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Leveraging Social Computing for Personalized Crisis Communication using Social )] TJ ET BT 26.250 639.438 Td /F1 9.8 Tf [(Media. PLOS Currents Disasters. 2016 Mar 24 . Edition 1. doi: 10.1371/currents.dis.b2c5870adf1b7a77af82e7d5552aabe7.)] TJ ET q 15.000 48.934 577.500 588.122 re W n 0.271 0.267 0.267 rg BT 26.250 610.335 Td /F4 12.0 Tf [(Abstract)] TJ ET BT 26.250 590.381 Td /F1 9.8 Tf [(Introduction: The extensive use of social media in modern life redefines social interaction and communication. Communication )] TJ ET BT 26.250 578.476 Td /F1 9.8 Tf [(plays an important role in mitigating, or exacerbating, the psychological and behavioral responses to critical incidents and )] TJ ET BT 26.250 566.571 Td /F1 9.8 Tf [(disasters. As recent disasters demonstrated, people tend to converge to social media during and following emergencies. )] TJ ET BT 26.250 554.667 Td /F1 9.8 Tf [(Authorities can then use this media and other computational methods to gain insights from the public, mainly to enhance )] TJ ET BT 26.250 542.762 Td /F1 9.8 Tf [(situational awareness, but also to improve their communication with the public and public adherence to instructions.)] TJ ET BT 26.250 523.357 Td /F1 9.8 Tf [(Methods: The current review presents a conceptual framework for studying psychological aspects of crisis and risk )] TJ ET BT 26.250 511.452 Td /F1 9.8 Tf [(communication using the social media through social computing.)] TJ ET BT 26.250 492.048 Td /F1 9.8 Tf [(Results: Advanced analytical tools can be integrated in the processes and objectivesof crisis communication. Theavailability of )] TJ ET BT 26.250 480.143 Td /F1 9.8 Tf [(the computational techniques can improve communication with the public by a process of Hyper-Targeted Crisis )] TJ ET BT 26.250 468.238 Td /F1 9.8 Tf [(Communication.)] TJ ET BT 26.250 448.833 Td /F1 9.8 Tf [(Discussion: The reviewsuggests that using advanced computational tools for target-audience profiling and linguistic matching in )] TJ ET BT 26.250 436.929 Td /F1 9.8 Tf [(social media, can facilitate more sensitive and personalized emergency communication.)] TJ ET BT 26.250 400.326 Td /F4 12.0 Tf [(Funding Statement)] TJ ET BT 26.250 380.372 Td /F1 9.8 Tf [(This work was supported by The Israeli Ministry of Science, Technology & Space \(Grant number 3-10814; URL: )] TJ ET BT 26.250 368.467 Td /F1 9.8 Tf [(https://most.gov.il/English/Pages/default.aspx \). The funders had no role in study design, data collection and analysis, decision to )] TJ ET BT 26.250 356.562 Td /F1 9.8 Tf [(publish, or preparation of the manuscript.)] TJ ET BT 26.250 327.460 Td /F4 12.0 Tf [(Background)] TJ ET BT 26.250 307.506 Td /F1 9.8 Tf [(The extensive use of social media in modern lives redefines social interaction and communication. Many of us are heavy )] TJ ET BT 26.250 295.601 Td /F1 9.8 Tf [(consumers of the different channels of the social media, whether it is social networks, microblogs, photo sharing, forums, blogs )] TJ ET BT 26.250 283.696 Td /F1 9.8 Tf [(or other types of the media. Nowadays, we are passive absorbers of information and active distributers of it. Many people spend )] TJ ET BT 26.250 271.791 Td /F1 9.8 Tf [(a considerable portion of their time maintaining their virtual social networks, expressing themselves in different settings, staying )] TJ ET BT 26.250 259.887 Td /F1 9.8 Tf [(tuned with the latest news and finding relevant information. During and following crisis or emergency situations, people turn to )] TJ ET BT 26.250 247.982 Td /F1 9.8 Tf [(social media for various reasons, to make sense of the world through words, or as described by Lahad)] TJ ET 0.267 0.267 0.267 rg BT 467.360 249.489 Td /F4 8.7 Tf [(1)] TJ ET 0.271 0.267 0.267 rg BT 472.178 247.982 Td /F1 9.8 Tf [( for the natural need of )] TJ ET BT 26.250 236.077 Td /F1 9.8 Tf [(the storytelling animal. We express ourselves and share our inner world through combination of words that others instantly )] TJ ET BT 26.250 224.172 Td /F1 9.8 Tf [(absorb, process and act upon.)] TJ ET BT 26.250 204.768 Td /F1 9.8 Tf [(Disaster situations increase the need for information. The need, roots from high levels of uncertainty, true threats to life or )] TJ ET BT 26.250 192.863 Td /F1 9.8 Tf [(health, and often manifest themselves in an urgent necessity for immediate information)] TJ ET 0.267 0.267 0.267 rg BT 400.709 194.370 Td /F4 8.7 Tf [(2)] TJ ET 0.271 0.267 0.267 rg BT 405.527 192.863 Td /F1 9.8 Tf [(. Effective crisis communications can )] TJ ET BT 26.250 180.958 Td /F1 9.8 Tf [(therefore serve to mitigate anxiogenesis and direct rapid and focused rescue, recovery, and rehabilitative operations)] TJ ET 0.267 0.267 0.267 rg BT 526.981 182.465 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 531.799 180.958 Td /F1 9.8 Tf [(. In the )] TJ ET BT 26.250 169.053 Td /F1 9.8 Tf [(past, in such situations, the mass media disseminated messages and information to the public. Social media has revolutionized )] TJ ET BT 26.250 157.149 Td /F1 9.8 Tf [(how individuals interact and how organizations and decision makers communicate with the public during routine and emergency )] TJ ET BT 26.250 145.244 Td /F1 9.8 Tf [(times through the possibility of mass interactive communication. It has been suggested by practitioners that successful message )] TJ ET BT 26.250 133.339 Td /F1 9.8 Tf [(phrasing, delivered to specific groups with specific characteristics, plays a crucial role in the communication process )] TJ ET 0.267 0.267 0.267 rg BT 528.005 134.846 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 532.823 133.339 Td /F1 9.8 Tf [(. While )] TJ ET BT 26.250 121.434 Td /F1 9.8 Tf [(tuning to the public is a challenging task, the application of state of the art computational methods on the huge amount of user-)] TJ ET BT 26.250 109.530 Td /F1 9.8 Tf [(generated textual content in social media, can enhance public understanding through insight extraction.)] TJ ET BT 26.250 90.125 Td /F1 9.8 Tf [(The current review seeks to clarify the following topics:)] TJ ET BT 32.206 70.738 Td /F1 9.8 Tf [(1.)] TJ ET BT 45.750 70.720 Td /F1 9.8 Tf [(The role of social media in the process of crisis and emergency communication)] TJ ET BT 32.206 55.083 Td /F1 9.8 Tf [(2.)] TJ ET BT 45.750 55.065 Td /F1 9.8 Tf [(The use of social computational approaches in the process of crisis and emergency communication.)] TJ ET Q q 15.000 684.354 577.500 53.646 re W n 0.267 0.267 0.267 rg BT 15.000 718.042 Td /F2 21.0 Tf [(Leveraging Social Computing for Personalized Crisis )] TJ ET BT 15.000 693.094 Td /F2 21.0 Tf [(Communication using Social Media)] TJ ET Q 0.271 0.267 0.267 rg BT 15.000 675.088 Td /F3 9.8 Tf [(March 24, 2016)] TJ ET BT 82.431 675.088 Td /F3 9.8 Tf [()] TJ ET 0.267 0.267 0.267 rg BT 87.306 675.088 Td /F3 9.8 Tf [(Review)] TJ ET BT 26.250 663.247 Td /F1 9.8 Tf [(Dmitry Leykin)] TJ ET 0.271 0.267 0.267 rg BT 85.296 663.247 Td /F1 9.8 Tf [(, )] TJ ET 0.267 0.267 0.267 rg BT 90.717 663.247 Td /F1 9.8 Tf [(Limor Aharonson-Daniel)] TJ ET 0.271 0.267 0.267 rg BT 195.832 663.247 Td /F1 9.8 Tf [(, )] TJ ET 0.267 0.267 0.267 rg BT 201.253 663.247 Td /F1 9.8 Tf [(Mooli Lahad)] TJ ET 0.271 0.267 0.267 rg BT 26.250 651.342 Td /F1 9.8 Tf [(Leykin D, Aharonson-Daniel L, Lahad M. Leveraging Social Computing for Personalized Crisis Communication using Social )] TJ ET BT 26.250 639.438 Td /F1 9.8 Tf [(Media. PLOS Currents Disasters. 2016 Mar 24 . Edition 1. doi: 10.1371/currents.dis.b2c5870adf1b7a77af82e7d5552aabe7.)] TJ ET q 15.000 48.934 577.500 588.122 re W n 0.271 0.267 0.267 rg BT 26.250 610.335 Td /F4 12.0 Tf [(Abstract)] TJ ET BT 26.250 590.381 Td /F1 9.8 Tf [(Introduction: The extensive use of social media in modern life redefines social interaction and communication. Communication )] TJ ET BT 26.250 578.476 Td /F1 9.8 Tf [(plays an important role in mitigating, or exacerbating, the psychological and behavioral responses to critical incidents and )] TJ ET BT 26.250 566.571 Td /F1 9.8 Tf [(disasters. As recent disasters demonstrated, people tend to converge to social media during and following emergencies. )] TJ ET BT 26.250 554.667 Td /F1 9.8 Tf [(Authorities can then use this media and other computational methods to gain insights from the public, mainly to enhance )] TJ ET BT 26.250 542.762 Td /F1 9.8 Tf [(situational awareness, but also to improve their communication with the public and public adherence to instructions.)] TJ ET BT 26.250 523.357 Td /F1 9.8 Tf [(Methods: The current review presents a conceptual framework for studying psychological aspects of crisis and risk )] TJ ET BT 26.250 511.452 Td /F1 9.8 Tf [(communication using the social media through social computing.)] TJ ET BT 26.250 492.048 Td /F1 9.8 Tf [(Results: Advanced analytical tools can be integrated in the processes and objectivesof crisis communication. Theavailability of )] TJ ET BT 26.250 480.143 Td /F1 9.8 Tf [(the computational techniques can improve communication with the public by a process of Hyper-Targeted Crisis )] TJ ET BT 26.250 468.238 Td /F1 9.8 Tf [(Communication.)] TJ ET BT 26.250 448.833 Td /F1 9.8 Tf [(Discussion: The reviewsuggests that using advanced computational tools for target-audience profiling and linguistic matching in )] TJ ET BT 26.250 436.929 Td /F1 9.8 Tf [(social media, can facilitate more sensitive and personalized emergency communication.)] TJ ET BT 26.250 400.326 Td /F4 12.0 Tf [(Funding Statement)] TJ ET BT 26.250 380.372 Td /F1 9.8 Tf [(This work was supported by The Israeli Ministry of Science, Technology & Space \(Grant number 3-10814; URL: )] TJ ET BT 26.250 368.467 Td /F1 9.8 Tf [(https://most.gov.il/English/Pages/default.aspx \). The funders had no role in study design, data collection and analysis, decision to )] TJ ET BT 26.250 356.562 Td /F1 9.8 Tf [(publish, or preparation of the manuscript.)] TJ ET BT 26.250 327.460 Td /F4 12.0 Tf [(Background)] TJ ET BT 26.250 307.506 Td /F1 9.8 Tf [(The extensive use of social media in modern lives redefines social interaction and communication. Many of us are heavy )] TJ ET BT 26.250 295.601 Td /F1 9.8 Tf [(consumers of the different channels of the social media, whether it is social networks, microblogs, photo sharing, forums, blogs )] TJ ET BT 26.250 283.696 Td /F1 9.8 Tf [(or other types of the media. Nowadays, we are passive absorbers of information and active distributers of it. Many people spend )] TJ ET BT 26.250 271.791 Td /F1 9.8 Tf [(a considerable portion of their time maintaining their virtual social networks, expressing themselves in different settings, staying )] TJ ET BT 26.250 259.887 Td /F1 9.8 Tf [(tuned with the latest news and finding relevant information. During and following crisis or emergency situations, people turn to )] TJ ET BT 26.250 247.982 Td /F1 9.8 Tf [(social media for various reasons, to make sense of the world through words, or as described by Lahad)] TJ ET 0.267 0.267 0.267 rg BT 467.360 249.489 Td /F4 8.7 Tf [(1)] TJ ET 0.271 0.267 0.267 rg BT 472.178 247.982 Td /F1 9.8 Tf [( for the natural need of )] TJ ET BT 26.250 236.077 Td /F1 9.8 Tf [(the storytelling animal. We express ourselves and share our inner world through combination of words that others instantly )] TJ ET BT 26.250 224.172 Td /F1 9.8 Tf [(absorb, process and act upon.)] TJ ET BT 26.250 204.768 Td /F1 9.8 Tf [(Disaster situations increase the need for information. The need, roots from high levels of uncertainty, true threats to life or )] TJ ET BT 26.250 192.863 Td /F1 9.8 Tf [(health, and often manifest themselves in an urgent necessity for immediate information)] TJ ET 0.267 0.267 0.267 rg BT 400.709 194.370 Td /F4 8.7 Tf [(2)] TJ ET 0.271 0.267 0.267 rg BT 405.527 192.863 Td /F1 9.8 Tf [(. Effective crisis communications can )] TJ ET BT 26.250 180.958 Td /F1 9.8 Tf [(therefore serve to mitigate anxiogenesis and direct rapid and focused rescue, recovery, and rehabilitative operations)] TJ ET 0.267 0.267 0.267 rg BT 526.981 182.465 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 531.799 180.958 Td /F1 9.8 Tf [(. In the )] TJ ET BT 26.250 169.053 Td /F1 9.8 Tf [(past, in such situations, the mass media disseminated messages and information to the public. Social media has revolutionized )] TJ ET BT 26.250 157.149 Td /F1 9.8 Tf [(how individuals interact and how organizations and decision makers communicate with the public during routine and emergency )] TJ ET BT 26.250 145.244 Td /F1 9.8 Tf [(times through the possibility of mass interactive communication. It has been suggested by practitioners that successful message )] TJ ET BT 26.250 133.339 Td /F1 9.8 Tf [(phrasing, delivered to specific groups with specific characteristics, plays a crucial role in the communication process )] TJ ET 0.267 0.267 0.267 rg BT 528.005 134.846 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 532.823 133.339 Td /F1 9.8 Tf [(. While )] TJ ET BT 26.250 121.434 Td /F1 9.8 Tf [(tuning to the public is a challenging task, the application of state of the art computational methods on the huge amount of user-)] TJ ET BT 26.250 109.530 Td /F1 9.8 Tf [(generated textual content in social media, can enhance public understanding through insight extraction.)] TJ ET BT 26.250 90.125 Td /F1 9.8 Tf [(The current review seeks to clarify the following topics:)] TJ ET BT 32.206 70.738 Td /F1 9.8 Tf [(1.)] TJ ET BT 45.750 70.720 Td /F1 9.8 Tf [(The role of social media in the process of crisis and emergency communication)] TJ ET BT 32.206 55.083 Td /F1 9.8 Tf [(2.)] TJ ET BT 45.750 55.065 Td /F1 9.8 Tf [(The use of social computational approaches in the process of crisis and emergency communication.)] TJ ET Q q 15.000 684.354 577.500 53.646 re W n 0.267 0.267 0.267 rg BT 15.000 718.042 Td /F2 21.0 Tf [(Leveraging Social Computing for Personalized Crisis )] TJ ET BT 15.000 693.094 Td /F2 21.0 Tf [(Communication using Social Media)] TJ ET Q 0.271 0.267 0.267 rg BT 15.000 675.088 Td /F3 9.8 Tf [(March 24, 2016)] TJ ET BT 82.431 675.088 Td /F3 9.8 Tf [()] TJ ET 0.267 0.267 0.267 rg BT 87.306 675.088 Td /F3 9.8 Tf [(Review)] TJ ET BT 26.250 663.247 Td /F1 9.8 Tf [(Dmitry Leykin)] TJ ET 0.271 0.267 0.267 rg BT 85.296 663.247 Td /F1 9.8 Tf [(, )] TJ ET 0.267 0.267 0.267 rg BT 90.717 663.247 Td /F1 9.8 Tf [(Limor Aharonson-Daniel)] TJ ET 0.271 0.267 0.267 rg BT 195.832 663.247 Td /F1 9.8 Tf [(, )] TJ ET 0.267 0.267 0.267 rg BT 201.253 663.247 Td /F1 9.8 Tf [(Mooli Lahad)] TJ ET 0.271 0.267 0.267 rg BT 26.250 651.342 Td /F1 9.8 Tf [(Leykin D, Aharonson-Daniel L, Lahad M. Leveraging Social Computing for Personalized Crisis Communication using Social )] TJ ET BT 26.250 639.438 Td /F1 9.8 Tf [(Media. PLOS Currents Disasters. 2016 Mar 24 . Edition 1. doi: 10.1371/currents.dis.b2c5870adf1b7a77af82e7d5552aabe7.)] TJ ET q 15.000 48.934 577.500 588.122 re W n 0.271 0.267 0.267 rg BT 26.250 610.335 Td /F4 12.0 Tf [(Abstract)] TJ ET BT 26.250 590.381 Td /F1 9.8 Tf [(Introduction: The extensive use of social media in modern life redefines social interaction and communication. Communication )] TJ ET BT 26.250 578.476 Td /F1 9.8 Tf [(plays an important role in mitigating, or exacerbating, the psychological and behavioral responses to critical incidents and )] TJ ET BT 26.250 566.571 Td /F1 9.8 Tf [(disasters. As recent disasters demonstrated, people tend to converge to social media during and following emergencies. )] TJ ET BT 26.250 554.667 Td /F1 9.8 Tf [(Authorities can then use this media and other computational methods to gain insights from the public, mainly to enhance )] TJ ET BT 26.250 542.762 Td /F1 9.8 Tf [(situational awareness, but also to improve their communication with the public and public adherence to instructions.)] TJ ET BT 26.250 523.357 Td /F1 9.8 Tf [(Methods: The current review presents a conceptual framework for studying psychological aspects of crisis and risk )] TJ ET BT 26.250 511.452 Td /F1 9.8 Tf [(communication using the social media through social computing.)] TJ ET BT 26.250 492.048 Td /F1 9.8 Tf [(Results: Advanced analytical tools can be integrated in the processes and objectivesof crisis communication. Theavailability of )] TJ ET BT 26.250 480.143 Td /F1 9.8 Tf [(the computational techniques can improve communication with the public by a process of Hyper-Targeted Crisis )] TJ ET BT 26.250 468.238 Td /F1 9.8 Tf [(Communication.)] TJ ET BT 26.250 448.833 Td /F1 9.8 Tf [(Discussion: The reviewsuggests that using advanced computational tools for target-audience profiling and linguistic matching in )] TJ ET BT 26.250 436.929 Td /F1 9.8 Tf [(social media, can facilitate more sensitive and personalized emergency communication.)] TJ ET BT 26.250 400.326 Td /F4 12.0 Tf [(Funding Statement)] TJ ET BT 26.250 380.372 Td /F1 9.8 Tf [(This work was supported by The Israeli Ministry of Science, Technology & Space \(Grant number 3-10814; URL: )] TJ ET BT 26.250 368.467 Td /F1 9.8 Tf [(https://most.gov.il/English/Pages/default.aspx \). The funders had no role in study design, data collection and analysis, decision to )] TJ ET BT 26.250 356.562 Td /F1 9.8 Tf [(publish, or preparation of the manuscript.)] TJ ET BT 26.250 327.460 Td /F4 12.0 Tf [(Background)] TJ ET BT 26.250 307.506 Td /F1 9.8 Tf [(The extensive use of social media in modern lives redefines social interaction and communication. Many of us are heavy )] TJ ET BT 26.250 295.601 Td /F1 9.8 Tf [(consumers of the different channels of the social media, whether it is social networks, microblogs, photo sharing, forums, blogs )] TJ ET BT 26.250 283.696 Td /F1 9.8 Tf [(or other types of the media. Nowadays, we are passive absorbers of information and active distributers of it. Many people spend )] TJ ET BT 26.250 271.791 Td /F1 9.8 Tf [(a considerable portion of their time maintaining their virtual social networks, expressing themselves in different settings, staying )] TJ ET BT 26.250 259.887 Td /F1 9.8 Tf [(tuned with the latest news and finding relevant information. During and following crisis or emergency situations, people turn to )] TJ ET BT 26.250 247.982 Td /F1 9.8 Tf [(social media for various reasons, to make sense of the world through words, or as described by Lahad)] TJ ET 0.267 0.267 0.267 rg BT 467.360 249.489 Td /F4 8.7 Tf [(1)] TJ ET 0.271 0.267 0.267 rg BT 472.178 247.982 Td /F1 9.8 Tf [( for the natural need of )] TJ ET BT 26.250 236.077 Td /F1 9.8 Tf [(the storytelling animal. We express ourselves and share our inner world through combination of words that others instantly )] TJ ET BT 26.250 224.172 Td /F1 9.8 Tf [(absorb, process and act upon.)] TJ ET BT 26.250 204.768 Td /F1 9.8 Tf [(Disaster situations increase the need for information. The need, roots from high levels of uncertainty, true threats to life or )] TJ ET BT 26.250 192.863 Td /F1 9.8 Tf [(health, and often manifest themselves in an urgent necessity for immediate information)] TJ ET 0.267 0.267 0.267 rg BT 400.709 194.370 Td /F4 8.7 Tf [(2)] TJ ET 0.271 0.267 0.267 rg BT 405.527 192.863 Td /F1 9.8 Tf [(. Effective crisis communications can )] TJ ET BT 26.250 180.958 Td /F1 9.8 Tf [(therefore serve to mitigate anxiogenesis and direct rapid and focused rescue, recovery, and rehabilitative operations)] TJ ET 0.267 0.267 0.267 rg BT 526.981 182.465 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 531.799 180.958 Td /F1 9.8 Tf [(. In the )] TJ ET BT 26.250 169.053 Td /F1 9.8 Tf [(past, in such situations, the mass media disseminated messages and information to the public. Social media has revolutionized )] TJ ET BT 26.250 157.149 Td /F1 9.8 Tf [(how individuals interact and how organizations and decision makers communicate with the public during routine and emergency )] TJ ET BT 26.250 145.244 Td /F1 9.8 Tf [(times through the possibility of mass interactive communication. It has been suggested by practitioners that successful message )] TJ ET BT 26.250 133.339 Td /F1 9.8 Tf [(phrasing, delivered to specific groups with specific characteristics, plays a crucial role in the communication process )] TJ ET 0.267 0.267 0.267 rg BT 528.005 134.846 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 532.823 133.339 Td /F1 9.8 Tf [(. While )] TJ ET BT 26.250 121.434 Td /F1 9.8 Tf [(tuning to the public is a challenging task, the application of state of the art computational methods on the huge amount of user-)] TJ ET BT 26.250 109.530 Td /F1 9.8 Tf [(generated textual content in social media, can enhance public understanding through insight extraction.)] TJ ET BT 26.250 90.125 Td /F1 9.8 Tf [(The current review seeks to clarify the following topics:)] TJ ET BT 32.206 70.738 Td /F1 9.8 Tf [(1.)] TJ ET BT 45.750 70.720 Td /F1 9.8 Tf [(The role of social media in the process of crisis and emergency communication)] TJ ET BT 32.206 55.083 Td /F1 9.8 Tf [(2.)] TJ ET BT 45.750 55.065 Td /F1 9.8 Tf [(The use of social computational approaches in the process of crisis and emergency communication.)] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(1)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 8 0 obj << /Type /Font /Subtype /Type1 /Name /F1 /BaseFont /Helvetica /Encoding /WinAnsiEncoding >> endobj 9 0 obj << /Type /Font /Subtype /Type1 /Name /F2 /BaseFont /Times-Bold /Encoding /WinAnsiEncoding >> endobj 10 0 obj << /Type /Font /Subtype /Type1 /Name /F3 /BaseFont /Times-Italic /Encoding /WinAnsiEncoding >> endobj 11 0 obj << /Type /Font /Subtype /Type1 /Name /F4 /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding >> endobj 12 0 obj << /Type /XObject /Subtype /Image /Width 500 /Height 52 /Filter /FlateDecode /DecodeParms << /Predictor 15 /Colors 1 /Columns 500 /BitsPerComponent 8>> /ColorSpace /DeviceGray /BitsPerComponent 8 /Length 144>> stream x1 0 'ݲ؎"e{dzAdzAdzAdzAdzAdzAdzAdzAdzAdzAdzAdzAtlM0\ endstream endobj 13 0 obj << /Type /XObject /Subtype /Image /Width 500 /Height 52 /SMask 12 0 R /Filter /FlateDecode /DecodeParms << /Predictor 15 /Colors 3 /Columns 500 /BitsPerComponent 8>> /ColorSpace /DeviceRGB /BitsPerComponent 8 /Length 3627>> stream x?b!/w N BU!@rܥ>L%|"ɾeB~qbϧG0 0 0 ü<,a ,a ,a /)܋( daKnW>'IR2 0x1ͽ{0 Z4= 4M޶mY}'IĖ2 0ָML}GQ48Iy>i("u>s6ne0 YfB;S}b 5ba,ZP՚ћuFڶ= 0{ǤbA!>m{wwW׵ApssDZdU,K:fs_׿___qykQbfMii{$̂>}JdB um{Lh'پy2c\ifZypE|,Uݝ,h4ڶ],R*\U-rQ9l PUUQ#G80aef_-mI*gߋlil-d:5ec]RUa0\ͼ$ ֌8jE%4BH\m=ϣfY )!vDL^)4axt=3*E<' _?>>.7DYt]׆0gqwр,ajmۢ(HMB$ [ U5;gfw`2R]u]GQD0g[Tt:a1J#,AU}0hwb>&8V~*ȀIH fuiah aMl7\:\>|,L5w(YqOFsoBy|<3^=6.ym۾%)~`XHnݰ‹IDs'oZ7In}wV|C%H{lDsDQ6]4jcЊͭ;*ٶv&A.09e(ji2btXɄy4?!ZEI"+Yɲy%'hZch@C+q,U1TA+FEe_R18;z.􃰢c ( H| $I.hy {ss&` 26:#(RuGQmZtJӅ˲csоj$}3#rl& j }>  ]x] ъ|G[1lfu ϛIaVz0-mvy2h܉ေA^XD`b"W#ֵU{(Y BAaDL]z_ex6 (nMOÈ%֐m`04Ԝ0aℓ.*"^=KeY~-'iM``v,Z꺞fRf1c+! 85BX,HeEљ @N^ԚG`5p |!L]U).?"l5eFQŞu]ɍK'eW/o҆&(i VM_ = E/J,;sqq0 W>rM=gdќ陞qѼ:2X;.˲j#Ņ뺮fbi\ו.u݋1mgXEQꋋ q@P%~VL0%b`eF4M}'@Sp8v;FߊdY]@u[5 (96 V0~1Gj Ňg֏= >\'ͪ$yX`!dhq%I0fF5x]t,hRˮb"3鈰@'5ؽE2>GI@ KȲLrÿ*1ȰT5ffܱYjuqqC3v(uEsI'c^چ#X,hAk"ZH6`XPW,>}fY6t^C8,Fi#nica Jzlf0 >سX,)m_Bs' c oN c>TT'%x&ߘ fi$W܇g[@ mDZ7]:RQjƘ.ğ$:؝, s{HzxqZKmF|Ϗ~p7@ {1$Xu}p(ĉzZaJ%i&0L@#\}GaT~tTQ,asEOxhy.?,aC9oqE=MS9I%8~WmdG:agO\\$,yHg^Ab%Ĩ7Z}џd2!YmN0X-#*ڈ/&W4MAYT?3;f udJ 6%ag9IxINlȦ|[+ ٘{R0' uT?NP%A wD&1=4L&ĵg-G)+0*V} 62T75yiۣrѰڳ>$'?B'IeY0K1WH]NkiR m<˭XF.xaijT==}~&;ہHA7| \( s\? ~_{ޒ{ O?^AVtї~g~~mVfS XtU6wMUv8|xxG-ü[A܆m!g۾勜*N5,sP=0 cibCub=2xa? 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672.2659 ] >> endobj 65 0 obj << /Type /Action /S /URI /URI (https://currents.plos.org/disasters/author/mooliltelhai-ac-il/) >> endobj 66 0 obj << /Type /Annot /Subtype /Link /A 67 0 R /Border [0 0 0] /H /I /Rect [ 467.3595 248.6874 472.1782 257.5058 ] >> endobj 67 0 obj << /Type /Action >> endobj 68 0 obj << /Type /Annot /Subtype /Link /A 69 0 R /Border [0 0 0] /H /I /Rect [ 400.7085 193.5684 405.5272 202.3868 ] >> endobj 69 0 obj << /Type /Action >> endobj 70 0 obj << /Type /Annot /Subtype /Link /A 71 0 R /Border [0 0 0] /H /I /Rect [ 526.9807 181.6637 531.7994 190.4820 ] >> endobj 71 0 obj << /Type /Action >> endobj 72 0 obj << /Type /Annot /Subtype /Link /A 73 0 R /Border [0 0 0] /H /I /Rect [ 528.0045 134.0447 532.8232 142.8630 ] >> endobj 73 0 obj << /Type /Action >> endobj 74 0 obj << /Type /Page /Parent 3 0 R /Annots [ 76 0 R 78 0 R 80 0 R 82 0 R 84 0 R 86 0 R 88 0 R 90 0 R 92 0 R 94 0 R 96 0 R 98 0 R 100 0 R 102 0 R 104 0 R 106 0 R 108 0 R 110 0 R 112 0 R 114 0 R 116 0 R 118 0 R 120 0 R 122 0 R 124 0 R 126 0 R 128 0 R 130 0 R 132 0 R 134 0 R 136 0 R 138 0 R 140 0 R 142 0 R 144 0 R 146 0 R 148 0 R 150 0 R 152 0 R 154 0 R 156 0 R 158 0 R 160 0 R 162 0 R 164 0 R 166 0 R 168 0 R 170 0 R 172 0 R 174 0 R 176 0 R 178 0 R 180 0 R 182 0 R 184 0 R 186 0 R 188 0 R 190 0 R 192 0 R 194 0 R 196 0 R 198 0 R 200 0 R 202 0 R 204 0 R 206 0 R 208 0 R 210 0 R 212 0 R 214 0 R 216 0 R 218 0 R 220 0 R 222 0 R 224 0 R 226 0 R 228 0 R 230 0 R 232 0 R 234 0 R 236 0 R 238 0 R 240 0 R 242 0 R 244 0 R 246 0 R 248 0 R 250 0 R 252 0 R 254 0 R 256 0 R 258 0 R 260 0 R ] /Contents 75 0 R >> endobj 75 0 obj << /Length 37204 >> stream 0.271 0.267 0.267 rg q 15.000 30.146 577.500 746.854 re W n 0.271 0.267 0.267 rg BT 32.206 767.494 Td /F1 9.8 Tf [(3.)] TJ ET BT 45.750 767.476 Td /F1 9.8 Tf [(The potential contribution of user-generated content and communication personalization to the effective management of )] TJ ET BT 45.750 755.571 Td /F1 9.8 Tf [(exceptional or out-of-the-ordinary situations, otherwise known as emergency and crisis management)] TJ ET 0.267 0.267 0.267 rg BT 478.709 757.079 Td /F4 8.7 Tf [(5)] TJ ET 0.271 0.267 0.267 rg BT 483.527 755.571 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 732.417 Td /F1 9.8 Tf [(Finally, we will discuss where and how the introduction of new media and the advancement of social computational approaches )] TJ ET BT 26.250 720.512 Td /F1 9.8 Tf [(calls for an update of theories and models of crisis communication.)] TJ ET BT 26.250 683.909 Td /F4 12.0 Tf [(Literature Review)] TJ ET BT 26.250 663.955 Td /F4 9.8 Tf [(Social Media and Crisis)] TJ ET BT 26.250 644.550 Td /F1 9.8 Tf [(The rise and proliferation of Web 2.0 applications revolutionized the way people interact and collaborate with each other. At the )] TJ ET BT 26.250 632.646 Td /F1 9.8 Tf [(core of the Web 2.0 framework, are the social media, a group of Internet-based applications that build on the ideological and )] TJ ET BT 26.250 620.741 Td /F1 9.8 Tf [(technological foundations of Web 2.0, and that allow the creation and exchange of User Generated Content \(UGC\))] TJ ET 0.267 0.267 0.267 rg BT 523.207 622.248 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 528.026 620.741 Td /F1 9.8 Tf [(. Social )] TJ ET BT 26.250 608.836 Td /F1 9.8 Tf [(media nowadays includes collaborative projects, blogs and microblogs, content communities, social networking sites, virtual )] TJ ET BT 26.250 596.931 Td /F1 9.8 Tf [(game worlds and virtual social worlds. Through these applications, users create online communities to share information, ideas, )] TJ ET BT 26.250 585.027 Td /F1 9.8 Tf [(personal messages, and other content. This user-generated content in a changing and dynamic virtual community creates a )] TJ ET BT 26.250 573.122 Td /F1 9.8 Tf [(massive and unstructured data)] TJ ET 0.267 0.267 0.267 rg BT 159.562 574.629 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 164.380 573.122 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 553.717 Td /F1 9.8 Tf [(In modern society, the signi?cance of the social media in everyday life has increased dramatically, turning the world into a )] TJ ET BT 26.250 541.812 Td /F1 9.8 Tf [(global village)] TJ ET 0.267 0.267 0.267 rg BT 89.099 543.320 Td /F4 8.7 Tf [(7)] TJ ET 0.271 0.267 0.267 rg BT 93.917 541.812 Td /F1 9.8 Tf [(. Since the late-20th century, new methods of mass media including the internet, cellular technologies and )] TJ ET BT 26.250 529.908 Td /F1 9.8 Tf [(personal portable devices, have been considered as fulfilling a significant role in agenda setting and framing)] TJ ET 0.267 0.267 0.267 rg BT 491.228 531.415 Td /F4 8.7 Tf [(8)] TJ ET 0.271 0.267 0.267 rg BT 496.046 529.908 Td /F1 9.8 Tf [(, creating social )] TJ ET BT 26.250 518.003 Td /F1 9.8 Tf [(capital)] TJ ET 0.267 0.267 0.267 rg BT 54.427 519.510 Td /F4 8.7 Tf [(9)] TJ ET 0.271 0.267 0.267 rg BT 59.246 518.003 Td /F1 9.8 Tf [(, and affecting politics, society and culture)] TJ ET 0.267 0.267 0.267 rg BT 239.709 519.510 Td /F4 8.7 Tf [(10)] TJ ET 0.271 0.267 0.267 rg BT 249.346 518.003 Td /F1 9.8 Tf [(. According to a recent report that summarizes social, digital & mobile )] TJ ET BT 26.250 506.098 Td /F1 9.8 Tf [(statistics among global users)] TJ ET 0.267 0.267 0.267 rg BT 151.421 507.605 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 161.058 506.098 Td /F1 9.8 Tf [(, 42% of worlds population are active internet users, and above one-quarter have active social )] TJ ET BT 26.250 494.193 Td /F1 9.8 Tf [(media accounts. With regard to social networking platforms, the report shows that there are 1.36 billion Facebook users, 629 )] TJ ET BT 26.250 482.289 Td /F1 9.8 Tf [(Million Qzone users \(Chinese social network\), 343 million Google+ users, 300 million Linkedin users and 271 million Twitter )] TJ ET BT 26.250 470.384 Td /F1 9.8 Tf [(users. Twitter, a microblogging communication platform, for instance, reaches an estimated total of over 50 million tweets per )] TJ ET BT 26.250 458.479 Td /F1 9.8 Tf [(day)] TJ ET 0.267 0.267 0.267 rg BT 41.967 459.986 Td /F4 8.7 Tf [(12)] TJ ET 0.271 0.267 0.267 rg BT 51.604 458.479 Td /F1 9.8 Tf [(, and during crisis twitter activity increases exponentially)] TJ ET 0.267 0.267 0.267 rg BT 293.268 459.986 Td /F4 8.7 Tf [(13)] TJ ET 0.271 0.267 0.267 rg BT 302.905 458.479 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 439.074 Td /F1 9.8 Tf [(Social media has become an essential mean of communication during disasters and it has been suggested that best practices )] TJ ET BT 26.250 427.170 Td /F1 9.8 Tf [(need to be established to assist organizations, government and decision makers in optimizing risk and crisis communication in )] TJ ET BT 26.250 415.265 Td /F1 9.8 Tf [(this era )] TJ ET 0.267 0.267 0.267 rg BT 60.931 416.772 Td /F4 8.7 Tf [(14)] TJ ET 0.271 0.267 0.267 rg BT 70.568 415.265 Td /F1 9.8 Tf [(. Houston et al.)] TJ ET 0.267 0.267 0.267 rg BT 136.147 416.772 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 145.784 415.265 Td /F1 9.8 Tf [( developed a framework for the practice and study of disaster social media. They note that disaster )] TJ ET BT 26.250 403.360 Td /F1 9.8 Tf [(social media users in the framework include communities, government, individuals, organisations, and media outlets. Those )] TJ ET BT 26.250 391.455 Td /F1 9.8 Tf [(players seek to gain insights from the massive user-generated content published in the communication channels, provided by )] TJ ET BT 26.250 379.551 Td /F1 9.8 Tf [(the social media platforms. This published timely information is quickly spread across multiple social networks, and may affect, )] TJ ET BT 26.250 367.646 Td /F1 9.8 Tf [(shape or direct public behavior without official involvement or even in contradiction to formal instructions )] TJ ET 0.267 0.267 0.267 rg BT 476.554 369.153 Td /F4 8.7 Tf [(16)] TJ ET 0.271 0.267 0.267 rg BT 486.191 367.646 Td /F1 9.8 Tf [(. Although many )] TJ ET BT 26.250 355.741 Td /F1 9.8 Tf [(challenges exist during social media message processing and analysis, \(e.g. management of information overload, credibility )] TJ ET BT 26.250 343.836 Td /F1 9.8 Tf [(issues, and prioritizing different classes of messages\), state of the art computational methods exist to carry out complex )] TJ ET BT 26.250 331.932 Td /F1 9.8 Tf [(information processing operations. )] TJ ET 0.267 0.267 0.267 rg BT 177.980 333.439 Td /F4 8.7 Tf [(17)] TJ ET 0.271 0.267 0.267 rg BT 26.250 312.527 Td /F4 9.8 Tf [(Crisis Communication)] TJ ET BT 26.250 293.122 Td /F1 9.8 Tf [(Crisis communication can be defined broadly as the collection, processing, and dissemination of information required )] TJ ET BT 26.250 281.217 Td /F1 9.8 Tf [(addressing a crisis situation. Crisis communication is a research and practice field in various setting and crises; including )] TJ ET BT 26.250 269.313 Td /F1 9.8 Tf [(national)] TJ ET 0.267 0.267 0.267 rg BT 60.395 270.820 Td /F4 8.7 Tf [(18)] TJ ET 0.271 0.267 0.267 rg BT 70.032 269.313 Td /F1 9.8 Tf [(, organizational crises)] TJ ET 0.267 0.267 0.267 rg BT 164.314 270.820 Td /F4 8.7 Tf [(19)] TJ ET 0.271 0.267 0.267 rg BT 173.952 273.201 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 176.361 270.820 Td /F4 8.7 Tf [(20)] TJ ET 0.271 0.267 0.267 rg BT 185.998 269.313 Td /F1 9.8 Tf [( , natural)] TJ ET 0.267 0.267 0.267 rg BT 223.936 270.820 Td /F4 8.7 Tf [(21)] TJ ET 0.271 0.267 0.267 rg BT 233.573 269.313 Td /F1 9.8 Tf [( , man-made)] TJ ET 0.267 0.267 0.267 rg BT 288.300 270.820 Td /F4 8.7 Tf [(22)] TJ ET 0.271 0.267 0.267 rg BT 297.937 269.313 Td /F1 9.8 Tf [( and technological disasters)] TJ ET 0.267 0.267 0.267 rg BT 418.242 270.820 Td /F4 8.7 Tf [(23)] TJ ET 0.271 0.267 0.267 rg BT 427.880 269.313 Td /F1 9.8 Tf [(. Effective communication with the )] TJ ET BT 26.250 257.408 Td /F1 9.8 Tf [(public remains a crucial role in public safety through crisis preparation and response)] TJ ET 0.267 0.267 0.267 rg BT 388.765 258.915 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 398.402 257.408 Td /F1 9.8 Tf [(. The media are critical for facilitating pre-)] TJ ET BT 26.250 245.503 Td /F1 9.8 Tf [(disaster preparedness, disseminating warning messages of pending disasters, providing information to citizens about the )] TJ ET BT 26.250 233.598 Td /F1 9.8 Tf [(disaster, and facilitating recovery efforts)] TJ ET 0.267 0.267 0.267 rg BT 198.025 235.106 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 207.663 233.598 Td /F1 9.8 Tf [(. Moreover, according to Firestone & Everly)] TJ ET 0.267 0.267 0.267 rg BT 395.146 235.106 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 399.964 233.598 Td /F1 9.8 Tf [( , crisis communications can play an )] TJ ET BT 26.250 221.694 Td /F1 9.8 Tf [(important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical incidents and disasters. One )] TJ ET BT 26.250 209.789 Td /F1 9.8 Tf [(important adjacent field of crisis communication is Risk Communication, defined as any purposeful exchange of information )] TJ ET BT 26.250 197.884 Td /F1 9.8 Tf [(about health or environmental risks between interested parties \(e.g. governments, agencies, media, citizens and more\))] TJ ET 0.267 0.267 0.267 rg BT 537.803 199.391 Td /F4 8.7 Tf [(26)] TJ ET 0.271 0.267 0.267 rg BT 547.441 197.884 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 185.979 Td /F1 9.8 Tf [(Reynolds and Seeger)] TJ ET 0.267 0.267 0.267 rg BT 120.006 187.487 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 129.643 185.979 Td /F1 9.8 Tf [( prposed a merged and comprehensive approach called crisis and emergency risk communication.)] TJ ET BT 26.250 166.575 Td /F4 9.8 Tf [(Social Media as a crisis communication platform)] TJ ET BT 26.250 147.170 Td /F1 9.8 Tf [(Social media has been radically changing the communication landscape over the past several years and as a result, crisis )] TJ ET BT 26.250 135.265 Td /F1 9.8 Tf [(communication is undergoing substantial change)] TJ ET 0.267 0.267 0.267 rg BT 237.055 136.772 Td /F4 8.7 Tf [(28)] TJ ET 0.271 0.267 0.267 rg BT 246.692 135.265 Td /F1 9.8 Tf [(. It becomes clear that social media serves as ultimate space for crisis )] TJ ET BT 26.250 123.360 Td /F1 9.8 Tf [(communication processes. Implementation of traditional crisis communication activities, was identified as one of the functions of )] TJ ET BT 26.250 111.456 Td /F1 9.8 Tf [(disaster social media)] TJ ET 0.267 0.267 0.267 rg BT 117.276 112.963 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 126.913 111.456 Td /F1 9.8 Tf [(. A recent survey)] TJ ET 0.267 0.267 0.267 rg BT 200.068 112.963 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 209.705 111.456 Td /F1 9.8 Tf [( of about 288 government officials in the US revealed that 71% of them were using )] TJ ET BT 26.250 99.551 Td /F1 9.8 Tf [(social media during crisis, with Facebook as the popular social medium. Officials used social media during various types of )] TJ ET BT 26.250 87.646 Td /F1 9.8 Tf [(crises, including public health)] TJ ET 0.267 0.267 0.267 rg BT 153.049 89.153 Td /F4 8.7 Tf [(30)] TJ ET 0.271 0.267 0.267 rg BT 162.686 87.646 Td /F1 9.8 Tf [(, natural disasters, transportational, political, social and criminal crises. Researchers found that )] TJ ET BT 26.250 75.741 Td /F1 9.8 Tf [(the degree of social media use, rather than the number of tools used, was positively correlated with local city officials )] TJ ET BT 26.250 63.837 Td /F1 9.8 Tf [(evaluations of their ability to control a crisis situation and the strength of their responses)] TJ ET 0.267 0.267 0.267 rg BT 403.965 65.344 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 413.602 63.837 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 44.432 Td /F1 9.8 Tf [(Another research team)] TJ ET 0.267 0.267 0.267 rg BT 125.417 45.939 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 135.055 44.432 Td /F1 9.8 Tf [( systematically investigated crisis messages collected from Twitter. Relevant tweets for 26 different )] TJ ET Q q 15.000 30.146 577.500 746.854 re W n 0.271 0.267 0.267 rg BT 32.206 767.494 Td /F1 9.8 Tf [(3.)] TJ ET BT 45.750 767.476 Td /F1 9.8 Tf [(The potential contribution of user-generated content and communication personalization to the effective management of )] TJ ET BT 45.750 755.571 Td /F1 9.8 Tf [(exceptional or out-of-the-ordinary situations, otherwise known as emergency and crisis management)] TJ ET 0.267 0.267 0.267 rg BT 478.709 757.079 Td /F4 8.7 Tf [(5)] TJ ET 0.271 0.267 0.267 rg BT 483.527 755.571 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 732.417 Td /F1 9.8 Tf [(Finally, we will discuss where and how the introduction of new media and the advancement of social computational approaches )] TJ ET BT 26.250 720.512 Td /F1 9.8 Tf [(calls for an update of theories and models of crisis communication.)] TJ ET BT 26.250 683.909 Td /F4 12.0 Tf [(Literature Review)] TJ ET BT 26.250 663.955 Td /F4 9.8 Tf [(Social Media and Crisis)] TJ ET BT 26.250 644.550 Td /F1 9.8 Tf [(The rise and proliferation of Web 2.0 applications revolutionized the way people interact and collaborate with each other. At the )] TJ ET BT 26.250 632.646 Td /F1 9.8 Tf [(core of the Web 2.0 framework, are the social media, a group of Internet-based applications that build on the ideological and )] TJ ET BT 26.250 620.741 Td /F1 9.8 Tf [(technological foundations of Web 2.0, and that allow the creation and exchange of User Generated Content \(UGC\))] TJ ET 0.267 0.267 0.267 rg BT 523.207 622.248 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 528.026 620.741 Td /F1 9.8 Tf [(. Social )] TJ ET BT 26.250 608.836 Td /F1 9.8 Tf [(media nowadays includes collaborative projects, blogs and microblogs, content communities, social networking sites, virtual )] TJ ET BT 26.250 596.931 Td /F1 9.8 Tf [(game worlds and virtual social worlds. Through these applications, users create online communities to share information, ideas, )] TJ ET BT 26.250 585.027 Td /F1 9.8 Tf [(personal messages, and other content. This user-generated content in a changing and dynamic virtual community creates a )] TJ ET BT 26.250 573.122 Td /F1 9.8 Tf [(massive and unstructured data)] TJ ET 0.267 0.267 0.267 rg BT 159.562 574.629 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 164.380 573.122 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 553.717 Td /F1 9.8 Tf [(In modern society, the signi?cance of the social media in everyday life has increased dramatically, turning the world into a )] TJ ET BT 26.250 541.812 Td /F1 9.8 Tf [(global village)] TJ ET 0.267 0.267 0.267 rg BT 89.099 543.320 Td /F4 8.7 Tf [(7)] TJ ET 0.271 0.267 0.267 rg BT 93.917 541.812 Td /F1 9.8 Tf [(. Since the late-20th century, new methods of mass media including the internet, cellular technologies and )] TJ ET BT 26.250 529.908 Td /F1 9.8 Tf [(personal portable devices, have been considered as fulfilling a significant role in agenda setting and framing)] TJ ET 0.267 0.267 0.267 rg BT 491.228 531.415 Td /F4 8.7 Tf [(8)] TJ ET 0.271 0.267 0.267 rg BT 496.046 529.908 Td /F1 9.8 Tf [(, creating social )] TJ ET BT 26.250 518.003 Td /F1 9.8 Tf [(capital)] TJ ET 0.267 0.267 0.267 rg BT 54.427 519.510 Td /F4 8.7 Tf [(9)] TJ ET 0.271 0.267 0.267 rg BT 59.246 518.003 Td /F1 9.8 Tf [(, and affecting politics, society and culture)] TJ ET 0.267 0.267 0.267 rg BT 239.709 519.510 Td /F4 8.7 Tf [(10)] TJ ET 0.271 0.267 0.267 rg BT 249.346 518.003 Td /F1 9.8 Tf [(. According to a recent report that summarizes social, digital & mobile )] TJ ET BT 26.250 506.098 Td /F1 9.8 Tf [(statistics among global users)] TJ ET 0.267 0.267 0.267 rg BT 151.421 507.605 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 161.058 506.098 Td /F1 9.8 Tf [(, 42% of worlds population are active internet users, and above one-quarter have active social )] TJ ET BT 26.250 494.193 Td /F1 9.8 Tf [(media accounts. With regard to social networking platforms, the report shows that there are 1.36 billion Facebook users, 629 )] TJ ET BT 26.250 482.289 Td /F1 9.8 Tf [(Million Qzone users \(Chinese social network\), 343 million Google+ users, 300 million Linkedin users and 271 million Twitter )] TJ ET BT 26.250 470.384 Td /F1 9.8 Tf [(users. Twitter, a microblogging communication platform, for instance, reaches an estimated total of over 50 million tweets per )] TJ ET BT 26.250 458.479 Td /F1 9.8 Tf [(day)] TJ ET 0.267 0.267 0.267 rg BT 41.967 459.986 Td /F4 8.7 Tf [(12)] TJ ET 0.271 0.267 0.267 rg BT 51.604 458.479 Td /F1 9.8 Tf [(, and during crisis twitter activity increases exponentially)] TJ ET 0.267 0.267 0.267 rg BT 293.268 459.986 Td /F4 8.7 Tf [(13)] TJ ET 0.271 0.267 0.267 rg BT 302.905 458.479 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 439.074 Td /F1 9.8 Tf [(Social media has become an essential mean of communication during disasters and it has been suggested that best practices )] TJ ET BT 26.250 427.170 Td /F1 9.8 Tf [(need to be established to assist organizations, government and decision makers in optimizing risk and crisis communication in )] TJ ET BT 26.250 415.265 Td /F1 9.8 Tf [(this era )] TJ ET 0.267 0.267 0.267 rg BT 60.931 416.772 Td /F4 8.7 Tf [(14)] TJ ET 0.271 0.267 0.267 rg BT 70.568 415.265 Td /F1 9.8 Tf [(. Houston et al.)] TJ ET 0.267 0.267 0.267 rg BT 136.147 416.772 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 145.784 415.265 Td /F1 9.8 Tf [( developed a framework for the practice and study of disaster social media. They note that disaster )] TJ ET BT 26.250 403.360 Td /F1 9.8 Tf [(social media users in the framework include communities, government, individuals, organisations, and media outlets. Those )] TJ ET BT 26.250 391.455 Td /F1 9.8 Tf [(players seek to gain insights from the massive user-generated content published in the communication channels, provided by )] TJ ET BT 26.250 379.551 Td /F1 9.8 Tf [(the social media platforms. This published timely information is quickly spread across multiple social networks, and may affect, )] TJ ET BT 26.250 367.646 Td /F1 9.8 Tf [(shape or direct public behavior without official involvement or even in contradiction to formal instructions )] TJ ET 0.267 0.267 0.267 rg BT 476.554 369.153 Td /F4 8.7 Tf [(16)] TJ ET 0.271 0.267 0.267 rg BT 486.191 367.646 Td /F1 9.8 Tf [(. Although many )] TJ ET BT 26.250 355.741 Td /F1 9.8 Tf [(challenges exist during social media message processing and analysis, \(e.g. management of information overload, credibility )] TJ ET BT 26.250 343.836 Td /F1 9.8 Tf [(issues, and prioritizing different classes of messages\), state of the art computational methods exist to carry out complex )] TJ ET BT 26.250 331.932 Td /F1 9.8 Tf [(information processing operations. )] TJ ET 0.267 0.267 0.267 rg BT 177.980 333.439 Td /F4 8.7 Tf [(17)] TJ ET 0.271 0.267 0.267 rg BT 26.250 312.527 Td /F4 9.8 Tf [(Crisis Communication)] TJ ET BT 26.250 293.122 Td /F1 9.8 Tf [(Crisis communication can be defined broadly as the collection, processing, and dissemination of information required )] TJ ET BT 26.250 281.217 Td /F1 9.8 Tf [(addressing a crisis situation. Crisis communication is a research and practice field in various setting and crises; including )] TJ ET BT 26.250 269.313 Td /F1 9.8 Tf [(national)] TJ ET 0.267 0.267 0.267 rg BT 60.395 270.820 Td /F4 8.7 Tf [(18)] TJ ET 0.271 0.267 0.267 rg BT 70.032 269.313 Td /F1 9.8 Tf [(, organizational crises)] TJ ET 0.267 0.267 0.267 rg BT 164.314 270.820 Td /F4 8.7 Tf [(19)] TJ ET 0.271 0.267 0.267 rg BT 173.952 273.201 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 176.361 270.820 Td /F4 8.7 Tf [(20)] TJ ET 0.271 0.267 0.267 rg BT 185.998 269.313 Td /F1 9.8 Tf [( , natural)] TJ ET 0.267 0.267 0.267 rg BT 223.936 270.820 Td /F4 8.7 Tf [(21)] TJ ET 0.271 0.267 0.267 rg BT 233.573 269.313 Td /F1 9.8 Tf [( , man-made)] TJ ET 0.267 0.267 0.267 rg BT 288.300 270.820 Td /F4 8.7 Tf [(22)] TJ ET 0.271 0.267 0.267 rg BT 297.937 269.313 Td /F1 9.8 Tf [( and technological disasters)] TJ ET 0.267 0.267 0.267 rg BT 418.242 270.820 Td /F4 8.7 Tf [(23)] TJ ET 0.271 0.267 0.267 rg BT 427.880 269.313 Td /F1 9.8 Tf [(. Effective communication with the )] TJ ET BT 26.250 257.408 Td /F1 9.8 Tf [(public remains a crucial role in public safety through crisis preparation and response)] TJ ET 0.267 0.267 0.267 rg BT 388.765 258.915 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 398.402 257.408 Td /F1 9.8 Tf [(. The media are critical for facilitating pre-)] TJ ET BT 26.250 245.503 Td /F1 9.8 Tf [(disaster preparedness, disseminating warning messages of pending disasters, providing information to citizens about the )] TJ ET BT 26.250 233.598 Td /F1 9.8 Tf [(disaster, and facilitating recovery efforts)] TJ ET 0.267 0.267 0.267 rg BT 198.025 235.106 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 207.663 233.598 Td /F1 9.8 Tf [(. Moreover, according to Firestone & Everly)] TJ ET 0.267 0.267 0.267 rg BT 395.146 235.106 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 399.964 233.598 Td /F1 9.8 Tf [( , crisis communications can play an )] TJ ET BT 26.250 221.694 Td /F1 9.8 Tf [(important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical incidents and disasters. One )] TJ ET BT 26.250 209.789 Td /F1 9.8 Tf [(important adjacent field of crisis communication is Risk Communication, defined as any purposeful exchange of information )] TJ ET BT 26.250 197.884 Td /F1 9.8 Tf [(about health or environmental risks between interested parties \(e.g. governments, agencies, media, citizens and more\))] TJ ET 0.267 0.267 0.267 rg BT 537.803 199.391 Td /F4 8.7 Tf [(26)] TJ ET 0.271 0.267 0.267 rg BT 547.441 197.884 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 185.979 Td /F1 9.8 Tf [(Reynolds and Seeger)] TJ ET 0.267 0.267 0.267 rg BT 120.006 187.487 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 129.643 185.979 Td /F1 9.8 Tf [( prposed a merged and comprehensive approach called crisis and emergency risk communication.)] TJ ET BT 26.250 166.575 Td /F4 9.8 Tf [(Social Media as a crisis communication platform)] TJ ET BT 26.250 147.170 Td /F1 9.8 Tf [(Social media has been radically changing the communication landscape over the past several years and as a result, crisis )] TJ ET BT 26.250 135.265 Td /F1 9.8 Tf [(communication is undergoing substantial change)] TJ ET 0.267 0.267 0.267 rg BT 237.055 136.772 Td /F4 8.7 Tf [(28)] TJ ET 0.271 0.267 0.267 rg BT 246.692 135.265 Td /F1 9.8 Tf [(. It becomes clear that social media serves as ultimate space for crisis )] TJ ET BT 26.250 123.360 Td /F1 9.8 Tf [(communication processes. Implementation of traditional crisis communication activities, was identified as one of the functions of )] TJ ET BT 26.250 111.456 Td /F1 9.8 Tf [(disaster social media)] TJ ET 0.267 0.267 0.267 rg BT 117.276 112.963 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 126.913 111.456 Td /F1 9.8 Tf [(. A recent survey)] TJ ET 0.267 0.267 0.267 rg BT 200.068 112.963 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 209.705 111.456 Td /F1 9.8 Tf [( of about 288 government officials in the US revealed that 71% of them were using )] TJ ET BT 26.250 99.551 Td /F1 9.8 Tf [(social media during crisis, with Facebook as the popular social medium. Officials used social media during various types of )] TJ ET BT 26.250 87.646 Td /F1 9.8 Tf [(crises, including public health)] TJ ET 0.267 0.267 0.267 rg BT 153.049 89.153 Td /F4 8.7 Tf [(30)] TJ ET 0.271 0.267 0.267 rg BT 162.686 87.646 Td /F1 9.8 Tf [(, natural disasters, transportational, political, social and criminal crises. Researchers found that )] TJ ET BT 26.250 75.741 Td /F1 9.8 Tf [(the degree of social media use, rather than the number of tools used, was positively correlated with local city officials )] TJ ET BT 26.250 63.837 Td /F1 9.8 Tf [(evaluations of their ability to control a crisis situation and the strength of their responses)] TJ ET 0.267 0.267 0.267 rg BT 403.965 65.344 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 413.602 63.837 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 44.432 Td /F1 9.8 Tf [(Another research team)] TJ ET 0.267 0.267 0.267 rg BT 125.417 45.939 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 135.055 44.432 Td /F1 9.8 Tf [( systematically investigated crisis messages collected from Twitter. Relevant tweets for 26 different )] TJ ET Q q 15.000 30.146 577.500 746.854 re W n 0.271 0.267 0.267 rg BT 32.206 767.494 Td /F1 9.8 Tf [(3.)] TJ ET BT 45.750 767.476 Td /F1 9.8 Tf [(The potential contribution of user-generated content and communication personalization to the effective management of )] TJ ET BT 45.750 755.571 Td /F1 9.8 Tf [(exceptional or out-of-the-ordinary situations, otherwise known as emergency and crisis management)] TJ ET 0.267 0.267 0.267 rg BT 478.709 757.079 Td /F4 8.7 Tf [(5)] TJ ET 0.271 0.267 0.267 rg BT 483.527 755.571 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 732.417 Td /F1 9.8 Tf [(Finally, we will discuss where and how the introduction of new media and the advancement of social computational approaches )] TJ ET BT 26.250 720.512 Td /F1 9.8 Tf [(calls for an update of theories and models of crisis communication.)] TJ ET BT 26.250 683.909 Td /F4 12.0 Tf [(Literature Review)] TJ ET BT 26.250 663.955 Td /F4 9.8 Tf [(Social Media and Crisis)] TJ ET BT 26.250 644.550 Td /F1 9.8 Tf [(The rise and proliferation of Web 2.0 applications revolutionized the way people interact and collaborate with each other. At the )] TJ ET BT 26.250 632.646 Td /F1 9.8 Tf [(core of the Web 2.0 framework, are the social media, a group of Internet-based applications that build on the ideological and )] TJ ET BT 26.250 620.741 Td /F1 9.8 Tf [(technological foundations of Web 2.0, and that allow the creation and exchange of User Generated Content \(UGC\))] TJ ET 0.267 0.267 0.267 rg BT 523.207 622.248 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 528.026 620.741 Td /F1 9.8 Tf [(. Social )] TJ ET BT 26.250 608.836 Td /F1 9.8 Tf [(media nowadays includes collaborative projects, blogs and microblogs, content communities, social networking sites, virtual )] TJ ET BT 26.250 596.931 Td /F1 9.8 Tf [(game worlds and virtual social worlds. Through these applications, users create online communities to share information, ideas, )] TJ ET BT 26.250 585.027 Td /F1 9.8 Tf [(personal messages, and other content. This user-generated content in a changing and dynamic virtual community creates a )] TJ ET BT 26.250 573.122 Td /F1 9.8 Tf [(massive and unstructured data)] TJ ET 0.267 0.267 0.267 rg BT 159.562 574.629 Td /F4 8.7 Tf [(6)] TJ ET 0.271 0.267 0.267 rg BT 164.380 573.122 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 553.717 Td /F1 9.8 Tf [(In modern society, the signi?cance of the social media in everyday life has increased dramatically, turning the world into a )] TJ ET BT 26.250 541.812 Td /F1 9.8 Tf [(global village)] TJ ET 0.267 0.267 0.267 rg BT 89.099 543.320 Td /F4 8.7 Tf [(7)] TJ ET 0.271 0.267 0.267 rg BT 93.917 541.812 Td /F1 9.8 Tf [(. Since the late-20th century, new methods of mass media including the internet, cellular technologies and )] TJ ET BT 26.250 529.908 Td /F1 9.8 Tf [(personal portable devices, have been considered as fulfilling a significant role in agenda setting and framing)] TJ ET 0.267 0.267 0.267 rg BT 491.228 531.415 Td /F4 8.7 Tf [(8)] TJ ET 0.271 0.267 0.267 rg BT 496.046 529.908 Td /F1 9.8 Tf [(, creating social )] TJ ET BT 26.250 518.003 Td /F1 9.8 Tf [(capital)] TJ ET 0.267 0.267 0.267 rg BT 54.427 519.510 Td /F4 8.7 Tf [(9)] TJ ET 0.271 0.267 0.267 rg BT 59.246 518.003 Td /F1 9.8 Tf [(, and affecting politics, society and culture)] TJ ET 0.267 0.267 0.267 rg BT 239.709 519.510 Td /F4 8.7 Tf [(10)] TJ ET 0.271 0.267 0.267 rg BT 249.346 518.003 Td /F1 9.8 Tf [(. According to a recent report that summarizes social, digital & mobile )] TJ ET BT 26.250 506.098 Td /F1 9.8 Tf [(statistics among global users)] TJ ET 0.267 0.267 0.267 rg BT 151.421 507.605 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 161.058 506.098 Td /F1 9.8 Tf [(, 42% of worlds population are active internet users, and above one-quarter have active social )] TJ ET BT 26.250 494.193 Td /F1 9.8 Tf [(media accounts. With regard to social networking platforms, the report shows that there are 1.36 billion Facebook users, 629 )] TJ ET BT 26.250 482.289 Td /F1 9.8 Tf [(Million Qzone users \(Chinese social network\), 343 million Google+ users, 300 million Linkedin users and 271 million Twitter )] TJ ET BT 26.250 470.384 Td /F1 9.8 Tf [(users. Twitter, a microblogging communication platform, for instance, reaches an estimated total of over 50 million tweets per )] TJ ET BT 26.250 458.479 Td /F1 9.8 Tf [(day)] TJ ET 0.267 0.267 0.267 rg BT 41.967 459.986 Td /F4 8.7 Tf [(12)] TJ ET 0.271 0.267 0.267 rg BT 51.604 458.479 Td /F1 9.8 Tf [(, and during crisis twitter activity increases exponentially)] TJ ET 0.267 0.267 0.267 rg BT 293.268 459.986 Td /F4 8.7 Tf [(13)] TJ ET 0.271 0.267 0.267 rg BT 302.905 458.479 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 439.074 Td /F1 9.8 Tf [(Social media has become an essential mean of communication during disasters and it has been suggested that best practices )] TJ ET BT 26.250 427.170 Td /F1 9.8 Tf [(need to be established to assist organizations, government and decision makers in optimizing risk and crisis communication in )] TJ ET BT 26.250 415.265 Td /F1 9.8 Tf [(this era )] TJ ET 0.267 0.267 0.267 rg BT 60.931 416.772 Td /F4 8.7 Tf [(14)] TJ ET 0.271 0.267 0.267 rg BT 70.568 415.265 Td /F1 9.8 Tf [(. Houston et al.)] TJ ET 0.267 0.267 0.267 rg BT 136.147 416.772 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 145.784 415.265 Td /F1 9.8 Tf [( developed a framework for the practice and study of disaster social media. They note that disaster )] TJ ET BT 26.250 403.360 Td /F1 9.8 Tf [(social media users in the framework include communities, government, individuals, organisations, and media outlets. Those )] TJ ET BT 26.250 391.455 Td /F1 9.8 Tf [(players seek to gain insights from the massive user-generated content published in the communication channels, provided by )] TJ ET BT 26.250 379.551 Td /F1 9.8 Tf [(the social media platforms. This published timely information is quickly spread across multiple social networks, and may affect, )] TJ ET BT 26.250 367.646 Td /F1 9.8 Tf [(shape or direct public behavior without official involvement or even in contradiction to formal instructions )] TJ ET 0.267 0.267 0.267 rg BT 476.554 369.153 Td /F4 8.7 Tf [(16)] TJ ET 0.271 0.267 0.267 rg BT 486.191 367.646 Td /F1 9.8 Tf [(. Although many )] TJ ET BT 26.250 355.741 Td /F1 9.8 Tf [(challenges exist during social media message processing and analysis, \(e.g. management of information overload, credibility )] TJ ET BT 26.250 343.836 Td /F1 9.8 Tf [(issues, and prioritizing different classes of messages\), state of the art computational methods exist to carry out complex )] TJ ET BT 26.250 331.932 Td /F1 9.8 Tf [(information processing operations. )] TJ ET 0.267 0.267 0.267 rg BT 177.980 333.439 Td /F4 8.7 Tf [(17)] TJ ET 0.271 0.267 0.267 rg BT 26.250 312.527 Td /F4 9.8 Tf [(Crisis Communication)] TJ ET BT 26.250 293.122 Td /F1 9.8 Tf [(Crisis communication can be defined broadly as the collection, processing, and dissemination of information required )] TJ ET BT 26.250 281.217 Td /F1 9.8 Tf [(addressing a crisis situation. Crisis communication is a research and practice field in various setting and crises; including )] TJ ET BT 26.250 269.313 Td /F1 9.8 Tf [(national)] TJ ET 0.267 0.267 0.267 rg BT 60.395 270.820 Td /F4 8.7 Tf [(18)] TJ ET 0.271 0.267 0.267 rg BT 70.032 269.313 Td /F1 9.8 Tf [(, organizational crises)] TJ ET 0.267 0.267 0.267 rg BT 164.314 270.820 Td /F4 8.7 Tf [(19)] TJ ET 0.271 0.267 0.267 rg BT 173.952 273.201 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 176.361 270.820 Td /F4 8.7 Tf [(20)] TJ ET 0.271 0.267 0.267 rg BT 185.998 269.313 Td /F1 9.8 Tf [( , natural)] TJ ET 0.267 0.267 0.267 rg BT 223.936 270.820 Td /F4 8.7 Tf [(21)] TJ ET 0.271 0.267 0.267 rg BT 233.573 269.313 Td /F1 9.8 Tf [( , man-made)] TJ ET 0.267 0.267 0.267 rg BT 288.300 270.820 Td /F4 8.7 Tf [(22)] TJ ET 0.271 0.267 0.267 rg BT 297.937 269.313 Td /F1 9.8 Tf [( and technological disasters)] TJ ET 0.267 0.267 0.267 rg BT 418.242 270.820 Td /F4 8.7 Tf [(23)] TJ ET 0.271 0.267 0.267 rg BT 427.880 269.313 Td /F1 9.8 Tf [(. Effective communication with the )] TJ ET BT 26.250 257.408 Td /F1 9.8 Tf [(public remains a crucial role in public safety through crisis preparation and response)] TJ ET 0.267 0.267 0.267 rg BT 388.765 258.915 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 398.402 257.408 Td /F1 9.8 Tf [(. The media are critical for facilitating pre-)] TJ ET BT 26.250 245.503 Td /F1 9.8 Tf [(disaster preparedness, disseminating warning messages of pending disasters, providing information to citizens about the )] TJ ET BT 26.250 233.598 Td /F1 9.8 Tf [(disaster, and facilitating recovery efforts)] TJ ET 0.267 0.267 0.267 rg BT 198.025 235.106 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 207.663 233.598 Td /F1 9.8 Tf [(. Moreover, according to Firestone & Everly)] TJ ET 0.267 0.267 0.267 rg BT 395.146 235.106 Td /F4 8.7 Tf [(3)] TJ ET 0.271 0.267 0.267 rg BT 399.964 233.598 Td /F1 9.8 Tf [( , crisis communications can play an )] TJ ET BT 26.250 221.694 Td /F1 9.8 Tf [(important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical incidents and disasters. One )] TJ ET BT 26.250 209.789 Td /F1 9.8 Tf [(important adjacent field of crisis communication is Risk Communication, defined as any purposeful exchange of information )] TJ ET BT 26.250 197.884 Td /F1 9.8 Tf [(about health or environmental risks between interested parties \(e.g. governments, agencies, media, citizens and more\))] TJ ET 0.267 0.267 0.267 rg BT 537.803 199.391 Td /F4 8.7 Tf [(26)] TJ ET 0.271 0.267 0.267 rg BT 547.441 197.884 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 185.979 Td /F1 9.8 Tf [(Reynolds and Seeger)] TJ ET 0.267 0.267 0.267 rg BT 120.006 187.487 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 129.643 185.979 Td /F1 9.8 Tf [( prposed a merged and comprehensive approach called crisis and emergency risk communication.)] TJ ET BT 26.250 166.575 Td /F4 9.8 Tf [(Social Media as a crisis communication platform)] TJ ET BT 26.250 147.170 Td /F1 9.8 Tf [(Social media has been radically changing the communication landscape over the past several years and as a result, crisis )] TJ ET BT 26.250 135.265 Td /F1 9.8 Tf [(communication is undergoing substantial change)] TJ ET 0.267 0.267 0.267 rg BT 237.055 136.772 Td /F4 8.7 Tf [(28)] TJ ET 0.271 0.267 0.267 rg BT 246.692 135.265 Td /F1 9.8 Tf [(. It becomes clear that social media serves as ultimate space for crisis )] TJ ET BT 26.250 123.360 Td /F1 9.8 Tf [(communication processes. Implementation of traditional crisis communication activities, was identified as one of the functions of )] TJ ET BT 26.250 111.456 Td /F1 9.8 Tf [(disaster social media)] TJ ET 0.267 0.267 0.267 rg BT 117.276 112.963 Td /F4 8.7 Tf [(15)] TJ ET 0.271 0.267 0.267 rg BT 126.913 111.456 Td /F1 9.8 Tf [(. A recent survey)] TJ ET 0.267 0.267 0.267 rg BT 200.068 112.963 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 209.705 111.456 Td /F1 9.8 Tf [( of about 288 government officials in the US revealed that 71% of them were using )] TJ ET BT 26.250 99.551 Td /F1 9.8 Tf [(social media during crisis, with Facebook as the popular social medium. Officials used social media during various types of )] TJ ET BT 26.250 87.646 Td /F1 9.8 Tf [(crises, including public health)] TJ ET 0.267 0.267 0.267 rg BT 153.049 89.153 Td /F4 8.7 Tf [(30)] TJ ET 0.271 0.267 0.267 rg BT 162.686 87.646 Td /F1 9.8 Tf [(, natural disasters, transportational, political, social and criminal crises. Researchers found that )] TJ ET BT 26.250 75.741 Td /F1 9.8 Tf [(the degree of social media use, rather than the number of tools used, was positively correlated with local city officials )] TJ ET BT 26.250 63.837 Td /F1 9.8 Tf [(evaluations of their ability to control a crisis situation and the strength of their responses)] TJ ET 0.267 0.267 0.267 rg BT 403.965 65.344 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 413.602 63.837 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 44.432 Td /F1 9.8 Tf [(Another research team)] TJ ET 0.267 0.267 0.267 rg BT 125.417 45.939 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 135.055 44.432 Td /F1 9.8 Tf [( systematically investigated crisis messages collected from Twitter. 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336 0 R 338 0 R 340 0 R 342 0 R 344 0 R 346 0 R 348 0 R 350 0 R 352 0 R 354 0 R 356 0 R 358 0 R 360 0 R 362 0 R 364 0 R 366 0 R 368 0 R 370 0 R 372 0 R 374 0 R 376 0 R 378 0 R 380 0 R 382 0 R 384 0 R 386 0 R 388 0 R 390 0 R 392 0 R 394 0 R 396 0 R 398 0 R 400 0 R 402 0 R 404 0 R 406 0 R ] /Contents 263 0 R >> endobj 263 0 obj << /Length 36631 >> stream 0.271 0.267 0.267 rg q 15.000 26.524 577.500 750.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(crisis situations that took place in 2012 were sampled from the available public twitter stream, and for each situation types of )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(information and sources of that information were examined. During crisis situation, eyewitnesses, government, NGOs, business, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(media & news organizations and outsiders participate and publish different information types in social media )] TJ ET 0.267 0.267 0.267 rg BT 494.455 745.174 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 504.092 743.667 Td /F1 9.8 Tf [(. Types of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(information include data about affected individuals \(e.g. people trapped, casualties, people missing, found or seen\), )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(infrastructure & utilities \(e.g. damages, reports about environment, and availability of services\), donations & volunteer \(e.g. )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(donations of money, goods of services; requesting help; shelter needed, food shortage/distribution; volunteer information\); )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(caution & advice \(e.g. warnings, preparation; caution & advice; tips; safety\), sympathy & emotional support \(e.g. concerns and )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(condolences; gratitude, prayers; support; emotion-related info\) and other useful information \(e.g. flood level; weather, wind, )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(visibility; information verification\). Based on the available data of that study \(https://crisislex.org/tweet-collections.html\), it seems )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(that the Government, being the official source of information during crisis, was responsible for less than 5% of all published )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(information. Of the applicable information types, the majority \(32%\) of the communication efforts by the government were about )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(useful information \(32%\) and caution and advice \(27%\). Only 6% of the published tweets concerned about sympathy and )] TJ ET BT 26.250 624.619 Td /F1 9.8 Tf [(support.)] TJ ET BT 26.250 605.214 Td /F4 9.8 Tf [(Effective Crisis Communication.)] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(Seeger)] TJ ET 0.267 0.267 0.267 rg BT 57.684 587.317 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 67.321 585.810 Td /F1 9.8 Tf [( demonstrated ten best practices of crisis communication, drawn from a literature review and verified by expert crisis )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(communication panel that reached high consensus. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 282.587 575.412 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 292.225 573.905 Td /F1 9.8 Tf [( divides the recommendations into three broad categories: )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(strategic planning, proactive strategies and strategic response. These are used as principles or processes that underlie an )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(effective crisis communication plan and an effective crisis response.)] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(Covello, McCallum, & Pavlova)] TJ ET 0.267 0.267 0.267 rg BT 156.822 532.198 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 166.459 530.691 Td /F1 9.8 Tf [( note that detailed, in-depth knowledge and understanding of both the characteristics of target )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(audience and the community in which the target audience resides, are needed for effective message development. Target )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(audience characteristics include knowledge, attitudes, perception, behavior, beliefs, values, needs and concerns, while )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(community characteristics include information about social networks, opinion leaders and community dynamics. Covello)] TJ ET 0.267 0.267 0.267 rg BT 541.547 496.484 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 26.250 483.072 Td /F1 9.8 Tf [(suggested several risk communication templates to utilize in the process of risk communication: 1\) CCO \(Compassion, )] TJ ET BT 26.250 471.167 Td /F1 9.8 Tf [(Conviction, Optimism\) template, which is particularly useful when responding to a question indicating a high level of emotion or )] TJ ET BT 26.250 459.262 Td /F1 9.8 Tf [(outrage)] TJ ET 0.267 0.267 0.267 rg BT 59.312 460.769 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 64.131 459.262 Td /F1 9.8 Tf [(. 2\) Primacy/Recency template)] TJ ET 0.267 0.267 0.267 rg BT 196.877 460.769 Td /F4 8.7 Tf [(35)] TJ ET 0.271 0.267 0.267 rg BT 206.515 459.262 Td /F1 9.8 Tf [( emphasizes the first and last messages in the communication due to the restriction of )] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(recall of information. 3\) 27/9/3 template states that the combination of the three key messages should equal a total of 27 words, )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(9 seconds spoken aloud, and 3 key messages)] TJ ET 0.267 0.267 0.267 rg BT 226.232 436.960 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 235.870 435.453 Td /F1 9.8 Tf [(. 4\) AGL-4 \(Average Grade Level minus 4\))] TJ ET 0.267 0.267 0.267 rg BT 419.023 436.960 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 423.842 435.453 Td /F1 9.8 Tf [( template recommends phrasing )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(the message at four reading grade levels below that of the stakeholder taking into account the national reading grade level. 5\) )] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(1N=3P \(Negative equals 3 positives\) template counterattacks the weight of negative messages by introducing three positive )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(messages for every negative message. 5\) TBC \(Trust, Benefits, Control\) template suggests to phrase three messages that are )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(phrased with specific order and content \(trust first, benefits second and control last\). These templates, however, were not )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(empirically tested and thus limit our certainty regarding effective messaging.)] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(The media plays a crucial role in shaping public response to terrorism and other disasters)] TJ ET 0.267 0.267 0.267 rg BT 411.521 358.031 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 421.159 356.524 Td /F1 9.8 Tf [(. Effective crisis communication )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(suggests the need of an unhindered but purposeful exchange of information within and between authorities, organizations, )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(media, involved individuals, and groups before, during, and after a crisis)] TJ ET 0.267 0.267 0.267 rg BT 336.222 334.222 Td /F4 8.7 Tf [(36)] TJ ET 0.271 0.267 0.267 rg BT 345.859 332.715 Td /F1 9.8 Tf [(. Covello et al.)] TJ ET 0.267 0.267 0.267 rg BT 407.635 334.222 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 417.273 332.715 Td /F1 9.8 Tf [( also argue that risk communication )] TJ ET BT 26.250 320.810 Td /F1 9.8 Tf [(is no longer a neglected topic within government. With the changing media environment and the developing online atmosphere, )] TJ ET BT 26.250 308.905 Td /F1 9.8 Tf [(traditional media are shifting to practices that are more adapt to a social media environment)] TJ ET 0.267 0.267 0.267 rg BT 420.755 310.412 Td /F4 8.7 Tf [(37)] TJ ET 0.271 0.267 0.267 rg BT 430.392 308.905 Td /F1 9.8 Tf [(. Furthermore, to improve )] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(services and communication with the population, government officials seek to leverage these new media channels. )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(Nevertheless, Graham, Avery & Park)] TJ ET 0.267 0.267 0.267 rg BT 186.091 286.603 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 195.729 285.096 Td /F1 9.8 Tf [( emphasize that governments engagement through social media should be more active )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(and reflect a clear response priority in crisis communication plans. Ambiguous or unreliable communications can cause damage )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(and serve to exacerbate publics mental health reactions and a delay in operational response and recovery)] TJ ET 0.267 0.267 0.267 rg BT 485.807 262.793 Td /F4 8.7 Tf [(38)] TJ ET 0.271 0.267 0.267 rg BT 495.444 261.286 Td /F1 9.8 Tf [(To conclude, it is )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(important to incorporate the use of citizen generated content into any crisis plan and learn to respond to the media and public )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(even quicker than before)] TJ ET 0.267 0.267 0.267 rg BT 133.558 238.984 Td /F4 8.7 Tf [(39)] TJ ET 0.271 0.267 0.267 rg BT 26.250 218.072 Td /F4 9.8 Tf [(Models and theories of Crisis Communication. )] TJ ET BT 244.046 218.072 Td /F1 9.8 Tf [(Over the years several models of crisis communication were developed)] TJ ET 0.267 0.267 0.267 rg BT 551.814 219.579 Td /F4 8.7 Tf [(40)] TJ ET 0.271 0.267 0.267 rg BT 561.451 218.072 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 206.167 Td /F1 9.8 Tf [(such as the Situational Crisis Communication Theory \(SCCT)] TJ ET 0.267 0.267 0.267 rg BT 287.404 207.674 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 297.041 206.167 Td /F1 9.8 Tf [(\). SCCT predicts the reputational threat presented by a crisis )] TJ ET BT 26.250 194.262 Td /F1 9.8 Tf [(prescribes crisis response strategies designed to protect reputational assets)] TJ ET 0.267 0.267 0.267 rg BT 357.341 195.770 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 366.978 194.262 Td /F1 9.8 Tf [(, especially in organizational context.)] TJ ET BT 26.250 174.858 Td /F1 9.8 Tf [(Chaos Theory)] TJ ET 0.267 0.267 0.267 rg BT 87.480 176.365 Td /F4 8.7 Tf [(42)] TJ ET 0.271 0.267 0.267 rg BT 97.117 174.858 Td /F1 9.8 Tf [( was described as a general framework for understanding crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 438.484 176.365 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 448.122 174.858 Td /F1 9.8 Tf [(. CT argues that chaos or )] TJ ET BT 26.250 162.953 Td /F1 9.8 Tf [(disorder may be the necessary precursor of a higher level of order. CT functions best at the broad level of a paradigm for )] TJ ET BT 26.250 151.048 Td /F1 9.8 Tf [(understanding the behavior of complex systems. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 269.571 152.555 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 279.208 151.048 Td /F1 9.8 Tf [( adds that in the context of CT, small variance in communication )] TJ ET BT 26.250 139.143 Td /F1 9.8 Tf [(processes, message phrasing, distribution, timing or other factors may produce extensive fluctuations in systems, leading to )] TJ ET BT 26.250 127.239 Td /F1 9.8 Tf [(bifurcation.)] TJ ET BT 26.250 107.834 Td /F1 9.8 Tf [(Reynolds & Seeger)] TJ ET 0.267 0.267 0.267 rg BT 110.246 109.341 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 119.884 107.834 Td /F1 9.8 Tf [( presented the Crisis and Emergency Risk Communication \(CERC\) five-stage integrative model. The )] TJ ET BT 26.250 95.929 Td /F1 9.8 Tf [(model blends crisis and risk communication together into a processes model \(see)] TJ ET 0.267 0.267 0.267 rg BT 377.377 97.436 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 387.014 95.929 Td /F1 9.8 Tf [(\), assuming that crises will develop and )] TJ ET BT 26.250 84.024 Td /F1 9.8 Tf [(progress in a predictable and systematic ways. According to the working model of CERC, communication processes occur )] TJ ET BT 26.250 72.120 Td /F1 9.8 Tf [(during five stages: 1\) Pre-crisis, 2\) Initial Event, 3\) Maintenance, 4\) Resolution and 5\) Evaluation. In each stage, communication )] TJ ET BT 26.250 60.215 Td /F1 9.8 Tf [(can have different aims, strategies and target audiences.)] TJ ET BT 26.250 40.810 Td /F1 9.8 Tf [(With the advancing new media, the social media aspect was integrated in these models. For instance, the Social Media )] TJ ET Q q 15.000 26.524 577.500 750.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(crisis situations that took place in 2012 were sampled from the available public twitter stream, and for each situation types of )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(information and sources of that information were examined. During crisis situation, eyewitnesses, government, NGOs, business, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(media & news organizations and outsiders participate and publish different information types in social media )] TJ ET 0.267 0.267 0.267 rg BT 494.455 745.174 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 504.092 743.667 Td /F1 9.8 Tf [(. Types of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(information include data about affected individuals \(e.g. people trapped, casualties, people missing, found or seen\), )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(infrastructure & utilities \(e.g. damages, reports about environment, and availability of services\), donations & volunteer \(e.g. )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(donations of money, goods of services; requesting help; shelter needed, food shortage/distribution; volunteer information\); )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(caution & advice \(e.g. warnings, preparation; caution & advice; tips; safety\), sympathy & emotional support \(e.g. concerns and )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(condolences; gratitude, prayers; support; emotion-related info\) and other useful information \(e.g. flood level; weather, wind, )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(visibility; information verification\). Based on the available data of that study \(https://crisislex.org/tweet-collections.html\), it seems )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(that the Government, being the official source of information during crisis, was responsible for less than 5% of all published )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(information. Of the applicable information types, the majority \(32%\) of the communication efforts by the government were about )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(useful information \(32%\) and caution and advice \(27%\). Only 6% of the published tweets concerned about sympathy and )] TJ ET BT 26.250 624.619 Td /F1 9.8 Tf [(support.)] TJ ET BT 26.250 605.214 Td /F4 9.8 Tf [(Effective Crisis Communication.)] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(Seeger)] TJ ET 0.267 0.267 0.267 rg BT 57.684 587.317 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 67.321 585.810 Td /F1 9.8 Tf [( demonstrated ten best practices of crisis communication, drawn from a literature review and verified by expert crisis )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(communication panel that reached high consensus. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 282.587 575.412 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 292.225 573.905 Td /F1 9.8 Tf [( divides the recommendations into three broad categories: )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(strategic planning, proactive strategies and strategic response. These are used as principles or processes that underlie an )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(effective crisis communication plan and an effective crisis response.)] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(Covello, McCallum, & Pavlova)] TJ ET 0.267 0.267 0.267 rg BT 156.822 532.198 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 166.459 530.691 Td /F1 9.8 Tf [( note that detailed, in-depth knowledge and understanding of both the characteristics of target )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(audience and the community in which the target audience resides, are needed for effective message development. Target )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(audience characteristics include knowledge, attitudes, perception, behavior, beliefs, values, needs and concerns, while )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(community characteristics include information about social networks, opinion leaders and community dynamics. Covello)] TJ ET 0.267 0.267 0.267 rg BT 541.547 496.484 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 26.250 483.072 Td /F1 9.8 Tf [(suggested several risk communication templates to utilize in the process of risk communication: 1\) CCO \(Compassion, )] TJ ET BT 26.250 471.167 Td /F1 9.8 Tf [(Conviction, Optimism\) template, which is particularly useful when responding to a question indicating a high level of emotion or )] TJ ET BT 26.250 459.262 Td /F1 9.8 Tf [(outrage)] TJ ET 0.267 0.267 0.267 rg BT 59.312 460.769 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 64.131 459.262 Td /F1 9.8 Tf [(. 2\) Primacy/Recency template)] TJ ET 0.267 0.267 0.267 rg BT 196.877 460.769 Td /F4 8.7 Tf [(35)] TJ ET 0.271 0.267 0.267 rg BT 206.515 459.262 Td /F1 9.8 Tf [( emphasizes the first and last messages in the communication due to the restriction of )] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(recall of information. 3\) 27/9/3 template states that the combination of the three key messages should equal a total of 27 words, )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(9 seconds spoken aloud, and 3 key messages)] TJ ET 0.267 0.267 0.267 rg BT 226.232 436.960 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 235.870 435.453 Td /F1 9.8 Tf [(. 4\) AGL-4 \(Average Grade Level minus 4\))] TJ ET 0.267 0.267 0.267 rg BT 419.023 436.960 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 423.842 435.453 Td /F1 9.8 Tf [( template recommends phrasing )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(the message at four reading grade levels below that of the stakeholder taking into account the national reading grade level. 5\) )] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(1N=3P \(Negative equals 3 positives\) template counterattacks the weight of negative messages by introducing three positive )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(messages for every negative message. 5\) TBC \(Trust, Benefits, Control\) template suggests to phrase three messages that are )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(phrased with specific order and content \(trust first, benefits second and control last\). These templates, however, were not )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(empirically tested and thus limit our certainty regarding effective messaging.)] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(The media plays a crucial role in shaping public response to terrorism and other disasters)] TJ ET 0.267 0.267 0.267 rg BT 411.521 358.031 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 421.159 356.524 Td /F1 9.8 Tf [(. Effective crisis communication )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(suggests the need of an unhindered but purposeful exchange of information within and between authorities, organizations, )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(media, involved individuals, and groups before, during, and after a crisis)] TJ ET 0.267 0.267 0.267 rg BT 336.222 334.222 Td /F4 8.7 Tf [(36)] TJ ET 0.271 0.267 0.267 rg BT 345.859 332.715 Td /F1 9.8 Tf [(. Covello et al.)] TJ ET 0.267 0.267 0.267 rg BT 407.635 334.222 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 417.273 332.715 Td /F1 9.8 Tf [( also argue that risk communication )] TJ ET BT 26.250 320.810 Td /F1 9.8 Tf [(is no longer a neglected topic within government. With the changing media environment and the developing online atmosphere, )] TJ ET BT 26.250 308.905 Td /F1 9.8 Tf [(traditional media are shifting to practices that are more adapt to a social media environment)] TJ ET 0.267 0.267 0.267 rg BT 420.755 310.412 Td /F4 8.7 Tf [(37)] TJ ET 0.271 0.267 0.267 rg BT 430.392 308.905 Td /F1 9.8 Tf [(. Furthermore, to improve )] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(services and communication with the population, government officials seek to leverage these new media channels. )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(Nevertheless, Graham, Avery & Park)] TJ ET 0.267 0.267 0.267 rg BT 186.091 286.603 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 195.729 285.096 Td /F1 9.8 Tf [( emphasize that governments engagement through social media should be more active )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(and reflect a clear response priority in crisis communication plans. Ambiguous or unreliable communications can cause damage )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(and serve to exacerbate publics mental health reactions and a delay in operational response and recovery)] TJ ET 0.267 0.267 0.267 rg BT 485.807 262.793 Td /F4 8.7 Tf [(38)] TJ ET 0.271 0.267 0.267 rg BT 495.444 261.286 Td /F1 9.8 Tf [(To conclude, it is )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(important to incorporate the use of citizen generated content into any crisis plan and learn to respond to the media and public )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(even quicker than before)] TJ ET 0.267 0.267 0.267 rg BT 133.558 238.984 Td /F4 8.7 Tf [(39)] TJ ET 0.271 0.267 0.267 rg BT 26.250 218.072 Td /F4 9.8 Tf [(Models and theories of Crisis Communication. )] TJ ET BT 244.046 218.072 Td /F1 9.8 Tf [(Over the years several models of crisis communication were developed)] TJ ET 0.267 0.267 0.267 rg BT 551.814 219.579 Td /F4 8.7 Tf [(40)] TJ ET 0.271 0.267 0.267 rg BT 561.451 218.072 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 206.167 Td /F1 9.8 Tf [(such as the Situational Crisis Communication Theory \(SCCT)] TJ ET 0.267 0.267 0.267 rg BT 287.404 207.674 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 297.041 206.167 Td /F1 9.8 Tf [(\). SCCT predicts the reputational threat presented by a crisis )] TJ ET BT 26.250 194.262 Td /F1 9.8 Tf [(prescribes crisis response strategies designed to protect reputational assets)] TJ ET 0.267 0.267 0.267 rg BT 357.341 195.770 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 366.978 194.262 Td /F1 9.8 Tf [(, especially in organizational context.)] TJ ET BT 26.250 174.858 Td /F1 9.8 Tf [(Chaos Theory)] TJ ET 0.267 0.267 0.267 rg BT 87.480 176.365 Td /F4 8.7 Tf [(42)] TJ ET 0.271 0.267 0.267 rg BT 97.117 174.858 Td /F1 9.8 Tf [( was described as a general framework for understanding crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 438.484 176.365 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 448.122 174.858 Td /F1 9.8 Tf [(. CT argues that chaos or )] TJ ET BT 26.250 162.953 Td /F1 9.8 Tf [(disorder may be the necessary precursor of a higher level of order. CT functions best at the broad level of a paradigm for )] TJ ET BT 26.250 151.048 Td /F1 9.8 Tf [(understanding the behavior of complex systems. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 269.571 152.555 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 279.208 151.048 Td /F1 9.8 Tf [( adds that in the context of CT, small variance in communication )] TJ ET BT 26.250 139.143 Td /F1 9.8 Tf [(processes, message phrasing, distribution, timing or other factors may produce extensive fluctuations in systems, leading to )] TJ ET BT 26.250 127.239 Td /F1 9.8 Tf [(bifurcation.)] TJ ET BT 26.250 107.834 Td /F1 9.8 Tf [(Reynolds & Seeger)] TJ ET 0.267 0.267 0.267 rg BT 110.246 109.341 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 119.884 107.834 Td /F1 9.8 Tf [( presented the Crisis and Emergency Risk Communication \(CERC\) five-stage integrative model. The )] TJ ET BT 26.250 95.929 Td /F1 9.8 Tf [(model blends crisis and risk communication together into a processes model \(see)] TJ ET 0.267 0.267 0.267 rg BT 377.377 97.436 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 387.014 95.929 Td /F1 9.8 Tf [(\), assuming that crises will develop and )] TJ ET BT 26.250 84.024 Td /F1 9.8 Tf [(progress in a predictable and systematic ways. According to the working model of CERC, communication processes occur )] TJ ET BT 26.250 72.120 Td /F1 9.8 Tf [(during five stages: 1\) Pre-crisis, 2\) Initial Event, 3\) Maintenance, 4\) Resolution and 5\) Evaluation. In each stage, communication )] TJ ET BT 26.250 60.215 Td /F1 9.8 Tf [(can have different aims, strategies and target audiences.)] TJ ET BT 26.250 40.810 Td /F1 9.8 Tf [(With the advancing new media, the social media aspect was integrated in these models. For instance, the Social Media )] TJ ET Q q 15.000 26.524 577.500 750.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(crisis situations that took place in 2012 were sampled from the available public twitter stream, and for each situation types of )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(information and sources of that information were examined. During crisis situation, eyewitnesses, government, NGOs, business, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(media & news organizations and outsiders participate and publish different information types in social media )] TJ ET 0.267 0.267 0.267 rg BT 494.455 745.174 Td /F4 8.7 Tf [(31)] TJ ET 0.271 0.267 0.267 rg BT 504.092 743.667 Td /F1 9.8 Tf [(. Types of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(information include data about affected individuals \(e.g. people trapped, casualties, people missing, found or seen\), )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(infrastructure & utilities \(e.g. damages, reports about environment, and availability of services\), donations & volunteer \(e.g. )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(donations of money, goods of services; requesting help; shelter needed, food shortage/distribution; volunteer information\); )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(caution & advice \(e.g. warnings, preparation; caution & advice; tips; safety\), sympathy & emotional support \(e.g. concerns and )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(condolences; gratitude, prayers; support; emotion-related info\) and other useful information \(e.g. flood level; weather, wind, )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(visibility; information verification\). Based on the available data of that study \(https://crisislex.org/tweet-collections.html\), it seems )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(that the Government, being the official source of information during crisis, was responsible for less than 5% of all published )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(information. Of the applicable information types, the majority \(32%\) of the communication efforts by the government were about )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(useful information \(32%\) and caution and advice \(27%\). Only 6% of the published tweets concerned about sympathy and )] TJ ET BT 26.250 624.619 Td /F1 9.8 Tf [(support.)] TJ ET BT 26.250 605.214 Td /F4 9.8 Tf [(Effective Crisis Communication.)] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(Seeger)] TJ ET 0.267 0.267 0.267 rg BT 57.684 587.317 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 67.321 585.810 Td /F1 9.8 Tf [( demonstrated ten best practices of crisis communication, drawn from a literature review and verified by expert crisis )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(communication panel that reached high consensus. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 282.587 575.412 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 292.225 573.905 Td /F1 9.8 Tf [( divides the recommendations into three broad categories: )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(strategic planning, proactive strategies and strategic response. These are used as principles or processes that underlie an )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(effective crisis communication plan and an effective crisis response.)] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(Covello, McCallum, & Pavlova)] TJ ET 0.267 0.267 0.267 rg BT 156.822 532.198 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 166.459 530.691 Td /F1 9.8 Tf [( note that detailed, in-depth knowledge and understanding of both the characteristics of target )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(audience and the community in which the target audience resides, are needed for effective message development. Target )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(audience characteristics include knowledge, attitudes, perception, behavior, beliefs, values, needs and concerns, while )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(community characteristics include information about social networks, opinion leaders and community dynamics. Covello)] TJ ET 0.267 0.267 0.267 rg BT 541.547 496.484 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 26.250 483.072 Td /F1 9.8 Tf [(suggested several risk communication templates to utilize in the process of risk communication: 1\) CCO \(Compassion, )] TJ ET BT 26.250 471.167 Td /F1 9.8 Tf [(Conviction, Optimism\) template, which is particularly useful when responding to a question indicating a high level of emotion or )] TJ ET BT 26.250 459.262 Td /F1 9.8 Tf [(outrage)] TJ ET 0.267 0.267 0.267 rg BT 59.312 460.769 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 64.131 459.262 Td /F1 9.8 Tf [(. 2\) Primacy/Recency template)] TJ ET 0.267 0.267 0.267 rg BT 196.877 460.769 Td /F4 8.7 Tf [(35)] TJ ET 0.271 0.267 0.267 rg BT 206.515 459.262 Td /F1 9.8 Tf [( emphasizes the first and last messages in the communication due to the restriction of )] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(recall of information. 3\) 27/9/3 template states that the combination of the three key messages should equal a total of 27 words, )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(9 seconds spoken aloud, and 3 key messages)] TJ ET 0.267 0.267 0.267 rg BT 226.232 436.960 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 235.870 435.453 Td /F1 9.8 Tf [(. 4\) AGL-4 \(Average Grade Level minus 4\))] TJ ET 0.267 0.267 0.267 rg BT 419.023 436.960 Td /F4 8.7 Tf [(4)] TJ ET 0.271 0.267 0.267 rg BT 423.842 435.453 Td /F1 9.8 Tf [( template recommends phrasing )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(the message at four reading grade levels below that of the stakeholder taking into account the national reading grade level. 5\) )] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(1N=3P \(Negative equals 3 positives\) template counterattacks the weight of negative messages by introducing three positive )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(messages for every negative message. 5\) TBC \(Trust, Benefits, Control\) template suggests to phrase three messages that are )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(phrased with specific order and content \(trust first, benefits second and control last\). These templates, however, were not )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(empirically tested and thus limit our certainty regarding effective messaging.)] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(The media plays a crucial role in shaping public response to terrorism and other disasters)] TJ ET 0.267 0.267 0.267 rg BT 411.521 358.031 Td /F4 8.7 Tf [(25)] TJ ET 0.271 0.267 0.267 rg BT 421.159 356.524 Td /F1 9.8 Tf [(. Effective crisis communication )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(suggests the need of an unhindered but purposeful exchange of information within and between authorities, organizations, )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(media, involved individuals, and groups before, during, and after a crisis)] TJ ET 0.267 0.267 0.267 rg BT 336.222 334.222 Td /F4 8.7 Tf [(36)] TJ ET 0.271 0.267 0.267 rg BT 345.859 332.715 Td /F1 9.8 Tf [(. Covello et al.)] TJ ET 0.267 0.267 0.267 rg BT 407.635 334.222 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 417.273 332.715 Td /F1 9.8 Tf [( also argue that risk communication )] TJ ET BT 26.250 320.810 Td /F1 9.8 Tf [(is no longer a neglected topic within government. With the changing media environment and the developing online atmosphere, )] TJ ET BT 26.250 308.905 Td /F1 9.8 Tf [(traditional media are shifting to practices that are more adapt to a social media environment)] TJ ET 0.267 0.267 0.267 rg BT 420.755 310.412 Td /F4 8.7 Tf [(37)] TJ ET 0.271 0.267 0.267 rg BT 430.392 308.905 Td /F1 9.8 Tf [(. Furthermore, to improve )] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(services and communication with the population, government officials seek to leverage these new media channels. )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(Nevertheless, Graham, Avery & Park)] TJ ET 0.267 0.267 0.267 rg BT 186.091 286.603 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 195.729 285.096 Td /F1 9.8 Tf [( emphasize that governments engagement through social media should be more active )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(and reflect a clear response priority in crisis communication plans. Ambiguous or unreliable communications can cause damage )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(and serve to exacerbate publics mental health reactions and a delay in operational response and recovery)] TJ ET 0.267 0.267 0.267 rg BT 485.807 262.793 Td /F4 8.7 Tf [(38)] TJ ET 0.271 0.267 0.267 rg BT 495.444 261.286 Td /F1 9.8 Tf [(To conclude, it is )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(important to incorporate the use of citizen generated content into any crisis plan and learn to respond to the media and public )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(even quicker than before)] TJ ET 0.267 0.267 0.267 rg BT 133.558 238.984 Td /F4 8.7 Tf [(39)] TJ ET 0.271 0.267 0.267 rg BT 26.250 218.072 Td /F4 9.8 Tf [(Models and theories of Crisis Communication. )] TJ ET BT 244.046 218.072 Td /F1 9.8 Tf [(Over the years several models of crisis communication were developed)] TJ ET 0.267 0.267 0.267 rg BT 551.814 219.579 Td /F4 8.7 Tf [(40)] TJ ET 0.271 0.267 0.267 rg BT 561.451 218.072 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 206.167 Td /F1 9.8 Tf [(such as the Situational Crisis Communication Theory \(SCCT)] TJ ET 0.267 0.267 0.267 rg BT 287.404 207.674 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 297.041 206.167 Td /F1 9.8 Tf [(\). SCCT predicts the reputational threat presented by a crisis )] TJ ET BT 26.250 194.262 Td /F1 9.8 Tf [(prescribes crisis response strategies designed to protect reputational assets)] TJ ET 0.267 0.267 0.267 rg BT 357.341 195.770 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 366.978 194.262 Td /F1 9.8 Tf [(, especially in organizational context.)] TJ ET BT 26.250 174.858 Td /F1 9.8 Tf [(Chaos Theory)] TJ ET 0.267 0.267 0.267 rg BT 87.480 176.365 Td /F4 8.7 Tf [(42)] TJ ET 0.271 0.267 0.267 rg BT 97.117 174.858 Td /F1 9.8 Tf [( was described as a general framework for understanding crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 438.484 176.365 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 448.122 174.858 Td /F1 9.8 Tf [(. CT argues that chaos or )] TJ ET BT 26.250 162.953 Td /F1 9.8 Tf [(disorder may be the necessary precursor of a higher level of order. CT functions best at the broad level of a paradigm for )] TJ ET BT 26.250 151.048 Td /F1 9.8 Tf [(understanding the behavior of complex systems. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 269.571 152.555 Td /F4 8.7 Tf [(43)] TJ ET 0.271 0.267 0.267 rg BT 279.208 151.048 Td /F1 9.8 Tf [( adds that in the context of CT, small variance in communication )] TJ ET BT 26.250 139.143 Td /F1 9.8 Tf [(processes, message phrasing, distribution, timing or other factors may produce extensive fluctuations in systems, leading to )] TJ ET BT 26.250 127.239 Td /F1 9.8 Tf [(bifurcation.)] TJ ET BT 26.250 107.834 Td /F1 9.8 Tf [(Reynolds & Seeger)] TJ ET 0.267 0.267 0.267 rg BT 110.246 109.341 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 119.884 107.834 Td /F1 9.8 Tf [( presented the Crisis and Emergency Risk Communication \(CERC\) five-stage integrative model. The )] TJ ET BT 26.250 95.929 Td /F1 9.8 Tf [(model blends crisis and risk communication together into a processes model \(see)] TJ ET 0.267 0.267 0.267 rg BT 377.377 97.436 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 387.014 95.929 Td /F1 9.8 Tf [(\), assuming that crises will develop and )] TJ ET BT 26.250 84.024 Td /F1 9.8 Tf [(progress in a predictable and systematic ways. According to the working model of CERC, communication processes occur )] TJ ET BT 26.250 72.120 Td /F1 9.8 Tf [(during five stages: 1\) Pre-crisis, 2\) Initial Event, 3\) Maintenance, 4\) Resolution and 5\) Evaluation. In each stage, communication )] TJ ET BT 26.250 60.215 Td /F1 9.8 Tf [(can have different aims, strategies and target audiences.)] TJ ET BT 26.250 40.810 Td /F1 9.8 Tf [(With the advancing new media, the social media aspect was integrated in these models. For instance, the Social Media )] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(3)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 264 0 obj << /Type /Annot /Subtype /Link /A 265 0 R /Border [0 0 0] /H /I /Rect [ 494.4547 744.3722 504.0921 753.1905 ] >> endobj 265 0 obj << /Type /Action >> endobj 266 0 obj << /Type /Annot /Subtype /Link /A 267 0 R /Border [0 0 0] /H /I /Rect [ 57.6840 586.5152 67.3213 595.3335 ] >> endobj 267 0 obj << /Type /Action >> endobj 268 0 obj << /Type /Annot /Subtype /Link /A 269 0 R /Border [0 0 0] /H /I /Rect [ 282.5872 574.6104 292.2246 583.4287 ] >> endobj 269 0 obj << /Type /Action >> endobj 270 0 obj << /Type /Annot /Subtype /Link /A 271 0 R /Border [0 0 0] /H /I /Rect [ 156.8220 531.3962 166.4593 540.2145 ] >> endobj 271 0 obj << /Type /Action >> endobj 272 0 obj << /Type /Annot /Subtype /Link /A 273 0 R /Border [0 0 0] /H /I /Rect [ 541.5472 495.6819 551.1846 504.5002 ] >> endobj 273 0 obj 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Model \(SMA\))] TJ ET 0.267 0.267 0.267 rg BT 166.046 768.983 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 175.683 767.476 Td /F1 9.8 Tf [( aims to increase the reach for messages disseminated via a given social media platform in )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(the context of an emergency. Social mediated crisis communication model \(SCCM\))] TJ ET 0.267 0.267 0.267 rg BT 384.406 757.079 Td /F4 8.7 Tf [(44)] TJ ET 0.271 0.267 0.267 rg BT 394.044 755.571 Td /F1 9.8 Tf [( is another model that serves as a )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(framework for crisis communication management in the changing media landscape and explains how the source and form of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(crisis information affect organizations response options and provides recommended social-mediated crisis response strategies. )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(The Networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 214.796 721.364 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 224.433 719.857 Td /F1 9.8 Tf [( examines the influence of communication strategy and media type on damage to )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(reputation, as well as secondary crisis communication and secondary crisis reactions. Although these models recognize new )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(players in the crisis communication processes \(e.g. influential social media creators, follower, and the growing empirical )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(evidence that emphasizes the psychological functions of social media during emergency management during most of the )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(time, less or no consideration is given to psychosocial aspects during crisis communication. The need to focus on other )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(participants \(such as the public\) rather than the organization or the responding authority, is echoed in Liu & Fraustino)] TJ ET 0.267 0.267 0.267 rg BT 529.701 661.841 Td /F4 8.7 Tf [(46)] TJ ET 0.271 0.267 0.267 rg BT 539.338 660.333 Td /F1 9.8 Tf [( who )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(suggests that scholars should move beyond predominantly focusing on image management, emphasized by dominant crisis )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(communication theories)] TJ ET BT 26.250 617.119 Td /F4 9.8 Tf [(Accommodated Communication)] TJ ET BT 26.250 597.714 Td /F1 9.8 Tf [(Considerable research, using text derived from social interactions, such as natural conversations and social media )] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(conversations, suggests that individuals tend to converge in various dimensions such as posture, pause length, utterance )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(length, self-disclosure, head nodding, backchannels and linguistic style)] TJ ET 0.267 0.267 0.267 rg BT 331.893 575.412 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 341.530 573.905 Td /F1 9.8 Tf [(. Niederhoffer & Pennebaker)] TJ ET 0.267 0.267 0.267 rg BT 465.092 575.412 Td /F4 8.7 Tf [(48)] TJ ET 0.271 0.267 0.267 rg BT 474.729 573.905 Td /F1 9.8 Tf [( studied psychometric )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(properties of language in dyadic interactions and assessed the degree to which people coordinate their word use in natural )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(conversations, derived from internet chat and laboratory conversations. Based on a text-analysis software, they found that )] TJ ET BT 26.250 538.191 Td /F1 9.8 Tf [(individuals in dyadic interactions exhibited linguistic style matching \(LSM\) on both the conversation level as well as on a turn-by-)] TJ ET BT 26.250 526.286 Td /F1 9.8 Tf [(turn level. LSM found in research to be a predictor of social dynamics in small online and face-to-face groups)] TJ ET 0.267 0.267 0.267 rg BT 494.991 527.793 Td /F4 8.7 Tf [(49)] TJ ET 0.271 0.267 0.267 rg BT 504.628 526.286 Td /F1 9.8 Tf [(. LSM, also )] TJ ET BT 26.250 514.381 Td /F1 9.8 Tf [(found to be a robust marker for romantic relationship stability, stressing the importance of similarity in the way people converse )] TJ ET BT 26.250 502.476 Td /F1 9.8 Tf [(with each other in the context of interpersonal processes)] TJ ET 0.267 0.267 0.267 rg BT 270.117 503.984 Td /F4 8.7 Tf [(50)] TJ ET 0.271 0.267 0.267 rg BT 279.754 502.476 Td /F1 9.8 Tf [(. Lord, Sheng, Imel, Baer & Atkins)] TJ ET 0.267 0.267 0.267 rg BT 426.619 503.984 Td /F4 8.7 Tf [(51)] TJ ET 0.271 0.267 0.267 rg BT 436.256 502.476 Td /F1 9.8 Tf [( saw thats language style )] TJ ET BT 26.250 490.572 Td /F1 9.8 Tf [(synchrony between client and therapist was predictive of empathy ratings during evidence-based behavioral treatments like )] TJ ET BT 26.250 478.667 Td /F1 9.8 Tf [(motivational interviewing \(MI\). Therefore, it is apparent that synchronized verbal behavior holds an important role in various )] TJ ET BT 26.250 466.762 Td /F1 9.8 Tf [(interpersonal interactions.)] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(LSM, in fact is a derivative of Communication \(or speech\) Accommodation Theory \(CAT\), an intergroup theory of interpersonal )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(communication, provides a framework for understanding how and why people adapt their communication toward and away from )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(others and the social consequences of doing so. The theory holds that people tend to preform accommodative and non-)] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(accommodative moves, to reduce or increase significant social distances between the speakers, depending on the different )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(circumstances. Convergence and divergence, called in the CAT approximation strategies, include the adaptation \(or the )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(alteration\) of communicative behaviors in terms of wide range of linguistic-prosodic-nonverbal features. The theory also )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(proposes different patterns of accommodation \(upward vs. downward, and symmetrical or asymmetrical\), based on the )] TJ ET BT 26.250 364.024 Td /F1 9.8 Tf [(reciprocity of the speakers)] TJ ET 0.267 0.267 0.267 rg BT 140.042 365.531 Td /F4 8.7 Tf [(52)] TJ ET 0.271 0.267 0.267 rg BT 149.680 364.024 Td /F1 9.8 Tf [(. During the last years, examination of CAT progressed to the domain of electronic communication, )] TJ ET BT 26.250 352.119 Td /F1 9.8 Tf [(such as e-mail, text messages, voice mail and recently also was adapted to electronic communications and the social media )] TJ ET BT 26.250 340.215 Td /F1 9.8 Tf [(sphere. Danescu-Niculescu-Mizil et al.)] TJ ET 0.267 0.267 0.267 rg BT 192.039 341.722 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 201.676 340.215 Td /F1 9.8 Tf [( examined and verified the hypothesis of accommodated communication in the context )] TJ ET BT 26.250 328.310 Td /F1 9.8 Tf [(of twitter conversations. The researchers developed a probabilistic framework that enabled to model accommodation and )] TJ ET BT 26.250 316.405 Td /F1 9.8 Tf [(measure its effects. They focused on linguistic style feature, derived from the Linguistic Inquiry and Word Count)] TJ ET 0.267 0.267 0.267 rg BT 506.369 317.912 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 516.007 316.405 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(To the best of our knowledge, CAT was never integrated in any crisis communication models published in the academic )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(literature. The closest domain LSM, was mainly researched in the context of crisis negotiations of suicidal and surrender )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(outcomes, and hostage taking negotiation outcomes)] TJ ET 0.267 0.267 0.267 rg BT 251.709 274.698 Td /F4 8.7 Tf [(54)] TJ ET 0.271 0.267 0.267 rg BT 261.346 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.756 274.698 Td /F4 8.7 Tf [(55)] TJ ET 0.271 0.267 0.267 rg BT 273.393 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 275.802 274.698 Td /F4 8.7 Tf [(56)] TJ ET 0.271 0.267 0.267 rg BT 285.440 273.191 Td /F1 9.8 Tf [(. In these studies, the researchers analyzed the correlations )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(between the linguistic behavior of each communicator across 18 linguistic dimensions, like word count, prepositions, negations, )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(emotionally toned words and others. LSM was assessed by the strength of the correlation and averaged across all )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(conversations taken into account. The studies showed that negotiators \(police officers and hostage takers\) tended to show )] TJ ET BT 26.250 225.572 Td /F1 9.8 Tf [(greater levels of linguistic style matching in successful negotiations compared to unsuccessful negotiations)] TJ ET 0.267 0.267 0.267 rg BT 485.777 227.079 Td /F4 8.7 Tf [(57)] TJ ET 0.271 0.267 0.267 rg BT 495.415 225.572 Td /F1 9.8 Tf [(, and an overall )] TJ ET BT 26.250 213.667 Td /F1 9.8 Tf [(consistency in the linguistic behavior of subjects and police negotiators in surrender and suicide incidents)] TJ ET 0.267 0.267 0.267 rg BT 479.284 215.174 Td /F4 8.7 Tf [(54)] TJ ET 0.271 0.267 0.267 rg BT 488.921 213.667 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 194.262 Td /F1 9.8 Tf [(Interestingly, linguistic matching or accommodated communication is not emphasized in the processes models of crisis and risk )] TJ ET BT 26.250 182.358 Td /F1 9.8 Tf [(communication, and possibly is taken for granted. Even when a certain aspect that is related to crisis communication with the )] TJ ET BT 26.250 170.453 Td /F1 9.8 Tf [(public is presented, such as crisis communication strategies from the Situational Crisis Communication Theory)] TJ ET 0.267 0.267 0.267 rg BT 501.982 171.960 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 511.619 170.453 Td /F1 9.8 Tf [(, linguistic )] TJ ET BT 26.250 158.548 Td /F1 9.8 Tf [(features and linguistic accommodation are not explicitly mentioned as being part of the processes. Some research considered )] TJ ET BT 26.250 146.643 Td /F1 9.8 Tf [(other aspects like number of words, number of sentences and words per sentence)] TJ ET 0.267 0.267 0.267 rg BT 380.663 148.151 Td /F4 8.7 Tf [(58)] TJ ET 0.271 0.267 0.267 rg BT 390.300 146.643 Td /F1 9.8 Tf [(. In other words, when a crisis )] TJ ET BT 26.250 134.739 Td /F1 9.8 Tf [(communication model, like the networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 327.505 136.246 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 337.143 134.739 Td /F1 9.8 Tf [( and social-mediated crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 549.537 136.246 Td /F4 8.7 Tf [(59)] TJ ET 0.271 0.267 0.267 rg BT 559.174 134.739 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 122.834 Td /F1 9.8 Tf [(mentions elements like message form or message strategy, it ignores the linguistic characteristics of the message. The best )] TJ ET BT 26.250 110.929 Td /F1 9.8 Tf [(practices in crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 168.737 112.436 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 178.374 110.929 Td /F1 9.8 Tf [( introduce general principles of crisis communication, such as strategic planning, proactive )] TJ ET BT 26.250 99.024 Td /F1 9.8 Tf [(strategies & strategic response, and each include sub categories that can be directly related to public communication, e.g be )] TJ ET BT 26.250 87.120 Td /F1 9.8 Tf [(open and honest, communicate compassion and provide self-efficacy. Since speakers verbal style also influences how )] TJ ET BT 26.250 75.215 Td /F1 9.8 Tf [(messages are perceived)] TJ ET 0.267 0.267 0.267 rg BT 132.457 76.722 Td /F4 8.7 Tf [(60)] TJ ET 0.271 0.267 0.267 rg BT 142.094 75.215 Td /F1 9.8 Tf [(, we suggest that even if crisis managers will act according to these principles, they should employ )] TJ ET BT 26.250 63.310 Td /F1 9.8 Tf [(certain linguistic styles and consider delivering messages in public accommodated language)] TJ ET Q q 15.000 34.024 577.500 742.976 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Audience Sharing Model \(SMA\))] TJ ET 0.267 0.267 0.267 rg BT 166.046 768.983 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 175.683 767.476 Td /F1 9.8 Tf [( aims to increase the reach for messages disseminated via a given social media platform in )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(the context of an emergency. Social mediated crisis communication model \(SCCM\))] TJ ET 0.267 0.267 0.267 rg BT 384.406 757.079 Td /F4 8.7 Tf [(44)] TJ ET 0.271 0.267 0.267 rg BT 394.044 755.571 Td /F1 9.8 Tf [( is another model that serves as a )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(framework for crisis communication management in the changing media landscape and explains how the source and form of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(crisis information affect organizations response options and provides recommended social-mediated crisis response strategies. )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(The Networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 214.796 721.364 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 224.433 719.857 Td /F1 9.8 Tf [( examines the influence of communication strategy and media type on damage to )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(reputation, as well as secondary crisis communication and secondary crisis reactions. Although these models recognize new )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(players in the crisis communication processes \(e.g. influential social media creators, follower, and the growing empirical )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(evidence that emphasizes the psychological functions of social media during emergency management during most of the )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(time, less or no consideration is given to psychosocial aspects during crisis communication. The need to focus on other )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(participants \(such as the public\) rather than the organization or the responding authority, is echoed in Liu & Fraustino)] TJ ET 0.267 0.267 0.267 rg BT 529.701 661.841 Td /F4 8.7 Tf [(46)] TJ ET 0.271 0.267 0.267 rg BT 539.338 660.333 Td /F1 9.8 Tf [( who )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(suggests that scholars should move beyond predominantly focusing on image management, emphasized by dominant crisis )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(communication theories)] TJ ET BT 26.250 617.119 Td /F4 9.8 Tf [(Accommodated Communication)] TJ ET BT 26.250 597.714 Td /F1 9.8 Tf [(Considerable research, using text derived from social interactions, such as natural conversations and social media )] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(conversations, suggests that individuals tend to converge in various dimensions such as posture, pause length, utterance )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(length, self-disclosure, head nodding, backchannels and linguistic style)] TJ ET 0.267 0.267 0.267 rg BT 331.893 575.412 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 341.530 573.905 Td /F1 9.8 Tf [(. Niederhoffer & Pennebaker)] TJ ET 0.267 0.267 0.267 rg BT 465.092 575.412 Td /F4 8.7 Tf [(48)] TJ ET 0.271 0.267 0.267 rg BT 474.729 573.905 Td /F1 9.8 Tf [( studied psychometric )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(properties of language in dyadic interactions and assessed the degree to which people coordinate their word use in natural )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(conversations, derived from internet chat and laboratory conversations. Based on a text-analysis software, they found that )] TJ ET BT 26.250 538.191 Td /F1 9.8 Tf [(individuals in dyadic interactions exhibited linguistic style matching \(LSM\) on both the conversation level as well as on a turn-by-)] TJ ET BT 26.250 526.286 Td /F1 9.8 Tf [(turn level. LSM found in research to be a predictor of social dynamics in small online and face-to-face groups)] TJ ET 0.267 0.267 0.267 rg BT 494.991 527.793 Td /F4 8.7 Tf [(49)] TJ ET 0.271 0.267 0.267 rg BT 504.628 526.286 Td /F1 9.8 Tf [(. LSM, also )] TJ ET BT 26.250 514.381 Td /F1 9.8 Tf [(found to be a robust marker for romantic relationship stability, stressing the importance of similarity in the way people converse )] TJ ET BT 26.250 502.476 Td /F1 9.8 Tf [(with each other in the context of interpersonal processes)] TJ ET 0.267 0.267 0.267 rg BT 270.117 503.984 Td /F4 8.7 Tf [(50)] TJ ET 0.271 0.267 0.267 rg BT 279.754 502.476 Td /F1 9.8 Tf [(. Lord, Sheng, Imel, Baer & Atkins)] TJ ET 0.267 0.267 0.267 rg BT 426.619 503.984 Td /F4 8.7 Tf [(51)] TJ ET 0.271 0.267 0.267 rg BT 436.256 502.476 Td /F1 9.8 Tf [( saw thats language style )] TJ ET BT 26.250 490.572 Td /F1 9.8 Tf [(synchrony between client and therapist was predictive of empathy ratings during evidence-based behavioral treatments like )] TJ ET BT 26.250 478.667 Td /F1 9.8 Tf [(motivational interviewing \(MI\). Therefore, it is apparent that synchronized verbal behavior holds an important role in various )] TJ ET BT 26.250 466.762 Td /F1 9.8 Tf [(interpersonal interactions.)] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(LSM, in fact is a derivative of Communication \(or speech\) Accommodation Theory \(CAT\), an intergroup theory of interpersonal )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(communication, provides a framework for understanding how and why people adapt their communication toward and away from )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(others and the social consequences of doing so. The theory holds that people tend to preform accommodative and non-)] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(accommodative moves, to reduce or increase significant social distances between the speakers, depending on the different )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(circumstances. Convergence and divergence, called in the CAT approximation strategies, include the adaptation \(or the )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(alteration\) of communicative behaviors in terms of wide range of linguistic-prosodic-nonverbal features. The theory also )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(proposes different patterns of accommodation \(upward vs. downward, and symmetrical or asymmetrical\), based on the )] TJ ET BT 26.250 364.024 Td /F1 9.8 Tf [(reciprocity of the speakers)] TJ ET 0.267 0.267 0.267 rg BT 140.042 365.531 Td /F4 8.7 Tf [(52)] TJ ET 0.271 0.267 0.267 rg BT 149.680 364.024 Td /F1 9.8 Tf [(. During the last years, examination of CAT progressed to the domain of electronic communication, )] TJ ET BT 26.250 352.119 Td /F1 9.8 Tf [(such as e-mail, text messages, voice mail and recently also was adapted to electronic communications and the social media )] TJ ET BT 26.250 340.215 Td /F1 9.8 Tf [(sphere. Danescu-Niculescu-Mizil et al.)] TJ ET 0.267 0.267 0.267 rg BT 192.039 341.722 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 201.676 340.215 Td /F1 9.8 Tf [( examined and verified the hypothesis of accommodated communication in the context )] TJ ET BT 26.250 328.310 Td /F1 9.8 Tf [(of twitter conversations. The researchers developed a probabilistic framework that enabled to model accommodation and )] TJ ET BT 26.250 316.405 Td /F1 9.8 Tf [(measure its effects. They focused on linguistic style feature, derived from the Linguistic Inquiry and Word Count)] TJ ET 0.267 0.267 0.267 rg BT 506.369 317.912 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 516.007 316.405 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(To the best of our knowledge, CAT was never integrated in any crisis communication models published in the academic )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(literature. The closest domain LSM, was mainly researched in the context of crisis negotiations of suicidal and surrender )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(outcomes, and hostage taking negotiation outcomes)] TJ ET 0.267 0.267 0.267 rg BT 251.709 274.698 Td /F4 8.7 Tf [(54)] TJ ET 0.271 0.267 0.267 rg BT 261.346 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.756 274.698 Td /F4 8.7 Tf [(55)] TJ ET 0.271 0.267 0.267 rg BT 273.393 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 275.802 274.698 Td /F4 8.7 Tf [(56)] TJ ET 0.271 0.267 0.267 rg BT 285.440 273.191 Td /F1 9.8 Tf [(. In these studies, the researchers analyzed the correlations )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(between the linguistic behavior of each communicator across 18 linguistic dimensions, like word count, prepositions, negations, )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(emotionally toned words and others. LSM was assessed by the strength of the correlation and averaged across all )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(conversations taken into account. The studies showed that negotiators \(police officers and hostage takers\) tended to show )] TJ ET BT 26.250 225.572 Td /F1 9.8 Tf [(greater levels of linguistic style matching in successful negotiations compared to unsuccessful negotiations)] TJ ET 0.267 0.267 0.267 rg BT 485.777 227.079 Td /F4 8.7 Tf [(57)] TJ ET 0.271 0.267 0.267 rg BT 495.415 225.572 Td /F1 9.8 Tf [(, and an overall )] TJ ET BT 26.250 213.667 Td /F1 9.8 Tf [(consistency in the linguistic behavior of subjects and police negotiators in surrender and suicide incidents)] TJ ET 0.267 0.267 0.267 rg BT 479.284 215.174 Td /F4 8.7 Tf [(54)] TJ ET 0.271 0.267 0.267 rg BT 488.921 213.667 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 194.262 Td /F1 9.8 Tf [(Interestingly, linguistic matching or accommodated communication is not emphasized in the processes models of crisis and risk )] TJ ET BT 26.250 182.358 Td /F1 9.8 Tf [(communication, and possibly is taken for granted. Even when a certain aspect that is related to crisis communication with the )] TJ ET BT 26.250 170.453 Td /F1 9.8 Tf [(public is presented, such as crisis communication strategies from the Situational Crisis Communication Theory)] TJ ET 0.267 0.267 0.267 rg BT 501.982 171.960 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 511.619 170.453 Td /F1 9.8 Tf [(, linguistic )] TJ ET BT 26.250 158.548 Td /F1 9.8 Tf [(features and linguistic accommodation are not explicitly mentioned as being part of the processes. Some research considered )] TJ ET BT 26.250 146.643 Td /F1 9.8 Tf [(other aspects like number of words, number of sentences and words per sentence)] TJ ET 0.267 0.267 0.267 rg BT 380.663 148.151 Td /F4 8.7 Tf [(58)] TJ ET 0.271 0.267 0.267 rg BT 390.300 146.643 Td /F1 9.8 Tf [(. In other words, when a crisis )] TJ ET BT 26.250 134.739 Td /F1 9.8 Tf [(communication model, like the networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 327.505 136.246 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 337.143 134.739 Td /F1 9.8 Tf [( and social-mediated crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 549.537 136.246 Td /F4 8.7 Tf [(59)] TJ ET 0.271 0.267 0.267 rg BT 559.174 134.739 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 122.834 Td /F1 9.8 Tf [(mentions elements like message form or message strategy, it ignores the linguistic characteristics of the message. The best )] TJ ET BT 26.250 110.929 Td /F1 9.8 Tf [(practices in crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 168.737 112.436 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 178.374 110.929 Td /F1 9.8 Tf [( introduce general principles of crisis communication, such as strategic planning, proactive )] TJ ET BT 26.250 99.024 Td /F1 9.8 Tf [(strategies & strategic response, and each include sub categories that can be directly related to public communication, e.g be )] TJ ET BT 26.250 87.120 Td /F1 9.8 Tf [(open and honest, communicate compassion and provide self-efficacy. Since speakers verbal style also influences how )] TJ ET BT 26.250 75.215 Td /F1 9.8 Tf [(messages are perceived)] TJ ET 0.267 0.267 0.267 rg BT 132.457 76.722 Td /F4 8.7 Tf [(60)] TJ ET 0.271 0.267 0.267 rg BT 142.094 75.215 Td /F1 9.8 Tf [(, we suggest that even if crisis managers will act according to these principles, they should employ )] TJ ET BT 26.250 63.310 Td /F1 9.8 Tf [(certain linguistic styles and consider delivering messages in public accommodated language)] TJ ET Q q 15.000 34.024 577.500 742.976 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Audience Sharing Model \(SMA\))] TJ ET 0.267 0.267 0.267 rg BT 166.046 768.983 Td /F4 8.7 Tf [(24)] TJ ET 0.271 0.267 0.267 rg BT 175.683 767.476 Td /F1 9.8 Tf [( aims to increase the reach for messages disseminated via a given social media platform in )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(the context of an emergency. Social mediated crisis communication model \(SCCM\))] TJ ET 0.267 0.267 0.267 rg BT 384.406 757.079 Td /F4 8.7 Tf [(44)] TJ ET 0.271 0.267 0.267 rg BT 394.044 755.571 Td /F1 9.8 Tf [( is another model that serves as a )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(framework for crisis communication management in the changing media landscape and explains how the source and form of )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(crisis information affect organizations response options and provides recommended social-mediated crisis response strategies. )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(The Networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 214.796 721.364 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 224.433 719.857 Td /F1 9.8 Tf [( examines the influence of communication strategy and media type on damage to )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(reputation, as well as secondary crisis communication and secondary crisis reactions. Although these models recognize new )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(players in the crisis communication processes \(e.g. influential social media creators, follower, and the growing empirical )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(evidence that emphasizes the psychological functions of social media during emergency management during most of the )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(time, less or no consideration is given to psychosocial aspects during crisis communication. The need to focus on other )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(participants \(such as the public\) rather than the organization or the responding authority, is echoed in Liu & Fraustino)] TJ ET 0.267 0.267 0.267 rg BT 529.701 661.841 Td /F4 8.7 Tf [(46)] TJ ET 0.271 0.267 0.267 rg BT 539.338 660.333 Td /F1 9.8 Tf [( who )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(suggests that scholars should move beyond predominantly focusing on image management, emphasized by dominant crisis )] TJ ET BT 26.250 636.524 Td /F1 9.8 Tf [(communication theories)] TJ ET BT 26.250 617.119 Td /F4 9.8 Tf [(Accommodated Communication)] TJ ET BT 26.250 597.714 Td /F1 9.8 Tf [(Considerable research, using text derived from social interactions, such as natural conversations and social media )] TJ ET BT 26.250 585.810 Td /F1 9.8 Tf [(conversations, suggests that individuals tend to converge in various dimensions such as posture, pause length, utterance )] TJ ET BT 26.250 573.905 Td /F1 9.8 Tf [(length, self-disclosure, head nodding, backchannels and linguistic style)] TJ ET 0.267 0.267 0.267 rg BT 331.893 575.412 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 341.530 573.905 Td /F1 9.8 Tf [(. Niederhoffer & Pennebaker)] TJ ET 0.267 0.267 0.267 rg BT 465.092 575.412 Td /F4 8.7 Tf [(48)] TJ ET 0.271 0.267 0.267 rg BT 474.729 573.905 Td /F1 9.8 Tf [( studied psychometric )] TJ ET BT 26.250 562.000 Td /F1 9.8 Tf [(properties of language in dyadic interactions and assessed the degree to which people coordinate their word use in natural )] TJ ET BT 26.250 550.095 Td /F1 9.8 Tf [(conversations, derived from internet chat and laboratory conversations. Based on a text-analysis software, they found that )] TJ ET BT 26.250 538.191 Td /F1 9.8 Tf [(individuals in dyadic interactions exhibited linguistic style matching \(LSM\) on both the conversation level as well as on a turn-by-)] TJ ET BT 26.250 526.286 Td /F1 9.8 Tf [(turn level. LSM found in research to be a predictor of social dynamics in small online and face-to-face groups)] TJ ET 0.267 0.267 0.267 rg BT 494.991 527.793 Td /F4 8.7 Tf [(49)] TJ ET 0.271 0.267 0.267 rg BT 504.628 526.286 Td /F1 9.8 Tf [(. LSM, also )] TJ ET BT 26.250 514.381 Td /F1 9.8 Tf [(found to be a robust marker for romantic relationship stability, stressing the importance of similarity in the way people converse )] TJ ET BT 26.250 502.476 Td /F1 9.8 Tf [(with each other in the context of interpersonal processes)] TJ ET 0.267 0.267 0.267 rg BT 270.117 503.984 Td /F4 8.7 Tf [(50)] TJ ET 0.271 0.267 0.267 rg BT 279.754 502.476 Td /F1 9.8 Tf [(. Lord, Sheng, Imel, Baer & Atkins)] TJ ET 0.267 0.267 0.267 rg BT 426.619 503.984 Td /F4 8.7 Tf [(51)] TJ ET 0.271 0.267 0.267 rg BT 436.256 502.476 Td /F1 9.8 Tf [( saw thats language style )] TJ ET BT 26.250 490.572 Td /F1 9.8 Tf [(synchrony between client and therapist was predictive of empathy ratings during evidence-based behavioral treatments like )] TJ ET BT 26.250 478.667 Td /F1 9.8 Tf [(motivational interviewing \(MI\). Therefore, it is apparent that synchronized verbal behavior holds an important role in various )] TJ ET BT 26.250 466.762 Td /F1 9.8 Tf [(interpersonal interactions.)] TJ ET BT 26.250 447.357 Td /F1 9.8 Tf [(LSM, in fact is a derivative of Communication \(or speech\) Accommodation Theory \(CAT\), an intergroup theory of interpersonal )] TJ ET BT 26.250 435.453 Td /F1 9.8 Tf [(communication, provides a framework for understanding how and why people adapt their communication toward and away from )] TJ ET BT 26.250 423.548 Td /F1 9.8 Tf [(others and the social consequences of doing so. The theory holds that people tend to preform accommodative and non-)] TJ ET BT 26.250 411.643 Td /F1 9.8 Tf [(accommodative moves, to reduce or increase significant social distances between the speakers, depending on the different )] TJ ET BT 26.250 399.738 Td /F1 9.8 Tf [(circumstances. Convergence and divergence, called in the CAT approximation strategies, include the adaptation \(or the )] TJ ET BT 26.250 387.834 Td /F1 9.8 Tf [(alteration\) of communicative behaviors in terms of wide range of linguistic-prosodic-nonverbal features. The theory also )] TJ ET BT 26.250 375.929 Td /F1 9.8 Tf [(proposes different patterns of accommodation \(upward vs. downward, and symmetrical or asymmetrical\), based on the )] TJ ET BT 26.250 364.024 Td /F1 9.8 Tf [(reciprocity of the speakers)] TJ ET 0.267 0.267 0.267 rg BT 140.042 365.531 Td /F4 8.7 Tf [(52)] TJ ET 0.271 0.267 0.267 rg BT 149.680 364.024 Td /F1 9.8 Tf [(. During the last years, examination of CAT progressed to the domain of electronic communication, )] TJ ET BT 26.250 352.119 Td /F1 9.8 Tf [(such as e-mail, text messages, voice mail and recently also was adapted to electronic communications and the social media )] TJ ET BT 26.250 340.215 Td /F1 9.8 Tf [(sphere. Danescu-Niculescu-Mizil et al.)] TJ ET 0.267 0.267 0.267 rg BT 192.039 341.722 Td /F4 8.7 Tf [(47)] TJ ET 0.271 0.267 0.267 rg BT 201.676 340.215 Td /F1 9.8 Tf [( examined and verified the hypothesis of accommodated communication in the context )] TJ ET BT 26.250 328.310 Td /F1 9.8 Tf [(of twitter conversations. The researchers developed a probabilistic framework that enabled to model accommodation and )] TJ ET BT 26.250 316.405 Td /F1 9.8 Tf [(measure its effects. They focused on linguistic style feature, derived from the Linguistic Inquiry and Word Count)] TJ ET 0.267 0.267 0.267 rg BT 506.369 317.912 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 516.007 316.405 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 297.000 Td /F1 9.8 Tf [(To the best of our knowledge, CAT was never integrated in any crisis communication models published in the academic )] TJ ET BT 26.250 285.096 Td /F1 9.8 Tf [(literature. The closest domain LSM, was mainly researched in the context of crisis negotiations of suicidal and surrender )] TJ ET BT 26.250 273.191 Td /F1 9.8 Tf [(outcomes, and hostage taking negotiation outcomes)] TJ ET 0.267 0.267 0.267 rg BT 251.709 274.698 Td /F4 8.7 Tf [(54)] TJ ET 0.271 0.267 0.267 rg BT 261.346 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.756 274.698 Td /F4 8.7 Tf [(55)] TJ ET 0.271 0.267 0.267 rg BT 273.393 277.079 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 275.802 274.698 Td /F4 8.7 Tf [(56)] TJ ET 0.271 0.267 0.267 rg BT 285.440 273.191 Td /F1 9.8 Tf [(. In these studies, the researchers analyzed the correlations )] TJ ET BT 26.250 261.286 Td /F1 9.8 Tf [(between the linguistic behavior of each communicator across 18 linguistic dimensions, like word count, prepositions, negations, )] TJ ET BT 26.250 249.381 Td /F1 9.8 Tf [(emotionally toned words and others. LSM was assessed by the strength of the correlation and averaged across all )] TJ ET BT 26.250 237.477 Td /F1 9.8 Tf [(conversations taken into account. 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Even when a certain aspect that is related to crisis communication with the )] TJ ET BT 26.250 170.453 Td /F1 9.8 Tf [(public is presented, such as crisis communication strategies from the Situational Crisis Communication Theory)] TJ ET 0.267 0.267 0.267 rg BT 501.982 171.960 Td /F4 8.7 Tf [(41)] TJ ET 0.271 0.267 0.267 rg BT 511.619 170.453 Td /F1 9.8 Tf [(, linguistic )] TJ ET BT 26.250 158.548 Td /F1 9.8 Tf [(features and linguistic accommodation are not explicitly mentioned as being part of the processes. Some research considered )] TJ ET BT 26.250 146.643 Td /F1 9.8 Tf [(other aspects like number of words, number of sentences and words per sentence)] TJ ET 0.267 0.267 0.267 rg BT 380.663 148.151 Td /F4 8.7 Tf [(58)] TJ ET 0.271 0.267 0.267 rg BT 390.300 146.643 Td /F1 9.8 Tf [(. In other words, when a crisis )] TJ ET BT 26.250 134.739 Td /F1 9.8 Tf [(communication model, like the networked crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 327.505 136.246 Td /F4 8.7 Tf [(45)] TJ ET 0.271 0.267 0.267 rg BT 337.143 134.739 Td /F1 9.8 Tf [( and social-mediated crisis communication model)] TJ ET 0.267 0.267 0.267 rg BT 549.537 136.246 Td /F4 8.7 Tf [(59)] TJ ET 0.271 0.267 0.267 rg BT 559.174 134.739 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 122.834 Td /F1 9.8 Tf [(mentions elements like message form or message strategy, it ignores the linguistic characteristics of the message. The best )] TJ ET BT 26.250 110.929 Td /F1 9.8 Tf [(practices in crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 168.737 112.436 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 178.374 110.929 Td /F1 9.8 Tf [( introduce general principles of crisis communication, such as strategic planning, proactive )] TJ ET BT 26.250 99.024 Td /F1 9.8 Tf [(strategies & strategic response, and each include sub categories that can be directly related to public communication, e.g be )] TJ ET BT 26.250 87.120 Td /F1 9.8 Tf [(open and honest, communicate compassion and provide self-efficacy. 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/Length 37765 >> stream 0.271 0.267 0.267 rg q 15.000 27.834 577.500 749.166 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F4 9.8 Tf [(Social Computing)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Computational social science is an emerging research area at the intersection of computer science, statistics, and the social )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(sciences, in which novel computational methods are used to answer questions about society)] TJ ET 0.267 0.267 0.267 rg BT 427.804 737.674 Td /F4 8.7 Tf [(61)] TJ ET 0.271 0.267 0.267 rg BT 437.441 736.167 Td /F1 9.8 Tf [( \(p. 257\). Ericson)] TJ ET 0.267 0.267 0.267 rg BT 511.678 737.674 Td /F4 8.7 Tf [(62)] TJ ET 0.271 0.267 0.267 rg BT 521.315 736.167 Td /F1 9.8 Tf [( argued that )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(social computing refers to systems that support the gathering, processing and dissemination of information that is distributed )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(across social collectives. Furthermore, the information in question is not independent of people, but rather is significant precisely )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(because it linked to people, who are in turn associated with other people. Scholars)] TJ ET 0.267 0.267 0.267 rg BT 384.465 701.960 Td /F4 8.7 Tf [(63)] TJ ET 0.271 0.267 0.267 rg BT 394.102 700.452 Td /F1 9.8 Tf [( stated that social computing represents a )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(new research frontier for information systems. Social computing environments present settings for data collection on a wide )] TJ ET BT 26.250 676.643 Td /F1 9.8 Tf [(variety of aspects for researchers interested in online behavior of individuals, both in natural observations and for controlled )] TJ ET BT 26.250 664.738 Td /F1 9.8 Tf [(experiments.)] TJ ET BT 26.250 645.333 Td /F4 9.8 Tf [(Behavioral Targeting.)] TJ ET BT 26.250 625.929 Td /F1 9.8 Tf [(Behavioral targeting \(BT\), also called online profiling)] TJ ET 0.267 0.267 0.267 rg BT 251.670 627.436 Td /F4 8.7 Tf [(64)] TJ ET 0.271 0.267 0.267 rg BT 261.307 625.929 Td /F1 9.8 Tf [( or hypertargeting)] TJ ET 0.267 0.267 0.267 rg BT 337.718 627.436 Td /F4 8.7 Tf [(65)] TJ ET 0.271 0.267 0.267 rg BT 347.355 625.929 Td /F1 9.8 Tf [( uses historical user behavior to predict user behavior )] TJ ET BT 26.250 614.024 Td /F1 9.8 Tf [(and affinities in web applications such as targeting of online advertising, content personalization and social recommendations)] TJ ET 0.267 0.267 0.267 rg BT 564.918 615.531 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 574.555 614.024 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(BT is used by online advertisers to increase the effectiveness of their campaigns, and is playing an increasingly important role in )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the online advertising market)] TJ ET 0.267 0.267 0.267 rg BT 150.884 591.722 Td /F4 8.7 Tf [(67)] TJ ET 0.271 0.267 0.267 rg BT 160.522 590.214 Td /F1 9.8 Tf [(. Through series of experiments, compared to standard run of network advertising, BT )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(advertising was found to be more successful, creating greater utility for consumers from more relevant advertisements and clear )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(appeal for advertisers from increased ad conversion)] TJ ET 0.267 0.267 0.267 rg BT 250.588 567.912 Td /F4 8.7 Tf [(68)] TJ ET 0.271 0.267 0.267 rg BT 260.225 566.405 Td /F1 9.8 Tf [(. User profiling is performed using novel computation techniques)] TJ ET 0.267 0.267 0.267 rg BT 537.671 567.912 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 547.308 570.293 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 549.718 567.912 Td /F4 8.7 Tf [(69)] TJ ET 0.271 0.267 0.267 rg BT 559.355 566.405 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(commonly fall inside the social computing paradigm, an approach to analyze and model social behaviors on different media and )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(platforms)] TJ ET 0.267 0.267 0.267 rg BT 66.342 544.103 Td /F4 8.7 Tf [(70)] TJ ET 0.271 0.267 0.267 rg BT 75.979 542.595 Td /F1 9.8 Tf [(. Van Dam & van de Velden)] TJ ET 0.267 0.267 0.267 rg BT 196.294 544.103 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 205.932 542.595 Td /F1 9.8 Tf [( proposed that social networks, like Facebook, can be operationalized to gain insight )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(into the individuals connected to a companys Facebook site \(p. 60\). In their study they describe a user profile data collection )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(framework that uses Facebook insights \(accessed by the admin\) and other personal public information on Facebook to cluster )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(users. They propose that their methodology can be implemented into an analytical customer relationship management \(CRM\) )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(framework aimed at the analysis of customer characteristics that may help improve a firms customer management strategies.)] TJ ET BT 26.250 475.572 Td /F4 9.8 Tf [(Recommender systems)] TJ ET BT 135.704 475.572 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 456.167 Td /F1 9.8 Tf [(Ricci, Rokach, & Shapira)] TJ ET 0.267 0.267 0.267 rg BT 134.075 457.674 Td /F4 8.7 Tf [(72)] TJ ET 0.271 0.267 0.267 rg BT 143.713 456.167 Td /F1 9.8 Tf [( defined Recommender Systems \(RS\) as software tools and techniques providing suggestions for )] TJ ET BT 26.250 444.262 Td /F1 9.8 Tf [(items to be of use to a user \(p. 1\). They add that since recommendations in most cases are personalized, different users or )] TJ ET BT 26.250 432.357 Td /F1 9.8 Tf [(user groups receive different suggestions. RSs try to predict what the most suitable products or services are, based on the )] TJ ET BT 26.250 420.453 Td /F1 9.8 Tf [(users preferences and constrains \(learned and collected from users. Many product purchasing sites like Amazon and E-Bay )] TJ ET BT 26.250 408.548 Td /F1 9.8 Tf [(use advanced recommendation engines)] TJ ET 0.267 0.267 0.267 rg BT 199.127 410.055 Td /F4 8.7 Tf [(73)] TJ ET 0.271 0.267 0.267 rg BT 208.765 408.548 Td /F1 9.8 Tf [(, but social networking sites \(e.g. Facebook\) use RS as well, to push relevant social )] TJ ET BT 26.250 396.643 Td /F1 9.8 Tf [(content based on use preferences, actions and texts)] TJ ET 0.267 0.267 0.267 rg BT 252.255 398.150 Td /F4 8.7 Tf [(74)] TJ ET 0.271 0.267 0.267 rg BT 261.892 396.643 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 377.238 Td /F1 9.8 Tf [(Recommender systems in Emergency)] TJ ET BT 190.957 377.238 Td /F4 9.8 Tf [(. )] TJ ET BT 196.378 377.238 Td /F1 9.8 Tf [(In the context of emergency, the existing published literature suggests that )] TJ ET BT 26.250 365.334 Td /F1 9.8 Tf [(recommendation systems can be integrated for improved disaster management)] TJ ET 0.267 0.267 0.267 rg BT 368.719 366.841 Td /F4 8.7 Tf [(75)] TJ ET 0.271 0.267 0.267 rg BT 378.356 365.334 Td /F1 9.8 Tf [(, Construction and real estate crisis )] TJ ET BT 26.250 353.429 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 354.936 Td /F4 8.7 Tf [(76)] TJ ET 0.271 0.267 0.267 rg BT 92.788 353.429 Td /F1 9.8 Tf [( and supply distribution in emergency)] TJ ET 0.267 0.267 0.267 rg BT 253.732 354.936 Td /F4 8.7 Tf [(77)] TJ ET 0.271 0.267 0.267 rg BT 263.369 353.429 Td /F1 9.8 Tf [(. However, we could not find existing literature of how crisis )] TJ ET BT 26.250 341.524 Td /F1 9.8 Tf [(communication can be aided by RS. More specifically, how crisis messages are selected for individuals or groups of individuals )] TJ ET BT 26.250 329.619 Td /F1 9.8 Tf [(based on some characteristics. Research shows that integrating data obtained from popular social media networking websites )] TJ ET BT 26.250 317.715 Td /F1 9.8 Tf [(significantly can improve results of existing recommendation systems)] TJ ET 0.267 0.267 0.267 rg BT 324.259 319.222 Td /F4 8.7 Tf [(78)] TJ ET 0.271 0.267 0.267 rg BT 333.896 317.715 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 298.310 Td /F4 9.8 Tf [(Computational social science in the face of disasters.)] TJ ET BT 26.250 278.905 Td /F1 9.8 Tf [(Over the past years technologies that rely on citizen sensing have been playing a major role in real life applications, such as )] TJ ET BT 26.250 267.000 Td /F1 9.8 Tf [(public and environmental health surveillance)] TJ ET 0.267 0.267 0.267 rg BT 218.081 268.508 Td /F4 8.7 Tf [(79)] TJ ET 0.271 0.267 0.267 rg BT 227.719 267.000 Td /F1 9.8 Tf [(, and other participatory social activities)] TJ ET 0.267 0.267 0.267 rg BT 397.866 268.508 Td /F4 8.7 Tf [(80)] TJ ET 0.271 0.267 0.267 rg BT 407.503 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 409.913 268.508 Td /F4 8.7 Tf [(81)] TJ ET 0.271 0.267 0.267 rg BT 419.550 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 421.959 268.508 Td /F4 8.7 Tf [(82)] TJ ET 0.271 0.267 0.267 rg BT 431.597 267.000 Td /F1 9.8 Tf [(. Purohit, Castillo, Meier & Sheth)] TJ ET 0.267 0.267 0.267 rg BT 26.250 256.603 Td /F4 8.7 Tf [(83)] TJ ET 0.271 0.267 0.267 rg BT 35.887 255.096 Td /F1 9.8 Tf [( noted that with the explosion in social media and the universal mobile access researchers have unique opportunities to )] TJ ET BT 26.250 243.191 Td /F1 9.8 Tf [(extract social signals, create spatial-temporal mappings, perform analytics on social data, and support applications that vary )] TJ ET BT 26.250 231.286 Td /F1 9.8 Tf [(from situational awareness during crisis response, preparedness and rebuilding phases to advanced analytics on social data, )] TJ ET BT 26.250 219.381 Td /F1 9.8 Tf [(and gaining valuable insights to support improved decision making. \(p. 1\).)] TJ ET BT 26.250 199.977 Td /F4 9.8 Tf [(Social computing, analytics, visualization for crisis communication.)] TJ ET BT 26.250 180.572 Td /F1 9.8 Tf [(In the era of big data analytics and social media, incorporation of business intelligence systems in the organization are very )] TJ ET BT 26.250 168.667 Td /F1 9.8 Tf [(common. These systems are responsible for data processing, analysis and visualization for better decision making and )] TJ ET BT 26.250 156.762 Td /F1 9.8 Tf [(business function. Based on a recently published taxonomy in the domain of text analytics and visualization)] TJ ET 0.267 0.267 0.267 rg BT 488.517 158.270 Td /F4 8.7 Tf [(84)] TJ ET 0.271 0.267 0.267 rg BT 498.154 156.762 Td /F1 9.8 Tf [(, one can find )] TJ ET BT 26.250 144.858 Td /F1 9.8 Tf [(various analytical tasks and visualization tasks with specific aim. The tasks are common text analytical procedures)] TJ ET 0.267 0.267 0.267 rg BT 518.255 146.365 Td /F4 8.7 Tf [(85)] TJ ET 0.271 0.267 0.267 rg BT 527.892 148.746 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.301 146.365 Td /F4 8.7 Tf [(86)] TJ ET 0.271 0.267 0.267 rg BT 539.939 144.858 Td /F1 9.8 Tf [(, and )] TJ ET BT 26.250 132.953 Td /F1 9.8 Tf [(include: 1\) Text Summarization / Topic Analysis / Entity Extraction, 2\) Discourse Analysis; 3\) Sentiment \(Opinion\) Analysis, 4\) )] TJ ET BT 26.250 121.048 Td /F1 9.8 Tf [(Event Analysis; 5\) Trend / Pattern Analysis; 6\) Lexical / Syntactical Analysis; 7\) Relation / Connection \(Association\) and 8\) )] TJ ET BT 26.250 109.143 Td /F1 9.8 Tf [(Translation / Text Alignment Analysis. These tasks later serve for visualization procedures for: 1\) Region of Interest, 2\) )] TJ ET BT 26.250 97.239 Td /F1 9.8 Tf [(Clustering / Classification / Categorization, 3\) Comparison, 4\) Overview; 5\) Monitoring; 6\) Navigation / Exploration; 7\) )] TJ ET BT 26.250 85.334 Td /F1 9.8 Tf [(Uncertainty Tackling.)] TJ ET BT 26.250 65.929 Td /F1 9.8 Tf [(Tables 1 & 2 summarize current state of the art of how social computing and text analytical tools can be integrated in the best )] TJ ET BT 26.250 54.024 Td /F1 9.8 Tf [(practices of crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 169.282 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 178.920 57.913 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 181.329 55.532 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 190.967 54.024 Td /F1 9.8 Tf [(. We focus on the objectives in the processes of crisis and emergency communication)] TJ ET 0.267 0.267 0.267 rg BT 560.531 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 26.250 42.120 Td /F1 9.8 Tf [(that occur in different times of the crisis life cycle and have direct association to communication processes with the public. )] TJ ET Q q 15.000 27.834 577.500 749.166 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F4 9.8 Tf [(Social Computing)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Computational social science is an emerging research area at the intersection of computer science, statistics, and the social )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(sciences, in which novel computational methods are used to answer questions about society)] TJ ET 0.267 0.267 0.267 rg BT 427.804 737.674 Td /F4 8.7 Tf [(61)] TJ ET 0.271 0.267 0.267 rg BT 437.441 736.167 Td /F1 9.8 Tf [( \(p. 257\). Ericson)] TJ ET 0.267 0.267 0.267 rg BT 511.678 737.674 Td /F4 8.7 Tf [(62)] TJ ET 0.271 0.267 0.267 rg BT 521.315 736.167 Td /F1 9.8 Tf [( argued that )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(social computing refers to systems that support the gathering, processing and dissemination of information that is distributed )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(across social collectives. Furthermore, the information in question is not independent of people, but rather is significant precisely )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(because it linked to people, who are in turn associated with other people. Scholars)] TJ ET 0.267 0.267 0.267 rg BT 384.465 701.960 Td /F4 8.7 Tf [(63)] TJ ET 0.271 0.267 0.267 rg BT 394.102 700.452 Td /F1 9.8 Tf [( stated that social computing represents a )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(new research frontier for information systems. Social computing environments present settings for data collection on a wide )] TJ ET BT 26.250 676.643 Td /F1 9.8 Tf [(variety of aspects for researchers interested in online behavior of individuals, both in natural observations and for controlled )] TJ ET BT 26.250 664.738 Td /F1 9.8 Tf [(experiments.)] TJ ET BT 26.250 645.333 Td /F4 9.8 Tf [(Behavioral Targeting.)] TJ ET BT 26.250 625.929 Td /F1 9.8 Tf [(Behavioral targeting \(BT\), also called online profiling)] TJ ET 0.267 0.267 0.267 rg BT 251.670 627.436 Td /F4 8.7 Tf [(64)] TJ ET 0.271 0.267 0.267 rg BT 261.307 625.929 Td /F1 9.8 Tf [( or hypertargeting)] TJ ET 0.267 0.267 0.267 rg BT 337.718 627.436 Td /F4 8.7 Tf [(65)] TJ ET 0.271 0.267 0.267 rg BT 347.355 625.929 Td /F1 9.8 Tf [( uses historical user behavior to predict user behavior )] TJ ET BT 26.250 614.024 Td /F1 9.8 Tf [(and affinities in web applications such as targeting of online advertising, content personalization and social recommendations)] TJ ET 0.267 0.267 0.267 rg BT 564.918 615.531 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 574.555 614.024 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(BT is used by online advertisers to increase the effectiveness of their campaigns, and is playing an increasingly important role in )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the online advertising market)] TJ ET 0.267 0.267 0.267 rg BT 150.884 591.722 Td /F4 8.7 Tf [(67)] TJ ET 0.271 0.267 0.267 rg BT 160.522 590.214 Td /F1 9.8 Tf [(. Through series of experiments, compared to standard run of network advertising, BT )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(advertising was found to be more successful, creating greater utility for consumers from more relevant advertisements and clear )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(appeal for advertisers from increased ad conversion)] TJ ET 0.267 0.267 0.267 rg BT 250.588 567.912 Td /F4 8.7 Tf [(68)] TJ ET 0.271 0.267 0.267 rg BT 260.225 566.405 Td /F1 9.8 Tf [(. User profiling is performed using novel computation techniques)] TJ ET 0.267 0.267 0.267 rg BT 537.671 567.912 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 547.308 570.293 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 549.718 567.912 Td /F4 8.7 Tf [(69)] TJ ET 0.271 0.267 0.267 rg BT 559.355 566.405 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(commonly fall inside the social computing paradigm, an approach to analyze and model social behaviors on different media and )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(platforms)] TJ ET 0.267 0.267 0.267 rg BT 66.342 544.103 Td /F4 8.7 Tf [(70)] TJ ET 0.271 0.267 0.267 rg BT 75.979 542.595 Td /F1 9.8 Tf [(. Van Dam & van de Velden)] TJ ET 0.267 0.267 0.267 rg BT 196.294 544.103 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 205.932 542.595 Td /F1 9.8 Tf [( proposed that social networks, like Facebook, can be operationalized to gain insight )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(into the individuals connected to a companys Facebook site \(p. 60\). In their study they describe a user profile data collection )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(framework that uses Facebook insights \(accessed by the admin\) and other personal public information on Facebook to cluster )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(users. They propose that their methodology can be implemented into an analytical customer relationship management \(CRM\) )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(framework aimed at the analysis of customer characteristics that may help improve a firms customer management strategies.)] TJ ET BT 26.250 475.572 Td /F4 9.8 Tf [(Recommender systems)] TJ ET BT 135.704 475.572 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 456.167 Td /F1 9.8 Tf [(Ricci, Rokach, & Shapira)] TJ ET 0.267 0.267 0.267 rg BT 134.075 457.674 Td /F4 8.7 Tf [(72)] TJ ET 0.271 0.267 0.267 rg BT 143.713 456.167 Td /F1 9.8 Tf [( defined Recommender Systems \(RS\) as software tools and techniques providing suggestions for )] TJ ET BT 26.250 444.262 Td /F1 9.8 Tf [(items to be of use to a user \(p. 1\). They add that since recommendations in most cases are personalized, different users or )] TJ ET BT 26.250 432.357 Td /F1 9.8 Tf [(user groups receive different suggestions. RSs try to predict what the most suitable products or services are, based on the )] TJ ET BT 26.250 420.453 Td /F1 9.8 Tf [(users preferences and constrains \(learned and collected from users. Many product purchasing sites like Amazon and E-Bay )] TJ ET BT 26.250 408.548 Td /F1 9.8 Tf [(use advanced recommendation engines)] TJ ET 0.267 0.267 0.267 rg BT 199.127 410.055 Td /F4 8.7 Tf [(73)] TJ ET 0.271 0.267 0.267 rg BT 208.765 408.548 Td /F1 9.8 Tf [(, but social networking sites \(e.g. Facebook\) use RS as well, to push relevant social )] TJ ET BT 26.250 396.643 Td /F1 9.8 Tf [(content based on use preferences, actions and texts)] TJ ET 0.267 0.267 0.267 rg BT 252.255 398.150 Td /F4 8.7 Tf [(74)] TJ ET 0.271 0.267 0.267 rg BT 261.892 396.643 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 377.238 Td /F1 9.8 Tf [(Recommender systems in Emergency)] TJ ET BT 190.957 377.238 Td /F4 9.8 Tf [(. )] TJ ET BT 196.378 377.238 Td /F1 9.8 Tf [(In the context of emergency, the existing published literature suggests that )] TJ ET BT 26.250 365.334 Td /F1 9.8 Tf [(recommendation systems can be integrated for improved disaster management)] TJ ET 0.267 0.267 0.267 rg BT 368.719 366.841 Td /F4 8.7 Tf [(75)] TJ ET 0.271 0.267 0.267 rg BT 378.356 365.334 Td /F1 9.8 Tf [(, Construction and real estate crisis )] TJ ET BT 26.250 353.429 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 354.936 Td /F4 8.7 Tf [(76)] TJ ET 0.271 0.267 0.267 rg BT 92.788 353.429 Td /F1 9.8 Tf [( and supply distribution in emergency)] TJ ET 0.267 0.267 0.267 rg BT 253.732 354.936 Td /F4 8.7 Tf [(77)] TJ ET 0.271 0.267 0.267 rg BT 263.369 353.429 Td /F1 9.8 Tf [(. However, we could not find existing literature of how crisis )] TJ ET BT 26.250 341.524 Td /F1 9.8 Tf [(communication can be aided by RS. More specifically, how crisis messages are selected for individuals or groups of individuals )] TJ ET BT 26.250 329.619 Td /F1 9.8 Tf [(based on some characteristics. Research shows that integrating data obtained from popular social media networking websites )] TJ ET BT 26.250 317.715 Td /F1 9.8 Tf [(significantly can improve results of existing recommendation systems)] TJ ET 0.267 0.267 0.267 rg BT 324.259 319.222 Td /F4 8.7 Tf [(78)] TJ ET 0.271 0.267 0.267 rg BT 333.896 317.715 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 298.310 Td /F4 9.8 Tf [(Computational social science in the face of disasters.)] TJ ET BT 26.250 278.905 Td /F1 9.8 Tf [(Over the past years technologies that rely on citizen sensing have been playing a major role in real life applications, such as )] TJ ET BT 26.250 267.000 Td /F1 9.8 Tf [(public and environmental health surveillance)] TJ ET 0.267 0.267 0.267 rg BT 218.081 268.508 Td /F4 8.7 Tf [(79)] TJ ET 0.271 0.267 0.267 rg BT 227.719 267.000 Td /F1 9.8 Tf [(, and other participatory social activities)] TJ ET 0.267 0.267 0.267 rg BT 397.866 268.508 Td /F4 8.7 Tf [(80)] TJ ET 0.271 0.267 0.267 rg BT 407.503 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 409.913 268.508 Td /F4 8.7 Tf [(81)] TJ ET 0.271 0.267 0.267 rg BT 419.550 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 421.959 268.508 Td /F4 8.7 Tf [(82)] TJ ET 0.271 0.267 0.267 rg BT 431.597 267.000 Td /F1 9.8 Tf [(. Purohit, Castillo, Meier & Sheth)] TJ ET 0.267 0.267 0.267 rg BT 26.250 256.603 Td /F4 8.7 Tf [(83)] TJ ET 0.271 0.267 0.267 rg BT 35.887 255.096 Td /F1 9.8 Tf [( noted that with the explosion in social media and the universal mobile access researchers have unique opportunities to )] TJ ET BT 26.250 243.191 Td /F1 9.8 Tf [(extract social signals, create spatial-temporal mappings, perform analytics on social data, and support applications that vary )] TJ ET BT 26.250 231.286 Td /F1 9.8 Tf [(from situational awareness during crisis response, preparedness and rebuilding phases to advanced analytics on social data, )] TJ ET BT 26.250 219.381 Td /F1 9.8 Tf [(and gaining valuable insights to support improved decision making. \(p. 1\).)] TJ ET BT 26.250 199.977 Td /F4 9.8 Tf [(Social computing, analytics, visualization for crisis communication.)] TJ ET BT 26.250 180.572 Td /F1 9.8 Tf [(In the era of big data analytics and social media, incorporation of business intelligence systems in the organization are very )] TJ ET BT 26.250 168.667 Td /F1 9.8 Tf [(common. These systems are responsible for data processing, analysis and visualization for better decision making and )] TJ ET BT 26.250 156.762 Td /F1 9.8 Tf [(business function. Based on a recently published taxonomy in the domain of text analytics and visualization)] TJ ET 0.267 0.267 0.267 rg BT 488.517 158.270 Td /F4 8.7 Tf [(84)] TJ ET 0.271 0.267 0.267 rg BT 498.154 156.762 Td /F1 9.8 Tf [(, one can find )] TJ ET BT 26.250 144.858 Td /F1 9.8 Tf [(various analytical tasks and visualization tasks with specific aim. The tasks are common text analytical procedures)] TJ ET 0.267 0.267 0.267 rg BT 518.255 146.365 Td /F4 8.7 Tf [(85)] TJ ET 0.271 0.267 0.267 rg BT 527.892 148.746 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.301 146.365 Td /F4 8.7 Tf [(86)] TJ ET 0.271 0.267 0.267 rg BT 539.939 144.858 Td /F1 9.8 Tf [(, and )] TJ ET BT 26.250 132.953 Td /F1 9.8 Tf [(include: 1\) Text Summarization / Topic Analysis / Entity Extraction, 2\) Discourse Analysis; 3\) Sentiment \(Opinion\) Analysis, 4\) )] TJ ET BT 26.250 121.048 Td /F1 9.8 Tf [(Event Analysis; 5\) Trend / Pattern Analysis; 6\) Lexical / Syntactical Analysis; 7\) Relation / Connection \(Association\) and 8\) )] TJ ET BT 26.250 109.143 Td /F1 9.8 Tf [(Translation / Text Alignment Analysis. These tasks later serve for visualization procedures for: 1\) Region of Interest, 2\) )] TJ ET BT 26.250 97.239 Td /F1 9.8 Tf [(Clustering / Classification / Categorization, 3\) Comparison, 4\) Overview; 5\) Monitoring; 6\) Navigation / Exploration; 7\) )] TJ ET BT 26.250 85.334 Td /F1 9.8 Tf [(Uncertainty Tackling.)] TJ ET BT 26.250 65.929 Td /F1 9.8 Tf [(Tables 1 & 2 summarize current state of the art of how social computing and text analytical tools can be integrated in the best )] TJ ET BT 26.250 54.024 Td /F1 9.8 Tf [(practices of crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 169.282 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 178.920 57.913 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 181.329 55.532 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 190.967 54.024 Td /F1 9.8 Tf [(. We focus on the objectives in the processes of crisis and emergency communication)] TJ ET 0.267 0.267 0.267 rg BT 560.531 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 26.250 42.120 Td /F1 9.8 Tf [(that occur in different times of the crisis life cycle and have direct association to communication processes with the public. )] TJ ET Q q 15.000 27.834 577.500 749.166 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F4 9.8 Tf [(Social Computing)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Computational social science is an emerging research area at the intersection of computer science, statistics, and the social )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(sciences, in which novel computational methods are used to answer questions about society)] TJ ET 0.267 0.267 0.267 rg BT 427.804 737.674 Td /F4 8.7 Tf [(61)] TJ ET 0.271 0.267 0.267 rg BT 437.441 736.167 Td /F1 9.8 Tf [( \(p. 257\). Ericson)] TJ ET 0.267 0.267 0.267 rg BT 511.678 737.674 Td /F4 8.7 Tf [(62)] TJ ET 0.271 0.267 0.267 rg BT 521.315 736.167 Td /F1 9.8 Tf [( argued that )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(social computing refers to systems that support the gathering, processing and dissemination of information that is distributed )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(across social collectives. Furthermore, the information in question is not independent of people, but rather is significant precisely )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(because it linked to people, who are in turn associated with other people. Scholars)] TJ ET 0.267 0.267 0.267 rg BT 384.465 701.960 Td /F4 8.7 Tf [(63)] TJ ET 0.271 0.267 0.267 rg BT 394.102 700.452 Td /F1 9.8 Tf [( stated that social computing represents a )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(new research frontier for information systems. Social computing environments present settings for data collection on a wide )] TJ ET BT 26.250 676.643 Td /F1 9.8 Tf [(variety of aspects for researchers interested in online behavior of individuals, both in natural observations and for controlled )] TJ ET BT 26.250 664.738 Td /F1 9.8 Tf [(experiments.)] TJ ET BT 26.250 645.333 Td /F4 9.8 Tf [(Behavioral Targeting.)] TJ ET BT 26.250 625.929 Td /F1 9.8 Tf [(Behavioral targeting \(BT\), also called online profiling)] TJ ET 0.267 0.267 0.267 rg BT 251.670 627.436 Td /F4 8.7 Tf [(64)] TJ ET 0.271 0.267 0.267 rg BT 261.307 625.929 Td /F1 9.8 Tf [( or hypertargeting)] TJ ET 0.267 0.267 0.267 rg BT 337.718 627.436 Td /F4 8.7 Tf [(65)] TJ ET 0.271 0.267 0.267 rg BT 347.355 625.929 Td /F1 9.8 Tf [( uses historical user behavior to predict user behavior )] TJ ET BT 26.250 614.024 Td /F1 9.8 Tf [(and affinities in web applications such as targeting of online advertising, content personalization and social recommendations)] TJ ET 0.267 0.267 0.267 rg BT 564.918 615.531 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 574.555 614.024 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(BT is used by online advertisers to increase the effectiveness of their campaigns, and is playing an increasingly important role in )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the online advertising market)] TJ ET 0.267 0.267 0.267 rg BT 150.884 591.722 Td /F4 8.7 Tf [(67)] TJ ET 0.271 0.267 0.267 rg BT 160.522 590.214 Td /F1 9.8 Tf [(. Through series of experiments, compared to standard run of network advertising, BT )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(advertising was found to be more successful, creating greater utility for consumers from more relevant advertisements and clear )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(appeal for advertisers from increased ad conversion)] TJ ET 0.267 0.267 0.267 rg BT 250.588 567.912 Td /F4 8.7 Tf [(68)] TJ ET 0.271 0.267 0.267 rg BT 260.225 566.405 Td /F1 9.8 Tf [(. User profiling is performed using novel computation techniques)] TJ ET 0.267 0.267 0.267 rg BT 537.671 567.912 Td /F4 8.7 Tf [(66)] TJ ET 0.271 0.267 0.267 rg BT 547.308 570.293 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 549.718 567.912 Td /F4 8.7 Tf [(69)] TJ ET 0.271 0.267 0.267 rg BT 559.355 566.405 Td /F1 9.8 Tf [(, )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(commonly fall inside the social computing paradigm, an approach to analyze and model social behaviors on different media and )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(platforms)] TJ ET 0.267 0.267 0.267 rg BT 66.342 544.103 Td /F4 8.7 Tf [(70)] TJ ET 0.271 0.267 0.267 rg BT 75.979 542.595 Td /F1 9.8 Tf [(. Van Dam & van de Velden)] TJ ET 0.267 0.267 0.267 rg BT 196.294 544.103 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 205.932 542.595 Td /F1 9.8 Tf [( proposed that social networks, like Facebook, can be operationalized to gain insight )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(into the individuals connected to a companys Facebook site \(p. 60\). In their study they describe a user profile data collection )] TJ ET BT 26.250 518.786 Td /F1 9.8 Tf [(framework that uses Facebook insights \(accessed by the admin\) and other personal public information on Facebook to cluster )] TJ ET BT 26.250 506.881 Td /F1 9.8 Tf [(users. They propose that their methodology can be implemented into an analytical customer relationship management \(CRM\) )] TJ ET BT 26.250 494.976 Td /F1 9.8 Tf [(framework aimed at the analysis of customer characteristics that may help improve a firms customer management strategies.)] TJ ET BT 26.250 475.572 Td /F4 9.8 Tf [(Recommender systems)] TJ ET BT 135.704 475.572 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 456.167 Td /F1 9.8 Tf [(Ricci, Rokach, & Shapira)] TJ ET 0.267 0.267 0.267 rg BT 134.075 457.674 Td /F4 8.7 Tf [(72)] TJ ET 0.271 0.267 0.267 rg BT 143.713 456.167 Td /F1 9.8 Tf [( defined Recommender Systems \(RS\) as software tools and techniques providing suggestions for )] TJ ET BT 26.250 444.262 Td /F1 9.8 Tf [(items to be of use to a user \(p. 1\). They add that since recommendations in most cases are personalized, different users or )] TJ ET BT 26.250 432.357 Td /F1 9.8 Tf [(user groups receive different suggestions. RSs try to predict what the most suitable products or services are, based on the )] TJ ET BT 26.250 420.453 Td /F1 9.8 Tf [(users preferences and constrains \(learned and collected from users. Many product purchasing sites like Amazon and E-Bay )] TJ ET BT 26.250 408.548 Td /F1 9.8 Tf [(use advanced recommendation engines)] TJ ET 0.267 0.267 0.267 rg BT 199.127 410.055 Td /F4 8.7 Tf [(73)] TJ ET 0.271 0.267 0.267 rg BT 208.765 408.548 Td /F1 9.8 Tf [(, but social networking sites \(e.g. Facebook\) use RS as well, to push relevant social )] TJ ET BT 26.250 396.643 Td /F1 9.8 Tf [(content based on use preferences, actions and texts)] TJ ET 0.267 0.267 0.267 rg BT 252.255 398.150 Td /F4 8.7 Tf [(74)] TJ ET 0.271 0.267 0.267 rg BT 261.892 396.643 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 377.238 Td /F1 9.8 Tf [(Recommender systems in Emergency)] TJ ET BT 190.957 377.238 Td /F4 9.8 Tf [(. )] TJ ET BT 196.378 377.238 Td /F1 9.8 Tf [(In the context of emergency, the existing published literature suggests that )] TJ ET BT 26.250 365.334 Td /F1 9.8 Tf [(recommendation systems can be integrated for improved disaster management)] TJ ET 0.267 0.267 0.267 rg BT 368.719 366.841 Td /F4 8.7 Tf [(75)] TJ ET 0.271 0.267 0.267 rg BT 378.356 365.334 Td /F1 9.8 Tf [(, Construction and real estate crisis )] TJ ET BT 26.250 353.429 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 354.936 Td /F4 8.7 Tf [(76)] TJ ET 0.271 0.267 0.267 rg BT 92.788 353.429 Td /F1 9.8 Tf [( and supply distribution in emergency)] TJ ET 0.267 0.267 0.267 rg BT 253.732 354.936 Td /F4 8.7 Tf [(77)] TJ ET 0.271 0.267 0.267 rg BT 263.369 353.429 Td /F1 9.8 Tf [(. However, we could not find existing literature of how crisis )] TJ ET BT 26.250 341.524 Td /F1 9.8 Tf [(communication can be aided by RS. More specifically, how crisis messages are selected for individuals or groups of individuals )] TJ ET BT 26.250 329.619 Td /F1 9.8 Tf [(based on some characteristics. Research shows that integrating data obtained from popular social media networking websites )] TJ ET BT 26.250 317.715 Td /F1 9.8 Tf [(significantly can improve results of existing recommendation systems)] TJ ET 0.267 0.267 0.267 rg BT 324.259 319.222 Td /F4 8.7 Tf [(78)] TJ ET 0.271 0.267 0.267 rg BT 333.896 317.715 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 298.310 Td /F4 9.8 Tf [(Computational social science in the face of disasters.)] TJ ET BT 26.250 278.905 Td /F1 9.8 Tf [(Over the past years technologies that rely on citizen sensing have been playing a major role in real life applications, such as )] TJ ET BT 26.250 267.000 Td /F1 9.8 Tf [(public and environmental health surveillance)] TJ ET 0.267 0.267 0.267 rg BT 218.081 268.508 Td /F4 8.7 Tf [(79)] TJ ET 0.271 0.267 0.267 rg BT 227.719 267.000 Td /F1 9.8 Tf [(, and other participatory social activities)] TJ ET 0.267 0.267 0.267 rg BT 397.866 268.508 Td /F4 8.7 Tf [(80)] TJ ET 0.271 0.267 0.267 rg BT 407.503 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 409.913 268.508 Td /F4 8.7 Tf [(81)] TJ ET 0.271 0.267 0.267 rg BT 419.550 270.889 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 421.959 268.508 Td /F4 8.7 Tf [(82)] TJ ET 0.271 0.267 0.267 rg BT 431.597 267.000 Td /F1 9.8 Tf [(. Purohit, Castillo, Meier & Sheth)] TJ ET 0.267 0.267 0.267 rg BT 26.250 256.603 Td /F4 8.7 Tf [(83)] TJ ET 0.271 0.267 0.267 rg BT 35.887 255.096 Td /F1 9.8 Tf [( noted that with the explosion in social media and the universal mobile access researchers have unique opportunities to )] TJ ET BT 26.250 243.191 Td /F1 9.8 Tf [(extract social signals, create spatial-temporal mappings, perform analytics on social data, and support applications that vary )] TJ ET BT 26.250 231.286 Td /F1 9.8 Tf [(from situational awareness during crisis response, preparedness and rebuilding phases to advanced analytics on social data, )] TJ ET BT 26.250 219.381 Td /F1 9.8 Tf [(and gaining valuable insights to support improved decision making. \(p. 1\).)] TJ ET BT 26.250 199.977 Td /F4 9.8 Tf [(Social computing, analytics, visualization for crisis communication.)] TJ ET BT 26.250 180.572 Td /F1 9.8 Tf [(In the era of big data analytics and social media, incorporation of business intelligence systems in the organization are very )] TJ ET BT 26.250 168.667 Td /F1 9.8 Tf [(common. These systems are responsible for data processing, analysis and visualization for better decision making and )] TJ ET BT 26.250 156.762 Td /F1 9.8 Tf [(business function. Based on a recently published taxonomy in the domain of text analytics and visualization)] TJ ET 0.267 0.267 0.267 rg BT 488.517 158.270 Td /F4 8.7 Tf [(84)] TJ ET 0.271 0.267 0.267 rg BT 498.154 156.762 Td /F1 9.8 Tf [(, one can find )] TJ ET BT 26.250 144.858 Td /F1 9.8 Tf [(various analytical tasks and visualization tasks with specific aim. The tasks are common text analytical procedures)] TJ ET 0.267 0.267 0.267 rg BT 518.255 146.365 Td /F4 8.7 Tf [(85)] TJ ET 0.271 0.267 0.267 rg BT 527.892 148.746 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.301 146.365 Td /F4 8.7 Tf [(86)] TJ ET 0.271 0.267 0.267 rg BT 539.939 144.858 Td /F1 9.8 Tf [(, and )] TJ ET BT 26.250 132.953 Td /F1 9.8 Tf [(include: 1\) Text Summarization / Topic Analysis / Entity Extraction, 2\) Discourse Analysis; 3\) Sentiment \(Opinion\) Analysis, 4\) )] TJ ET BT 26.250 121.048 Td /F1 9.8 Tf [(Event Analysis; 5\) Trend / Pattern Analysis; 6\) Lexical / Syntactical Analysis; 7\) Relation / Connection \(Association\) and 8\) )] TJ ET BT 26.250 109.143 Td /F1 9.8 Tf [(Translation / Text Alignment Analysis. These tasks later serve for visualization procedures for: 1\) Region of Interest, 2\) )] TJ ET BT 26.250 97.239 Td /F1 9.8 Tf [(Clustering / Classification / Categorization, 3\) Comparison, 4\) Overview; 5\) Monitoring; 6\) Navigation / Exploration; 7\) )] TJ ET BT 26.250 85.334 Td /F1 9.8 Tf [(Uncertainty Tackling.)] TJ ET BT 26.250 65.929 Td /F1 9.8 Tf [(Tables 1 & 2 summarize current state of the art of how social computing and text analytical tools can be integrated in the best )] TJ ET BT 26.250 54.024 Td /F1 9.8 Tf [(practices of crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 169.282 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 178.920 57.913 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 181.329 55.532 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 190.967 54.024 Td /F1 9.8 Tf [(. We focus on the objectives in the processes of crisis and emergency communication)] TJ ET 0.267 0.267 0.267 rg BT 560.531 55.532 Td /F4 8.7 Tf [(27)] TJ ET 0.271 0.267 0.267 rg BT 26.250 42.120 Td /F1 9.8 Tf [(that occur in different times of the crisis life cycle and have direct association to communication processes with the public. )] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(5)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 550 0 obj << /Type /Annot /Subtype /Link /A 551 0 R /Border [0 0 0] /H /I /Rect [ 427.8037 736.8722 437.4411 745.6905 ] >> endobj 551 0 obj << /Type /Action >> endobj 552 0 obj << /Type /Annot /Subtype /Link /A 553 0 R /Border [0 0 0] /H /I /Rect [ 511.6776 736.8722 521.3149 745.6905 ] >> endobj 553 0 obj << /Type /Action >> endobj 554 0 obj << /Type /Annot /Subtype /Link /A 555 0 R /Border [0 0 0] /H /I /Rect [ 384.4650 701.1579 394.1023 709.9762 ] >> endobj 555 0 obj << /Type /Action >> 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2: Visualization Tasks in the domain of Text Mining & Analytics for Crisis and Emergency Communication)] TJ ET Q BT 26.250 179.613 Td /F4 9.8 Tf [(Monitoring and recognition of emerging risk)] TJ ET BT 231.029 179.613 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 160.208 Td /F1 9.8 Tf [(Information extraction tools using pre-defined lexicons of crisis related terms)] TJ ET 0.267 0.267 0.267 rg BT 354.620 161.715 Td /F4 8.7 Tf [(87)] TJ ET 0.271 0.267 0.267 rg BT 364.258 164.096 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 366.667 161.715 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 376.304 160.208 Td /F1 9.8 Tf [(, as well trend analysis \(e.g. hashtag or term )] TJ ET BT 26.250 148.303 Td /F1 9.8 Tf [(anomaly detection\) could be a useful way to spot potential risks in the environment, based on social media feeds and streams, )] TJ ET BT 26.250 136.398 Td /F1 9.8 Tf [(that previously have shown themselves to be valuable sources of real-time information about what is happening in the world)] TJ ET 0.267 0.267 0.267 rg BT 559.487 137.906 Td /F4 8.7 Tf [(89)] TJ ET 0.271 0.267 0.267 rg BT 569.125 136.398 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 124.494 Td /F1 9.8 Tf [(Social Media feeds can represent a hybrid form of a sensor system that allows for the identification and localization of the )] TJ ET BT 26.250 112.589 Td /F1 9.8 Tf [(impact area of the event)] TJ ET 0.267 0.267 0.267 rg BT 130.848 114.096 Td /F4 8.7 Tf [(90)] TJ ET 0.271 0.267 0.267 rg BT 140.485 116.477 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 142.895 114.096 Td /F4 8.7 Tf [(91)] TJ ET 0.271 0.267 0.267 rg BT 152.532 112.589 Td /F1 9.8 Tf [(. 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However, it can also be inferred from social media )] TJ ET Q q 15.000 23.779 577.500 753.221 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Finally, we describe how computational and analytical tools can be utilized to accomplish these aims.)] TJ ET 0.965 0.965 0.965 rg 26.250 445.873 555.000 311.723 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 757.595 m 581.250 757.595 l 581.250 756.845 l 26.250 756.845 l f 26.250 445.873 m 581.250 445.873 l 581.250 446.623 l 26.250 446.623 l f q 450.000 0 0 249.750 35.250 498.095 cm /I3 Do Q q 35.250 457.123 537.000 34.973 re W n 0.271 0.267 0.267 rg BT 35.250 481.106 Td /F4 9.8 Tf [(Table 1: Analytical Tasks in the domain of Text Mining & Analytics for Crisis and Emergency Communication using )] TJ ET BT 35.250 467.370 Td /F4 9.8 Tf [(Social Media)] TJ ET Q 0.965 0.965 0.965 rg 26.250 196.636 555.000 241.736 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 438.373 m 581.250 438.373 l 581.250 437.623 l 26.250 437.623 l f 26.250 196.636 m 581.250 196.636 l 581.250 197.386 l 26.250 197.386 l f q 450.000 0 0 193.500 35.250 235.123 cm /I4 Do Q q 35.250 207.886 537.000 21.236 re W n 0.271 0.267 0.267 rg BT 35.250 218.134 Td /F4 9.8 Tf [(Table 2: Visualization Tasks in the domain of Text Mining & Analytics for Crisis and Emergency Communication)] TJ ET Q BT 26.250 179.613 Td /F4 9.8 Tf [(Monitoring and recognition of emerging risk)] TJ ET BT 231.029 179.613 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 160.208 Td /F1 9.8 Tf [(Information extraction tools using pre-defined lexicons of crisis related terms)] TJ ET 0.267 0.267 0.267 rg BT 354.620 161.715 Td /F4 8.7 Tf [(87)] TJ ET 0.271 0.267 0.267 rg BT 364.258 164.096 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 366.667 161.715 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 376.304 160.208 Td /F1 9.8 Tf [(, as well trend analysis \(e.g. hashtag or term )] TJ ET BT 26.250 148.303 Td /F1 9.8 Tf [(anomaly detection\) could be a useful way to spot potential risks in the environment, based on social media feeds and streams, )] TJ ET BT 26.250 136.398 Td /F1 9.8 Tf [(that previously have shown themselves to be valuable sources of real-time information about what is happening in the world)] TJ ET 0.267 0.267 0.267 rg BT 559.487 137.906 Td /F4 8.7 Tf [(89)] TJ ET 0.271 0.267 0.267 rg BT 569.125 136.398 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 124.494 Td /F1 9.8 Tf [(Social Media feeds can represent a hybrid form of a sensor system that allows for the identification and localization of the )] TJ ET BT 26.250 112.589 Td /F1 9.8 Tf [(impact area of the event)] TJ ET 0.267 0.267 0.267 rg BT 130.848 114.096 Td /F4 8.7 Tf [(90)] TJ ET 0.271 0.267 0.267 rg BT 140.485 116.477 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 142.895 114.096 Td /F4 8.7 Tf [(91)] TJ ET 0.271 0.267 0.267 rg BT 152.532 112.589 Td /F1 9.8 Tf [(. Next, using text visualization techniques, geo-located information can be mapped and depicted in )] TJ ET BT 26.250 100.684 Td /F1 9.8 Tf [(a way a potential risk can be categorized according to its geographical occurrence. As people will explicitly mention different )] TJ ET BT 26.250 88.779 Td /F1 9.8 Tf [(terms related to potential risks, dynamic map would show categorizations of the terms into risk topics, allowing crisis managers )] TJ ET BT 26.250 76.875 Td /F1 9.8 Tf [(to monitor risks.)] TJ ET BT 26.250 57.470 Td /F4 9.8 Tf [(General publics understanding of risk.)] TJ ET BT 26.250 38.065 Td /F1 9.8 Tf [(Publics knowledge of risk is conducted most of the times through surveys)] TJ ET 0.267 0.267 0.267 rg BT 344.334 39.572 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 353.971 38.065 Td /F1 9.8 Tf [(. However, it can also be inferred from social media )] TJ ET Q q 15.000 23.779 577.500 753.221 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Finally, we describe how computational and analytical tools can be utilized to accomplish these aims.)] TJ ET 0.965 0.965 0.965 rg 26.250 445.873 555.000 311.723 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 757.595 m 581.250 757.595 l 581.250 756.845 l 26.250 756.845 l f 26.250 445.873 m 581.250 445.873 l 581.250 446.623 l 26.250 446.623 l f q 450.000 0 0 249.750 35.250 498.095 cm /I3 Do Q q 35.250 457.123 537.000 34.973 re W n 0.271 0.267 0.267 rg BT 35.250 481.106 Td /F4 9.8 Tf [(Table 1: Analytical Tasks in the domain of Text Mining & Analytics for Crisis and Emergency Communication using )] TJ ET BT 35.250 467.370 Td /F4 9.8 Tf [(Social Media)] TJ ET Q 0.965 0.965 0.965 rg 26.250 196.636 555.000 241.736 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 438.373 m 581.250 438.373 l 581.250 437.623 l 26.250 437.623 l f 26.250 196.636 m 581.250 196.636 l 581.250 197.386 l 26.250 197.386 l f q 450.000 0 0 193.500 35.250 235.123 cm /I4 Do Q q 35.250 207.886 537.000 21.236 re W n 0.271 0.267 0.267 rg BT 35.250 218.134 Td /F4 9.8 Tf [(Table 2: Visualization Tasks in the domain of Text Mining & Analytics for Crisis and Emergency Communication)] TJ ET Q BT 26.250 179.613 Td /F4 9.8 Tf [(Monitoring and recognition of emerging risk)] TJ ET BT 231.029 179.613 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 160.208 Td /F1 9.8 Tf [(Information extraction tools using pre-defined lexicons of crisis related terms)] TJ ET 0.267 0.267 0.267 rg BT 354.620 161.715 Td /F4 8.7 Tf [(87)] TJ ET 0.271 0.267 0.267 rg BT 364.258 164.096 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 366.667 161.715 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 376.304 160.208 Td /F1 9.8 Tf [(, as well trend analysis \(e.g. hashtag or term )] TJ ET BT 26.250 148.303 Td /F1 9.8 Tf [(anomaly detection\) could be a useful way to spot potential risks in the environment, based on social media feeds and streams, )] TJ ET BT 26.250 136.398 Td /F1 9.8 Tf [(that previously have shown themselves to be valuable sources of real-time information about what is happening in the world)] TJ ET 0.267 0.267 0.267 rg BT 559.487 137.906 Td /F4 8.7 Tf [(89)] TJ ET 0.271 0.267 0.267 rg BT 569.125 136.398 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 124.494 Td /F1 9.8 Tf [(Social Media feeds can represent a hybrid form of a sensor system that allows for the identification and localization of the )] TJ ET BT 26.250 112.589 Td /F1 9.8 Tf [(impact area of the event)] TJ ET 0.267 0.267 0.267 rg BT 130.848 114.096 Td /F4 8.7 Tf [(90)] TJ ET 0.271 0.267 0.267 rg BT 140.485 116.477 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 142.895 114.096 Td /F4 8.7 Tf [(91)] TJ ET 0.271 0.267 0.267 rg BT 152.532 112.589 Td /F1 9.8 Tf [(. Next, using text visualization techniques, geo-located information can be mapped and depicted in )] TJ ET BT 26.250 100.684 Td /F1 9.8 Tf [(a way a potential risk can be categorized according to its geographical occurrence. As people will explicitly mention different )] TJ ET BT 26.250 88.779 Td /F1 9.8 Tf [(terms related to potential risks, dynamic map would show categorizations of the terms into risk topics, allowing crisis managers )] TJ ET BT 26.250 76.875 Td /F1 9.8 Tf [(to monitor risks.)] TJ ET BT 26.250 57.470 Td /F4 9.8 Tf [(General publics understanding of risk.)] TJ ET BT 26.250 38.065 Td /F1 9.8 Tf [(Publics knowledge of risk is conducted most of the times through surveys)] TJ ET 0.267 0.267 0.267 rg BT 344.334 39.572 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 353.971 38.065 Td /F1 9.8 Tf [(. However, it can also be inferred from social media )] TJ ET Q q 450.000 0 0 249.750 35.250 498.095 cm /I3 Do Q q 450.000 0 0 193.500 35.250 235.123 cm /I4 Do Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(6)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 732 0 obj << /Type /Annot /Subtype /Link /A 733 0 R /Border [0 0 0] /H /I /Rect [ 35.2500 498.0952 485.2500 747.8452 ] >> endobj 733 0 obj << /Type /Action /S /URI /URI (https://currents.plos.org/disasters/files/2016/02/table1-1.jpg) >> endobj 734 0 obj << /Type /XObject /Subtype /Image /Width 600 /Height 333 /ColorSpace /DeviceRGB /Filter /DCTDecode /BitsPerComponent 8 /Length 43998>> stream JFIF``;CREATOR: gd-jpeg v1.0 (using IJG JPEG v80), quality = 90 C     C   MX" }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr $4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz ??_*n(j?ȾXgS S5?/G-O׬tUrbQE o{:Z3Y?jxg⫕}>WΫ?k:_*Z3Yq)}^/*; zKQ S5?/\qO}>[Χk:_*Ŀ$ڷc~&P8zfomaWEr~֝z{weZ3Y?jxg⫕ը"gU SƟ5?/Wo|AxYbcbNaOa\>+ozxWzV$-pW 9[=*zj šM:sJsv5o>$7u.0FG!iw&_J5(0Rmnz;hiGc2[ܥ\Z& !Fa A=.k8phLJc_@q'S]n~FΣmU~jxgOVWg"u_VI&f@\ jxg⪷?YpGsՍ,=-EݛUUK{.:Z3Y?jxg⫖i8G܌~[Ϋk:_*/ŷzG?iwod#+m#)UxF%J[>֍zW;u,3zKR zKW*:Qmj?Ⱦeu_C܃K~._iڰ _ɹc* @Y> S5?/Uo?A?'{kֱmRT׾]_c?k:_*|3Oa$U{HR@g$1SN%t$2i P6 ۺpGci64.-O׬tUqg)W9c lU?B$僃g|Y?sUa)3\|Y O+7!#G18KEtQ@ E/4RoA^3Yz-P> *It\zBE5ˑ̊qO]͗;+H 43؆o4`?8w]h|d^ ƹy䉧8xa!S-N&RQSgC*Gw`9$F+T{%p?݂ʼ̠N k[xoG?3,(I;烒G{o',:NJuc#&@MiPܯ͍v%SQKPo0- FY:Lv$hsNzE,>x֑TnDrG;F} +>26.to-y-u)Yn$rQhmy˽^[OzݥO4TO~ZM}u /=8RY؜MOiZ^ʷ?v8* E n0rVwFI9$ܑŇᮩwue [b S e/. d9+W{{ae˜c-xi+*WwIia]b,B$#ΝdYGRI];qi 5;_b%NOw!]|Ia+Ϟ|Ağѭ[?/G%'SNoj$MY4&9"hh~IY9it &{fi 3=C5`r'h{[]U]4`7 AHV iuŲGF$%eu2ܑ2#'%N:?w{fh%3V: -mSl7pǵg2d&՞݋pWٻr2zvx魭5KxLV3?ܜ3fE ma[uKF7}~apgm?'ٕffEp`#*~k̐jz%6z(ZCȿ/V%.ڲk'WIE}—S@]2o"Urɾ)OP;QxSi2YV5`>tn-%/>!O5O,W*ojFkz(gJľ m(Rܣ fUGBýfxC^7K-Nuxl- Wf1HİF_Q\g`oYkYv &N.+$m/يP~.!,8rs=tnl!YK8Fn-:&Ć/1a[.02$ٟA){EgTeg\y׵i|QMȜrHjі1w*M;_%Iomw)=2V? 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Emergency authorities can, for instance, publish question regarding different issues related to specific risk in their )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(feed \(e.g. lifesaving behavior in wild-fire\) and later investigate the discussion followed by post publishing. Research shows that )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(social media discussions tend to be topic dependent)] TJ ET 0.267 0.267 0.267 rg BT 251.699 745.174 Td /F4 8.7 Tf [(92)] TJ ET 0.271 0.267 0.267 rg BT 261.337 747.555 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.746 745.174 Td /F4 8.7 Tf [(93)] TJ ET 0.271 0.267 0.267 rg BT 273.383 743.667 Td /F1 9.8 Tf [(, especially when the page posts direct questions and asks the general )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(public to discuss an issue. 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Using lexical approach)] TJ ET 0.267 0.267 0.267 rg BT 252.226 646.841 Td /F4 8.7 Tf [(96)] TJ ET 0.271 0.267 0.267 rg BT 261.863 645.333 Td /F1 9.8 Tf [( and psycholinguistic tools)] TJ ET 0.267 0.267 0.267 rg BT 375.119 646.841 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 384.756 645.333 Td /F1 9.8 Tf [(, crisis managers can analyze messages )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(from different perspectives from syntactic features of the text and various word meaning categories \(e.g. LIWC categories\). We )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(propose that integration of such tools would enable to observe whether all pre-designed crisis messages are adapted to the )] TJ ET BT 26.250 609.619 Td /F1 9.8 Tf [(target audience communication capacities.)] TJ ET BT 26.250 590.214 Td /F4 9.8 Tf [(Affected public opining mining.)] TJ ET BT 26.250 570.810 Td /F1 9.8 Tf [(To gain feedback from the affected public, one should monitor social media and extract signs from citizen who speak and )] TJ ET BT 26.250 558.905 Td /F1 9.8 Tf [(discuss the emergency. Temnikova et al.)] TJ ET 0.267 0.267 0.267 rg BT 202.900 560.412 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 212.538 558.905 Td /F1 9.8 Tf [( presented a terminological resource, EMTerms, which include over 7,000 terms )] TJ ET BT 26.250 547.000 Td /F1 9.8 Tf [(used in Twitter to describe various crises, classified into 23 information-specific categories \(e.g. caution and advice, )] TJ ET BT 26.250 535.095 Td /F1 9.8 Tf [(infrastructure damage, supplies needed or offered, personal updates, safety and security and more\). Such resource can assist )] TJ ET BT 26.250 523.191 Td /F1 9.8 Tf [(decision makers monitor different categories of information, and later communicate to the public on the most prominent )] TJ ET BT 26.250 511.286 Td /F1 9.8 Tf [(information. Once information is retrieved, automated text analytical approaches, like opinion mining, can assist in capturing )] TJ ET BT 26.250 499.381 Td /F1 9.8 Tf [(publics perceptions. Opinion mining refers to the extraction of emotion, appraisal and opinion words that are associated with )] TJ ET BT 26.250 487.476 Td /F1 9.8 Tf [(certain social issue, people or entity \(e.g. product, public figure, and event\) and the classification of the words into different )] TJ ET BT 26.250 475.572 Td /F1 9.8 Tf [(opinion categories \(e.g. positive vs. negative, support vs. against\))] TJ ET 0.267 0.267 0.267 rg BT 308.591 477.079 Td /F4 8.7 Tf [(97)] TJ ET 0.271 0.267 0.267 rg BT 318.228 475.572 Td /F1 9.8 Tf [(. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 355.083 477.079 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 364.720 475.572 Td /F1 9.8 Tf [( argued that capturing publics perceptions are )] TJ ET BT 26.250 463.667 Td /F1 9.8 Tf [(important due to the tight association between beliefs and actions. He adds that monitoring publics risk perceptions and opinion )] TJ ET BT 26.250 451.762 Td /F1 9.8 Tf [(prior and during crisis is essential for crisis response and message adaptation to publics needs and concerns. This text analysis )] TJ ET BT 26.250 439.857 Td /F1 9.8 Tf [(procedure has various application in a review summarization & classification, market and brand analysis)] TJ ET 0.267 0.267 0.267 rg BT 474.370 441.365 Td /F4 8.7 Tf [(98)] TJ ET 0.271 0.267 0.267 rg BT 484.007 439.857 Td /F1 9.8 Tf [(, political opinion )] TJ ET BT 26.250 427.953 Td /F1 9.8 Tf [(analysis and decision making. Opinion and sentiment classification is performed on a document and sentence levels by )] TJ ET BT 26.250 416.048 Td /F1 9.8 Tf [(extracting relevant features \(e.g. single and/or multiple words, emoticons\) from the text and applying computational techniques )] TJ ET BT 26.250 404.143 Td /F1 9.8 Tf [(for estimating the overall polarity or direction of the text. The most common methodology involves pre-defined sentiment or )] TJ ET BT 26.250 392.238 Td /F1 9.8 Tf [(opinion lexicons that carry thousands of domain-specific words, or machine learning techniques that use supervised learning for )] TJ ET BT 26.250 380.334 Td /F1 9.8 Tf [(sentiment classification.. In the context of natural/human made disasters, the assessment of sentiment is somehow scarce. )] TJ ET BT 26.250 368.429 Td /F1 9.8 Tf [(Nagy, Valley, & Stamberger)] TJ ET 0.267 0.267 0.267 rg BT 146.546 369.936 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 156.183 368.429 Td /F1 9.8 Tf [( compared methods for evaluating sentiment in disaster microblogs and explored patterns of )] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(change in emotion of the crowd during a technological disaster. Unfortunately, assessment of sentiment towards the general )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(crisis event provides only partial information for crisis communication practitioners regarding crowd opinion, since it is not )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(matched to specific risk or issue, and more)] TJ ET BT 26.250 313.310 Td /F1 9.8 Tf [(In the case of health crisis and pandemics, however, considerable research is found. For instance, in the case of swine flu )] TJ ET BT 26.250 301.405 Td /F1 9.8 Tf [(pandemic, Salath & Khandelwal)] TJ ET 0.267 0.267 0.267 rg BT 169.321 302.912 Td /F4 8.7 Tf [(100)] TJ ET 0.271 0.267 0.267 rg BT 183.778 301.405 Td /F1 9.8 Tf [( used publicly available data from users of online social media and measured spatial-)] TJ ET BT 26.250 289.500 Td /F1 9.8 Tf [(temporal sentiment towards a new vaccine over a period of six months. They further found strong correlation between )] TJ ET BT 26.250 277.596 Td /F1 9.8 Tf [(sentiments expressed online and CDC-estimated vaccination rates by geographical region. This provides good example of how )] TJ ET BT 26.250 265.691 Td /F1 9.8 Tf [(policy makers can use publicly available data to learn about publics perception regarding risk and its related behaviors.)] TJ ET BT 26.250 246.286 Td /F4 9.8 Tf [(Misunderstanding/Rumors Corrections)] TJ ET BT 207.190 246.286 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 226.881 Td /F1 9.8 Tf [(Possibly one of the most researched topics in the domain of disaster computing and social media research during crisis, is )] TJ ET BT 26.250 214.977 Td /F1 9.8 Tf [(information credibility)] TJ ET 0.267 0.267 0.267 rg BT 117.812 216.484 Td /F4 8.7 Tf [(101)] TJ ET 0.271 0.267 0.267 rg BT 132.268 218.865 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 134.678 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 149.134 214.977 Td /F1 9.8 Tf [(. Castillo et al.)] TJ ET 0.267 0.267 0.267 rg BT 210.364 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 224.820 214.977 Td /F1 9.8 Tf [( analyzed information credibility of news propagated through Twitter and )] TJ ET BT 26.250 203.072 Td /F1 9.8 Tf [(suggested that by using automated methods a tweet can be classified with up to 80% precision as being credible or not. Their )] TJ ET BT 26.250 191.167 Td /F1 9.8 Tf [(automatic credibility estimation was done by extracting message-based features \(e.g. text length, sentiment ratio in the text, )] TJ ET BT 26.250 179.262 Td /F1 9.8 Tf [(inclusion of hashtag\), user-based features, topic-based \(e.g. aggregates computed based on message and user based )] TJ ET BT 26.250 167.358 Td /F1 9.8 Tf [(features\), and propagation-based features \(e.g. depth of a retweet in the network of message spread, initial tweets per topic\).)] TJ ET BT 26.250 147.953 Td /F4 9.8 Tf [(Evaluat)] TJ ET BT 60.931 147.953 Td /F4 9.8 Tf [(ion and assessment of responses, including the effectiveness of communication.)] TJ ET BT 26.250 128.548 Td /F1 9.8 Tf [(Similarly to the previous section, evaluation of public responses can be achieved through continuous social media monitoring )] TJ ET BT 26.250 116.643 Td /F1 9.8 Tf [(using opinion mining, to infer on concerns, panics, and the emotional impacts of interactions among social media users)] TJ ET 0.267 0.267 0.267 rg BT 538.349 118.151 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 552.805 116.643 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 104.739 Td /F1 9.8 Tf [(Recent studies demonstrated capabilities to track changes in sentiments of affected public during natural disasters)] TJ ET 0.267 0.267 0.267 rg BT 518.849 106.246 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 528.487 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.896 106.246 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 545.352 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 547.761 106.246 Td /F4 8.7 Tf [(104)] TJ ET 0.271 0.267 0.267 rg BT 562.217 104.739 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 68.136 Td /F4 12.0 Tf [(Proposed Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET BT 26.250 48.182 Td /F1 9.8 Tf [(In the above paragraphs, we described how advanced analytical tools can be integrated in the processes and aims of crisis )] TJ ET BT 26.250 36.277 Td /F1 9.8 Tf [(communication. We suggest that the availability of the computational techniques can improve communication with the public by )] TJ ET Q q 15.000 21.991 577.500 755.009 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(discussions. Emergency authorities can, for instance, publish question regarding different issues related to specific risk in their )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(feed \(e.g. lifesaving behavior in wild-fire\) and later investigate the discussion followed by post publishing. Research shows that )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(social media discussions tend to be topic dependent)] TJ ET 0.267 0.267 0.267 rg BT 251.699 745.174 Td /F4 8.7 Tf [(92)] TJ ET 0.271 0.267 0.267 rg BT 261.337 747.555 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.746 745.174 Td /F4 8.7 Tf [(93)] TJ ET 0.271 0.267 0.267 rg BT 273.383 743.667 Td /F1 9.8 Tf [(, especially when the page posts direct questions and asks the general )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(public to discuss an issue. Crisis managers could train text responses over documents that an expert panel would consider as )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(relevant to the original question \(e.g. what is the correct lifesaving behavior during wildfire\), and also classify documents )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(according their answer correctness using Natural Language Processing \(NLP\))] TJ ET 0.267 0.267 0.267 rg BT 362.752 709.460 Td /F4 8.7 Tf [(94)] TJ ET 0.271 0.267 0.267 rg BT 372.389 707.952 Td /F1 9.8 Tf [( and classification algorithms)] TJ ET 0.267 0.267 0.267 rg BT 497.014 709.460 Td /F4 8.7 Tf [(86)] TJ ET 0.271 0.267 0.267 rg BT 506.651 707.952 Td /F1 9.8 Tf [(. Overview level )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(of the public understanding of risk, based on social media discussion, then could be visualized using simple pie charts.)] TJ ET BT 26.250 676.643 Td /F4 9.8 Tf [(Message development in crisis communication.)] TJ ET BT 26.250 657.238 Td /F1 9.8 Tf [(Based on the variety of approaches presented above, this aspect can be aided by discourse analysis)] TJ ET 0.267 0.267 0.267 rg BT 460.895 658.745 Td /F4 8.7 Tf [(95)] TJ ET 0.271 0.267 0.267 rg BT 470.533 657.238 Td /F1 9.8 Tf [(, linguistic analysis and )] TJ ET BT 26.250 645.333 Td /F1 9.8 Tf [(natural language processing. Using lexical approach)] TJ ET 0.267 0.267 0.267 rg BT 252.226 646.841 Td /F4 8.7 Tf [(96)] TJ ET 0.271 0.267 0.267 rg BT 261.863 645.333 Td /F1 9.8 Tf [( and psycholinguistic tools)] TJ ET 0.267 0.267 0.267 rg BT 375.119 646.841 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 384.756 645.333 Td /F1 9.8 Tf [(, crisis managers can analyze messages )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(from different perspectives from syntactic features of the text and various word meaning categories \(e.g. LIWC categories\). We )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(propose that integration of such tools would enable to observe whether all pre-designed crisis messages are adapted to the )] TJ ET BT 26.250 609.619 Td /F1 9.8 Tf [(target audience communication capacities.)] TJ ET BT 26.250 590.214 Td /F4 9.8 Tf [(Affected public opining mining.)] TJ ET BT 26.250 570.810 Td /F1 9.8 Tf [(To gain feedback from the affected public, one should monitor social media and extract signs from citizen who speak and )] TJ ET BT 26.250 558.905 Td /F1 9.8 Tf [(discuss the emergency. Temnikova et al.)] TJ ET 0.267 0.267 0.267 rg BT 202.900 560.412 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 212.538 558.905 Td /F1 9.8 Tf [( presented a terminological resource, EMTerms, which include over 7,000 terms )] TJ ET BT 26.250 547.000 Td /F1 9.8 Tf [(used in Twitter to describe various crises, classified into 23 information-specific categories \(e.g. caution and advice, )] TJ ET BT 26.250 535.095 Td /F1 9.8 Tf [(infrastructure damage, supplies needed or offered, personal updates, safety and security and more\). Such resource can assist )] TJ ET BT 26.250 523.191 Td /F1 9.8 Tf [(decision makers monitor different categories of information, and later communicate to the public on the most prominent )] TJ ET BT 26.250 511.286 Td /F1 9.8 Tf [(information. Once information is retrieved, automated text analytical approaches, like opinion mining, can assist in capturing )] TJ ET BT 26.250 499.381 Td /F1 9.8 Tf [(publics perceptions. Opinion mining refers to the extraction of emotion, appraisal and opinion words that are associated with )] TJ ET BT 26.250 487.476 Td /F1 9.8 Tf [(certain social issue, people or entity \(e.g. product, public figure, and event\) and the classification of the words into different )] TJ ET BT 26.250 475.572 Td /F1 9.8 Tf [(opinion categories \(e.g. positive vs. negative, support vs. against\))] TJ ET 0.267 0.267 0.267 rg BT 308.591 477.079 Td /F4 8.7 Tf [(97)] TJ ET 0.271 0.267 0.267 rg BT 318.228 475.572 Td /F1 9.8 Tf [(. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 355.083 477.079 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 364.720 475.572 Td /F1 9.8 Tf [( argued that capturing publics perceptions are )] TJ ET BT 26.250 463.667 Td /F1 9.8 Tf [(important due to the tight association between beliefs and actions. He adds that monitoring publics risk perceptions and opinion )] TJ ET BT 26.250 451.762 Td /F1 9.8 Tf [(prior and during crisis is essential for crisis response and message adaptation to publics needs and concerns. This text analysis )] TJ ET BT 26.250 439.857 Td /F1 9.8 Tf [(procedure has various application in a review summarization & classification, market and brand analysis)] TJ ET 0.267 0.267 0.267 rg BT 474.370 441.365 Td /F4 8.7 Tf [(98)] TJ ET 0.271 0.267 0.267 rg BT 484.007 439.857 Td /F1 9.8 Tf [(, political opinion )] TJ ET BT 26.250 427.953 Td /F1 9.8 Tf [(analysis and decision making. Opinion and sentiment classification is performed on a document and sentence levels by )] TJ ET BT 26.250 416.048 Td /F1 9.8 Tf [(extracting relevant features \(e.g. single and/or multiple words, emoticons\) from the text and applying computational techniques )] TJ ET BT 26.250 404.143 Td /F1 9.8 Tf [(for estimating the overall polarity or direction of the text. The most common methodology involves pre-defined sentiment or )] TJ ET BT 26.250 392.238 Td /F1 9.8 Tf [(opinion lexicons that carry thousands of domain-specific words, or machine learning techniques that use supervised learning for )] TJ ET BT 26.250 380.334 Td /F1 9.8 Tf [(sentiment classification.. In the context of natural/human made disasters, the assessment of sentiment is somehow scarce. )] TJ ET BT 26.250 368.429 Td /F1 9.8 Tf [(Nagy, Valley, & Stamberger)] TJ ET 0.267 0.267 0.267 rg BT 146.546 369.936 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 156.183 368.429 Td /F1 9.8 Tf [( compared methods for evaluating sentiment in disaster microblogs and explored patterns of )] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(change in emotion of the crowd during a technological disaster. Unfortunately, assessment of sentiment towards the general )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(crisis event provides only partial information for crisis communication practitioners regarding crowd opinion, since it is not )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(matched to specific risk or issue, and more)] TJ ET BT 26.250 313.310 Td /F1 9.8 Tf [(In the case of health crisis and pandemics, however, considerable research is found. For instance, in the case of swine flu )] TJ ET BT 26.250 301.405 Td /F1 9.8 Tf [(pandemic, Salath & Khandelwal)] TJ ET 0.267 0.267 0.267 rg BT 169.321 302.912 Td /F4 8.7 Tf [(100)] TJ ET 0.271 0.267 0.267 rg BT 183.778 301.405 Td /F1 9.8 Tf [( used publicly available data from users of online social media and measured spatial-)] TJ ET BT 26.250 289.500 Td /F1 9.8 Tf [(temporal sentiment towards a new vaccine over a period of six months. They further found strong correlation between )] TJ ET BT 26.250 277.596 Td /F1 9.8 Tf [(sentiments expressed online and CDC-estimated vaccination rates by geographical region. This provides good example of how )] TJ ET BT 26.250 265.691 Td /F1 9.8 Tf [(policy makers can use publicly available data to learn about publics perception regarding risk and its related behaviors.)] TJ ET BT 26.250 246.286 Td /F4 9.8 Tf [(Misunderstanding/Rumors Corrections)] TJ ET BT 207.190 246.286 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 226.881 Td /F1 9.8 Tf [(Possibly one of the most researched topics in the domain of disaster computing and social media research during crisis, is )] TJ ET BT 26.250 214.977 Td /F1 9.8 Tf [(information credibility)] TJ ET 0.267 0.267 0.267 rg BT 117.812 216.484 Td /F4 8.7 Tf [(101)] TJ ET 0.271 0.267 0.267 rg BT 132.268 218.865 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 134.678 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 149.134 214.977 Td /F1 9.8 Tf [(. Castillo et al.)] TJ ET 0.267 0.267 0.267 rg BT 210.364 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 224.820 214.977 Td /F1 9.8 Tf [( analyzed information credibility of news propagated through Twitter and )] TJ ET BT 26.250 203.072 Td /F1 9.8 Tf [(suggested that by using automated methods a tweet can be classified with up to 80% precision as being credible or not. Their )] TJ ET BT 26.250 191.167 Td /F1 9.8 Tf [(automatic credibility estimation was done by extracting message-based features \(e.g. text length, sentiment ratio in the text, )] TJ ET BT 26.250 179.262 Td /F1 9.8 Tf [(inclusion of hashtag\), user-based features, topic-based \(e.g. aggregates computed based on message and user based )] TJ ET BT 26.250 167.358 Td /F1 9.8 Tf [(features\), and propagation-based features \(e.g. depth of a retweet in the network of message spread, initial tweets per topic\).)] TJ ET BT 26.250 147.953 Td /F4 9.8 Tf [(Evaluat)] TJ ET BT 60.931 147.953 Td /F4 9.8 Tf [(ion and assessment of responses, including the effectiveness of communication.)] TJ ET BT 26.250 128.548 Td /F1 9.8 Tf [(Similarly to the previous section, evaluation of public responses can be achieved through continuous social media monitoring )] TJ ET BT 26.250 116.643 Td /F1 9.8 Tf [(using opinion mining, to infer on concerns, panics, and the emotional impacts of interactions among social media users)] TJ ET 0.267 0.267 0.267 rg BT 538.349 118.151 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 552.805 116.643 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 104.739 Td /F1 9.8 Tf [(Recent studies demonstrated capabilities to track changes in sentiments of affected public during natural disasters)] TJ ET 0.267 0.267 0.267 rg BT 518.849 106.246 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 528.487 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.896 106.246 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 545.352 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 547.761 106.246 Td /F4 8.7 Tf [(104)] TJ ET 0.271 0.267 0.267 rg BT 562.217 104.739 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 68.136 Td /F4 12.0 Tf [(Proposed Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET BT 26.250 48.182 Td /F1 9.8 Tf [(In the above paragraphs, we described how advanced analytical tools can be integrated in the processes and aims of crisis )] TJ ET BT 26.250 36.277 Td /F1 9.8 Tf [(communication. We suggest that the availability of the computational techniques can improve communication with the public by )] TJ ET Q q 15.000 21.991 577.500 755.009 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(discussions. Emergency authorities can, for instance, publish question regarding different issues related to specific risk in their )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(feed \(e.g. lifesaving behavior in wild-fire\) and later investigate the discussion followed by post publishing. Research shows that )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(social media discussions tend to be topic dependent)] TJ ET 0.267 0.267 0.267 rg BT 251.699 745.174 Td /F4 8.7 Tf [(92)] TJ ET 0.271 0.267 0.267 rg BT 261.337 747.555 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 263.746 745.174 Td /F4 8.7 Tf [(93)] TJ ET 0.271 0.267 0.267 rg BT 273.383 743.667 Td /F1 9.8 Tf [(, especially when the page posts direct questions and asks the general )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(public to discuss an issue. Crisis managers could train text responses over documents that an expert panel would consider as )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(relevant to the original question \(e.g. what is the correct lifesaving behavior during wildfire\), and also classify documents )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(according their answer correctness using Natural Language Processing \(NLP\))] TJ ET 0.267 0.267 0.267 rg BT 362.752 709.460 Td /F4 8.7 Tf [(94)] TJ ET 0.271 0.267 0.267 rg BT 372.389 707.952 Td /F1 9.8 Tf [( and classification algorithms)] TJ ET 0.267 0.267 0.267 rg BT 497.014 709.460 Td /F4 8.7 Tf [(86)] TJ ET 0.271 0.267 0.267 rg BT 506.651 707.952 Td /F1 9.8 Tf [(. Overview level )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(of the public understanding of risk, based on social media discussion, then could be visualized using simple pie charts.)] TJ ET BT 26.250 676.643 Td /F4 9.8 Tf [(Message development in crisis communication.)] TJ ET BT 26.250 657.238 Td /F1 9.8 Tf [(Based on the variety of approaches presented above, this aspect can be aided by discourse analysis)] TJ ET 0.267 0.267 0.267 rg BT 460.895 658.745 Td /F4 8.7 Tf [(95)] TJ ET 0.271 0.267 0.267 rg BT 470.533 657.238 Td /F1 9.8 Tf [(, linguistic analysis and )] TJ ET BT 26.250 645.333 Td /F1 9.8 Tf [(natural language processing. Using lexical approach)] TJ ET 0.267 0.267 0.267 rg BT 252.226 646.841 Td /F4 8.7 Tf [(96)] TJ ET 0.271 0.267 0.267 rg BT 261.863 645.333 Td /F1 9.8 Tf [( and psycholinguistic tools)] TJ ET 0.267 0.267 0.267 rg BT 375.119 646.841 Td /F4 8.7 Tf [(53)] TJ ET 0.271 0.267 0.267 rg BT 384.756 645.333 Td /F1 9.8 Tf [(, crisis managers can analyze messages )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(from different perspectives from syntactic features of the text and various word meaning categories \(e.g. LIWC categories\). We )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(propose that integration of such tools would enable to observe whether all pre-designed crisis messages are adapted to the )] TJ ET BT 26.250 609.619 Td /F1 9.8 Tf [(target audience communication capacities.)] TJ ET BT 26.250 590.214 Td /F4 9.8 Tf [(Affected public opining mining.)] TJ ET BT 26.250 570.810 Td /F1 9.8 Tf [(To gain feedback from the affected public, one should monitor social media and extract signs from citizen who speak and )] TJ ET BT 26.250 558.905 Td /F1 9.8 Tf [(discuss the emergency. Temnikova et al.)] TJ ET 0.267 0.267 0.267 rg BT 202.900 560.412 Td /F4 8.7 Tf [(88)] TJ ET 0.271 0.267 0.267 rg BT 212.538 558.905 Td /F1 9.8 Tf [( presented a terminological resource, EMTerms, which include over 7,000 terms )] TJ ET BT 26.250 547.000 Td /F1 9.8 Tf [(used in Twitter to describe various crises, classified into 23 information-specific categories \(e.g. caution and advice, )] TJ ET BT 26.250 535.095 Td /F1 9.8 Tf [(infrastructure damage, supplies needed or offered, personal updates, safety and security and more\). Such resource can assist )] TJ ET BT 26.250 523.191 Td /F1 9.8 Tf [(decision makers monitor different categories of information, and later communicate to the public on the most prominent )] TJ ET BT 26.250 511.286 Td /F1 9.8 Tf [(information. Once information is retrieved, automated text analytical approaches, like opinion mining, can assist in capturing )] TJ ET BT 26.250 499.381 Td /F1 9.8 Tf [(publics perceptions. Opinion mining refers to the extraction of emotion, appraisal and opinion words that are associated with )] TJ ET BT 26.250 487.476 Td /F1 9.8 Tf [(certain social issue, people or entity \(e.g. product, public figure, and event\) and the classification of the words into different )] TJ ET BT 26.250 475.572 Td /F1 9.8 Tf [(opinion categories \(e.g. positive vs. negative, support vs. against\))] TJ ET 0.267 0.267 0.267 rg BT 308.591 477.079 Td /F4 8.7 Tf [(97)] TJ ET 0.271 0.267 0.267 rg BT 318.228 475.572 Td /F1 9.8 Tf [(. Seeger)] TJ ET 0.267 0.267 0.267 rg BT 355.083 477.079 Td /F4 8.7 Tf [(32)] TJ ET 0.271 0.267 0.267 rg BT 364.720 475.572 Td /F1 9.8 Tf [( argued that capturing publics perceptions are )] TJ ET BT 26.250 463.667 Td /F1 9.8 Tf [(important due to the tight association between beliefs and actions. He adds that monitoring publics risk perceptions and opinion )] TJ ET BT 26.250 451.762 Td /F1 9.8 Tf [(prior and during crisis is essential for crisis response and message adaptation to publics needs and concerns. This text analysis )] TJ ET BT 26.250 439.857 Td /F1 9.8 Tf [(procedure has various application in a review summarization & classification, market and brand analysis)] TJ ET 0.267 0.267 0.267 rg BT 474.370 441.365 Td /F4 8.7 Tf [(98)] TJ ET 0.271 0.267 0.267 rg BT 484.007 439.857 Td /F1 9.8 Tf [(, political opinion )] TJ ET BT 26.250 427.953 Td /F1 9.8 Tf [(analysis and decision making. Opinion and sentiment classification is performed on a document and sentence levels by )] TJ ET BT 26.250 416.048 Td /F1 9.8 Tf [(extracting relevant features \(e.g. single and/or multiple words, emoticons\) from the text and applying computational techniques )] TJ ET BT 26.250 404.143 Td /F1 9.8 Tf [(for estimating the overall polarity or direction of the text. The most common methodology involves pre-defined sentiment or )] TJ ET BT 26.250 392.238 Td /F1 9.8 Tf [(opinion lexicons that carry thousands of domain-specific words, or machine learning techniques that use supervised learning for )] TJ ET BT 26.250 380.334 Td /F1 9.8 Tf [(sentiment classification.. In the context of natural/human made disasters, the assessment of sentiment is somehow scarce. )] TJ ET BT 26.250 368.429 Td /F1 9.8 Tf [(Nagy, Valley, & Stamberger)] TJ ET 0.267 0.267 0.267 rg BT 146.546 369.936 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 156.183 368.429 Td /F1 9.8 Tf [( compared methods for evaluating sentiment in disaster microblogs and explored patterns of )] TJ ET BT 26.250 356.524 Td /F1 9.8 Tf [(change in emotion of the crowd during a technological disaster. Unfortunately, assessment of sentiment towards the general )] TJ ET BT 26.250 344.619 Td /F1 9.8 Tf [(crisis event provides only partial information for crisis communication practitioners regarding crowd opinion, since it is not )] TJ ET BT 26.250 332.715 Td /F1 9.8 Tf [(matched to specific risk or issue, and more)] TJ ET BT 26.250 313.310 Td /F1 9.8 Tf [(In the case of health crisis and pandemics, however, considerable research is found. For instance, in the case of swine flu )] TJ ET BT 26.250 301.405 Td /F1 9.8 Tf [(pandemic, Salath & Khandelwal)] TJ ET 0.267 0.267 0.267 rg BT 169.321 302.912 Td /F4 8.7 Tf [(100)] TJ ET 0.271 0.267 0.267 rg BT 183.778 301.405 Td /F1 9.8 Tf [( used publicly available data from users of online social media and measured spatial-)] TJ ET BT 26.250 289.500 Td /F1 9.8 Tf [(temporal sentiment towards a new vaccine over a period of six months. They further found strong correlation between )] TJ ET BT 26.250 277.596 Td /F1 9.8 Tf [(sentiments expressed online and CDC-estimated vaccination rates by geographical region. This provides good example of how )] TJ ET BT 26.250 265.691 Td /F1 9.8 Tf [(policy makers can use publicly available data to learn about publics perception regarding risk and its related behaviors.)] TJ ET BT 26.250 246.286 Td /F4 9.8 Tf [(Misunderstanding/Rumors Corrections)] TJ ET BT 207.190 246.286 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 226.881 Td /F1 9.8 Tf [(Possibly one of the most researched topics in the domain of disaster computing and social media research during crisis, is )] TJ ET BT 26.250 214.977 Td /F1 9.8 Tf [(information credibility)] TJ ET 0.267 0.267 0.267 rg BT 117.812 216.484 Td /F4 8.7 Tf [(101)] TJ ET 0.271 0.267 0.267 rg BT 132.268 218.865 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 134.678 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 149.134 214.977 Td /F1 9.8 Tf [(. Castillo et al.)] TJ ET 0.267 0.267 0.267 rg BT 210.364 216.484 Td /F4 8.7 Tf [(102)] TJ ET 0.271 0.267 0.267 rg BT 224.820 214.977 Td /F1 9.8 Tf [( analyzed information credibility of news propagated through Twitter and )] TJ ET BT 26.250 203.072 Td /F1 9.8 Tf [(suggested that by using automated methods a tweet can be classified with up to 80% precision as being credible or not. Their )] TJ ET BT 26.250 191.167 Td /F1 9.8 Tf [(automatic credibility estimation was done by extracting message-based features \(e.g. text length, sentiment ratio in the text, )] TJ ET BT 26.250 179.262 Td /F1 9.8 Tf [(inclusion of hashtag\), user-based features, topic-based \(e.g. aggregates computed based on message and user based )] TJ ET BT 26.250 167.358 Td /F1 9.8 Tf [(features\), and propagation-based features \(e.g. depth of a retweet in the network of message spread, initial tweets per topic\).)] TJ ET BT 26.250 147.953 Td /F4 9.8 Tf [(Evaluat)] TJ ET BT 60.931 147.953 Td /F4 9.8 Tf [(ion and assessment of responses, including the effectiveness of communication.)] TJ ET BT 26.250 128.548 Td /F1 9.8 Tf [(Similarly to the previous section, evaluation of public responses can be achieved through continuous social media monitoring )] TJ ET BT 26.250 116.643 Td /F1 9.8 Tf [(using opinion mining, to infer on concerns, panics, and the emotional impacts of interactions among social media users)] TJ ET 0.267 0.267 0.267 rg BT 538.349 118.151 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 552.805 116.643 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 104.739 Td /F1 9.8 Tf [(Recent studies demonstrated capabilities to track changes in sentiments of affected public during natural disasters)] TJ ET 0.267 0.267 0.267 rg BT 518.849 106.246 Td /F4 8.7 Tf [(99)] TJ ET 0.271 0.267 0.267 rg BT 528.487 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 530.896 106.246 Td /F4 8.7 Tf [(103)] TJ ET 0.271 0.267 0.267 rg BT 545.352 108.627 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 547.761 106.246 Td /F4 8.7 Tf [(104)] TJ ET 0.271 0.267 0.267 rg BT 562.217 104.739 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 68.136 Td /F4 12.0 Tf [(Proposed Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET BT 26.250 48.182 Td /F1 9.8 Tf [(In the above paragraphs, we described how advanced analytical tools can be integrated in the processes and aims of crisis )] TJ ET BT 26.250 36.277 Td /F1 9.8 Tf [(communication. We suggest that the availability of the computational techniques can improve communication with the public by )] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(7)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 784 0 obj << /Type /Annot /Subtype /Link /A 785 0 R /Border [0 0 0] /H /I /Rect [ 251.6993 744.3722 261.3366 753.1905 ] >> endobj 785 0 obj << /Type /Action >> endobj 786 0 obj << /Type /Annot /Subtype /Link /A 787 0 R /Border [0 0 0] /H /I /Rect [ 263.7459 744.3722 273.3833 753.1905 ] >> endobj 787 0 obj << /Type /Action >> endobj 788 0 obj << /Type /Annot /Subtype /Link /A 789 0 R /Border [0 0 0] /H /I /Rect [ 362.7518 708.6579 372.3891 717.4762 ] >> endobj 789 0 obj << /Type /Action >> endobj 790 0 obj << /Type /Annot /Subtype /Link /A 791 0 R /Border [0 0 0] /H /I /Rect [ 497.0136 708.6579 506.6509 717.4762 ] >> endobj 791 0 obj << /Type /Action >> endobj 792 0 obj << /Type /Annot /Subtype /Link /A 793 0 R 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Figure 1 demonstrates how the data posted and shared through social media )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is collected for monitoring, analyzed and prepared for a tailor-made crisis communication.)] TJ ET 0.965 0.965 0.965 rg 26.250 447.286 555.000 298.405 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 745.691 m 581.250 745.691 l 581.250 744.941 l 26.250 744.941 l f 26.250 447.286 m 581.250 447.286 l 581.250 448.036 l 26.250 448.036 l f q 450.000 0 0 253.500 35.250 482.441 cm /I5 Do Q q 35.250 458.536 537.000 17.905 re W n 0.271 0.267 0.267 rg BT 35.250 466.917 Td /F4 9.8 Tf [(Fig. 1: The Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET Q BT 26.250 430.262 Td /F1 9.8 Tf [(In the process, massive amounts of textual user-generated content in social media is continually generated and monitored for )] TJ ET BT 26.250 418.357 Td /F1 9.8 Tf [(crisis or emergency related communication. Once detected, content is collected and transferred to the analytical phase, where it )] TJ ET BT 26.250 406.452 Td /F1 9.8 Tf [(is preprocessed, analyzed according to various text mining analytical methods. The information then is either transferred for )] TJ ET BT 26.250 394.548 Td /F1 9.8 Tf [(reporting where it can be visualized and interpreted or moves to the communication management module. Authorities, crisis )] TJ ET BT 26.250 382.643 Td /F1 9.8 Tf [(managers and designated spokespersons personnel can communicate with the public, using the communication management )] TJ ET BT 26.250 370.738 Td /F1 9.8 Tf [(module, which include a recommender system that proposes matched messages. This sub-system is also responsible for target )] TJ ET BT 26.250 358.833 Td /F1 9.8 Tf [(audience profiling \(i.e. hypertargeting\), that enables accommodated communication to specific groups in the population. Bi-)] TJ ET BT 26.250 346.929 Td /F1 9.8 Tf [(directional communication is then monitored for matching accuracy and secondary messages in the communication. During the )] TJ ET BT 26.250 335.024 Td /F1 9.8 Tf [(conversation, a crisis messaging recommender system formulates messages based on conversation history and the other )] TJ ET BT 26.250 323.119 Td /F1 9.8 Tf [(available parameters.)] TJ ET BT 26.250 303.714 Td /F4 9.8 Tf [(Benefits of Targeted Crisis Communication)] TJ ET BT 26.250 284.310 Td /F1 9.8 Tf [(Automatic categorization of unstructured vital information is of high importance for speeding up disaster management. More )] TJ ET BT 26.250 272.405 Td /F1 9.8 Tf [(precisely, psychosocial information extraction is valuable for decision makers to understand the endurance of the public, public )] TJ ET BT 26.250 260.500 Td /F1 9.8 Tf [(psychological needs and psychological risk, using validated theoretical models in the field of disaster psychology)] TJ ET 0.267 0.267 0.267 rg BT 510.708 262.007 Td /F4 8.7 Tf [(105)] TJ ET 0.271 0.267 0.267 rg BT 525.164 260.500 Td /F1 9.8 Tf [(. Being able )] TJ ET BT 26.250 248.595 Td /F1 9.8 Tf [(to capture these aspects, emergency authorities can be more synchronized with population needs and thus more effective in )] TJ ET BT 26.250 236.691 Td /F1 9.8 Tf [(their response to the public during disaster. By integrating disaster related psychosocial aspects in a command and control )] TJ ET BT 26.250 224.786 Td /F1 9.8 Tf [(disaster management systems, they will be in a better position to manage the situation and speed up recovery.)] TJ ET BT 26.250 205.381 Td /F1 9.8 Tf [(Successful detection of language choice patterns from social media content may assist in guiding the authorities and service )] TJ ET BT 26.250 193.476 Td /F1 9.8 Tf [(providers to respond on the same communication channels of the public, and enhance responsiveness and interactivity. This )] TJ ET BT 26.250 181.572 Td /F1 9.8 Tf [(can further lead to a more cooperative public and enhanced public morale. It is our assumption that such focused messaging )] TJ ET BT 26.250 169.667 Td /F1 9.8 Tf [(may not only improve the reception of the message, but also contribute to the ensuing behavior or compliance which is critical in )] TJ ET BT 26.250 157.762 Td /F1 9.8 Tf [(disasters.)] TJ ET BT 26.250 138.357 Td /F4 9.8 Tf [(Limitations of the present review and currents challenges)] TJ ET BT 26.250 118.953 Td /F1 9.8 Tf [(One should remember that beyond text, additional forms of data are published on social media, sometimes far more influencing, )] TJ ET BT 26.250 107.048 Td /F1 9.8 Tf [(since pictures \(regular photo or meme\) may generate more engagement than other forms of data \(including text and video\))] TJ ET 0.267 0.267 0.267 rg BT 555.149 108.555 Td /F4 8.7 Tf [(106)] TJ ET 0.271 0.267 0.267 rg BT 569.605 107.048 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 95.143 Td /F1 9.8 Tf [(Research documents applicable tools for multimodal analysis of social media content, that include both textual and visual data, )] TJ ET BT 26.250 83.238 Td /F1 9.8 Tf [(e.g. Flicker photos, YouTube videos and more)] TJ ET 0.267 0.267 0.267 rg BT 225.677 84.746 Td /F4 8.7 Tf [(107)] TJ ET 0.271 0.267 0.267 rg BT 240.133 83.238 Td /F1 9.8 Tf [(. Thus, more precise public monitoring could be accomplished when )] TJ ET BT 26.250 71.334 Td /F1 9.8 Tf [(integrating data from different modalities and content qualities, as adjacent task in the crisis communication processes. The )] TJ ET BT 26.250 59.429 Td /F1 9.8 Tf [(above literature focused mainly on text that appears in the social media, that can be extracted and analyzed. As for now, some )] TJ ET BT 26.250 47.524 Td /F1 9.8 Tf [(social media platforms offer easy means of extracting data, like the Twitter Streaming API)] TJ ET 0.267 0.267 0.267 rg BT 412.067 49.031 Td /F4 8.7 Tf [(108)] TJ ET 0.271 0.267 0.267 rg BT 426.523 47.524 Td /F1 9.8 Tf [(. One limitation in social media )] TJ ET Q q 15.000 33.238 577.500 743.762 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(a process of hyper-targeted crisis communication. Figure 1 demonstrates how the data posted and shared through social media )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is collected for monitoring, analyzed and prepared for a tailor-made crisis communication.)] TJ ET 0.965 0.965 0.965 rg 26.250 447.286 555.000 298.405 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 745.691 m 581.250 745.691 l 581.250 744.941 l 26.250 744.941 l f 26.250 447.286 m 581.250 447.286 l 581.250 448.036 l 26.250 448.036 l f q 450.000 0 0 253.500 35.250 482.441 cm /I5 Do Q q 35.250 458.536 537.000 17.905 re W n 0.271 0.267 0.267 rg BT 35.250 466.917 Td /F4 9.8 Tf [(Fig. 1: The Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET Q BT 26.250 430.262 Td /F1 9.8 Tf [(In the process, massive amounts of textual user-generated content in social media is continually generated and monitored for )] TJ ET BT 26.250 418.357 Td /F1 9.8 Tf [(crisis or emergency related communication. Once detected, content is collected and transferred to the analytical phase, where it )] TJ ET BT 26.250 406.452 Td /F1 9.8 Tf [(is preprocessed, analyzed according to various text mining analytical methods. The information then is either transferred for )] TJ ET BT 26.250 394.548 Td /F1 9.8 Tf [(reporting where it can be visualized and interpreted or moves to the communication management module. Authorities, crisis )] TJ ET BT 26.250 382.643 Td /F1 9.8 Tf [(managers and designated spokespersons personnel can communicate with the public, using the communication management )] TJ ET BT 26.250 370.738 Td /F1 9.8 Tf [(module, which include a recommender system that proposes matched messages. This sub-system is also responsible for target )] TJ ET BT 26.250 358.833 Td /F1 9.8 Tf [(audience profiling \(i.e. hypertargeting\), that enables accommodated communication to specific groups in the population. Bi-)] TJ ET BT 26.250 346.929 Td /F1 9.8 Tf [(directional communication is then monitored for matching accuracy and secondary messages in the communication. During the )] TJ ET BT 26.250 335.024 Td /F1 9.8 Tf [(conversation, a crisis messaging recommender system formulates messages based on conversation history and the other )] TJ ET BT 26.250 323.119 Td /F1 9.8 Tf [(available parameters.)] TJ ET BT 26.250 303.714 Td /F4 9.8 Tf [(Benefits of Targeted Crisis Communication)] TJ ET BT 26.250 284.310 Td /F1 9.8 Tf [(Automatic categorization of unstructured vital information is of high importance for speeding up disaster management. More )] TJ ET BT 26.250 272.405 Td /F1 9.8 Tf [(precisely, psychosocial information extraction is valuable for decision makers to understand the endurance of the public, public )] TJ ET BT 26.250 260.500 Td /F1 9.8 Tf [(psychological needs and psychological risk, using validated theoretical models in the field of disaster psychology)] TJ ET 0.267 0.267 0.267 rg BT 510.708 262.007 Td /F4 8.7 Tf [(105)] TJ ET 0.271 0.267 0.267 rg BT 525.164 260.500 Td /F1 9.8 Tf [(. Being able )] TJ ET BT 26.250 248.595 Td /F1 9.8 Tf [(to capture these aspects, emergency authorities can be more synchronized with population needs and thus more effective in )] TJ ET BT 26.250 236.691 Td /F1 9.8 Tf [(their response to the public during disaster. By integrating disaster related psychosocial aspects in a command and control )] TJ ET BT 26.250 224.786 Td /F1 9.8 Tf [(disaster management systems, they will be in a better position to manage the situation and speed up recovery.)] TJ ET BT 26.250 205.381 Td /F1 9.8 Tf [(Successful detection of language choice patterns from social media content may assist in guiding the authorities and service )] TJ ET BT 26.250 193.476 Td /F1 9.8 Tf [(providers to respond on the same communication channels of the public, and enhance responsiveness and interactivity. This )] TJ ET BT 26.250 181.572 Td /F1 9.8 Tf [(can further lead to a more cooperative public and enhanced public morale. It is our assumption that such focused messaging )] TJ ET BT 26.250 169.667 Td /F1 9.8 Tf [(may not only improve the reception of the message, but also contribute to the ensuing behavior or compliance which is critical in )] TJ ET BT 26.250 157.762 Td /F1 9.8 Tf [(disasters.)] TJ ET BT 26.250 138.357 Td /F4 9.8 Tf [(Limitations of the present review and currents challenges)] TJ ET BT 26.250 118.953 Td /F1 9.8 Tf [(One should remember that beyond text, additional forms of data are published on social media, sometimes far more influencing, )] TJ ET BT 26.250 107.048 Td /F1 9.8 Tf [(since pictures \(regular photo or meme\) may generate more engagement than other forms of data \(including text and video\))] TJ ET 0.267 0.267 0.267 rg BT 555.149 108.555 Td /F4 8.7 Tf [(106)] TJ ET 0.271 0.267 0.267 rg BT 569.605 107.048 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 95.143 Td /F1 9.8 Tf [(Research documents applicable tools for multimodal analysis of social media content, that include both textual and visual data, )] TJ ET BT 26.250 83.238 Td /F1 9.8 Tf [(e.g. Flicker photos, YouTube videos and more)] TJ ET 0.267 0.267 0.267 rg BT 225.677 84.746 Td /F4 8.7 Tf [(107)] TJ ET 0.271 0.267 0.267 rg BT 240.133 83.238 Td /F1 9.8 Tf [(. Thus, more precise public monitoring could be accomplished when )] TJ ET BT 26.250 71.334 Td /F1 9.8 Tf [(integrating data from different modalities and content qualities, as adjacent task in the crisis communication processes. The )] TJ ET BT 26.250 59.429 Td /F1 9.8 Tf [(above literature focused mainly on text that appears in the social media, that can be extracted and analyzed. As for now, some )] TJ ET BT 26.250 47.524 Td /F1 9.8 Tf [(social media platforms offer easy means of extracting data, like the Twitter Streaming API)] TJ ET 0.267 0.267 0.267 rg BT 412.067 49.031 Td /F4 8.7 Tf [(108)] TJ ET 0.271 0.267 0.267 rg BT 426.523 47.524 Td /F1 9.8 Tf [(. One limitation in social media )] TJ ET Q q 15.000 33.238 577.500 743.762 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(a process of hyper-targeted crisis communication. Figure 1 demonstrates how the data posted and shared through social media )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is collected for monitoring, analyzed and prepared for a tailor-made crisis communication.)] TJ ET 0.965 0.965 0.965 rg 26.250 447.286 555.000 298.405 re f 0.267 0.267 0.267 rg 0.267 0.267 0.267 RG 26.250 745.691 m 581.250 745.691 l 581.250 744.941 l 26.250 744.941 l f 26.250 447.286 m 581.250 447.286 l 581.250 448.036 l 26.250 448.036 l f q 450.000 0 0 253.500 35.250 482.441 cm /I5 Do Q q 35.250 458.536 537.000 17.905 re W n 0.271 0.267 0.267 rg BT 35.250 466.917 Td /F4 9.8 Tf [(Fig. 1: The Process of Hyper-targeted Crisis Communication in Social Media \(HCCS\))] TJ ET Q BT 26.250 430.262 Td /F1 9.8 Tf [(In the process, massive amounts of textual user-generated content in social media is continually generated and monitored for )] TJ ET BT 26.250 418.357 Td /F1 9.8 Tf [(crisis or emergency related communication. Once detected, content is collected and transferred to the analytical phase, where it )] TJ ET BT 26.250 406.452 Td /F1 9.8 Tf [(is preprocessed, analyzed according to various text mining analytical methods. The information then is either transferred for )] TJ ET BT 26.250 394.548 Td /F1 9.8 Tf [(reporting where it can be visualized and interpreted or moves to the communication management module. Authorities, crisis )] TJ ET BT 26.250 382.643 Td /F1 9.8 Tf [(managers and designated spokespersons personnel can communicate with the public, using the communication management )] TJ ET BT 26.250 370.738 Td /F1 9.8 Tf [(module, which include a recommender system that proposes matched messages. This sub-system is also responsible for target )] TJ ET BT 26.250 358.833 Td /F1 9.8 Tf [(audience profiling \(i.e. hypertargeting\), that enables accommodated communication to specific groups in the population. Bi-)] TJ ET BT 26.250 346.929 Td /F1 9.8 Tf [(directional communication is then monitored for matching accuracy and secondary messages in the communication. During the )] TJ ET BT 26.250 335.024 Td /F1 9.8 Tf [(conversation, a crisis messaging recommender system formulates messages based on conversation history and the other )] TJ ET BT 26.250 323.119 Td /F1 9.8 Tf [(available parameters.)] TJ ET BT 26.250 303.714 Td /F4 9.8 Tf [(Benefits of Targeted Crisis Communication)] TJ ET BT 26.250 284.310 Td /F1 9.8 Tf [(Automatic categorization of unstructured vital information is of high importance for speeding up disaster management. More )] TJ ET BT 26.250 272.405 Td /F1 9.8 Tf [(precisely, psychosocial information extraction is valuable for decision makers to understand the endurance of the public, public )] TJ ET BT 26.250 260.500 Td /F1 9.8 Tf [(psychological needs and psychological risk, using validated theoretical models in the field of disaster psychology)] TJ ET 0.267 0.267 0.267 rg BT 510.708 262.007 Td /F4 8.7 Tf [(105)] TJ ET 0.271 0.267 0.267 rg BT 525.164 260.500 Td /F1 9.8 Tf [(. Being able )] TJ ET BT 26.250 248.595 Td /F1 9.8 Tf [(to capture these aspects, emergency authorities can be more synchronized with population needs and thus more effective in )] TJ ET BT 26.250 236.691 Td /F1 9.8 Tf [(their response to the public during disaster. By integrating disaster related psychosocial aspects in a command and control )] TJ ET BT 26.250 224.786 Td /F1 9.8 Tf [(disaster management systems, they will be in a better position to manage the situation and speed up recovery.)] TJ ET BT 26.250 205.381 Td /F1 9.8 Tf [(Successful detection of language choice patterns from social media content may assist in guiding the authorities and service )] TJ ET BT 26.250 193.476 Td /F1 9.8 Tf [(providers to respond on the same communication channels of the public, and enhance responsiveness and interactivity. This )] TJ ET BT 26.250 181.572 Td /F1 9.8 Tf [(can further lead to a more cooperative public and enhanced public morale. It is our assumption that such focused messaging )] TJ ET BT 26.250 169.667 Td /F1 9.8 Tf [(may not only improve the reception of the message, but also contribute to the ensuing behavior or compliance which is critical in )] TJ ET BT 26.250 157.762 Td /F1 9.8 Tf [(disasters.)] TJ ET BT 26.250 138.357 Td /F4 9.8 Tf [(Limitations of the present review and currents challenges)] TJ ET BT 26.250 118.953 Td /F1 9.8 Tf [(One should remember that beyond text, additional forms of data are published on social media, sometimes far more influencing, )] TJ ET BT 26.250 107.048 Td /F1 9.8 Tf [(since pictures \(regular photo or meme\) may generate more engagement than other forms of data \(including text and video\))] TJ ET 0.267 0.267 0.267 rg BT 555.149 108.555 Td /F4 8.7 Tf [(106)] TJ ET 0.271 0.267 0.267 rg BT 569.605 107.048 Td /F1 9.8 Tf [(. )] TJ ET BT 26.250 95.143 Td /F1 9.8 Tf [(Research documents applicable tools for multimodal analysis of social media content, that include both textual and visual data, )] TJ ET BT 26.250 83.238 Td /F1 9.8 Tf [(e.g. Flicker photos, YouTube videos and more)] TJ ET 0.267 0.267 0.267 rg BT 225.677 84.746 Td /F4 8.7 Tf [(107)] TJ ET 0.271 0.267 0.267 rg BT 240.133 83.238 Td /F1 9.8 Tf [(. Thus, more precise public monitoring could be accomplished when )] TJ ET BT 26.250 71.334 Td /F1 9.8 Tf [(integrating data from different modalities and content qualities, as adjacent task in the crisis communication processes. The )] TJ ET BT 26.250 59.429 Td /F1 9.8 Tf [(above literature focused mainly on text that appears in the social media, that can be extracted and analyzed. As for now, some )] TJ ET BT 26.250 47.524 Td /F1 9.8 Tf [(social media platforms offer easy means of extracting data, like the Twitter Streaming API)] TJ ET 0.267 0.267 0.267 rg BT 412.067 49.031 Td /F4 8.7 Tf [(108)] TJ ET 0.271 0.267 0.267 rg BT 426.523 47.524 Td /F1 9.8 Tf [(. 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This limitation )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is restricting research institutes and companies to obtain public posts, in a similar way that is available in Twitter. It is possible, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(though, to extract data from Fan Pages and Groups using publically available applications, like NetVizz)] TJ ET 0.267 0.267 0.267 rg BT 469.534 745.174 Td /F4 8.7 Tf [(109)] TJ ET 0.271 0.267 0.267 rg BT 483.990 743.667 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Decision makers should not solely rely on text analytics in social media when doing crisis communication. Though social media )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(is very popular and has very high penetration rate)] TJ ET 0.267 0.267 0.267 rg BT 240.311 713.864 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 249.949 712.357 Td /F1 9.8 Tf [(, some social and age groups in the population are not connected to the )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(internet)] TJ ET 0.267 0.267 0.267 rg BT 58.766 701.960 Td /F4 8.7 Tf [(110)] TJ ET 0.271 0.267 0.267 rg BT 73.222 700.452 Td /F1 9.8 Tf [(. As this population tends to receive the information and guidelines during real time emergency via TV, radio, )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(newspaper and word-of-mouth -the instructions will still need to use traditional means of mass communication..)] TJ ET BT 26.250 669.143 Td /F1 9.8 Tf [(Despite recent anecdotal reports indicating that authorities \(e.g. Home-front command\) increase their presence in the social )] TJ ET BT 26.250 657.238 Td /F1 9.8 Tf [(media and continuously interact with the public in times of calm and emergency, still authorities prefer to communicate with the )] TJ ET BT 26.250 645.333 Td /F1 9.8 Tf [(public in non-interactive means. This was previously mentioned as an obstacle for crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 472.195 646.841 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 486.652 645.333 Td /F1 9.8 Tf [( in light of the raising )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(of social media .Nonetheless, decision makers should not solely rely on methods of text analytics and data mining in social )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(media when doing crisis communication and follow a well-organized risk and crisis communication plan)] TJ ET 0.267 0.267 0.267 rg BT 470.012 623.031 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 479.649 621.524 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(It is almost impossible not to consider privacy issues when discussing targeted communication)] TJ ET 0.267 0.267 0.267 rg BT 433.186 603.626 Td /F4 8.7 Tf [(112)] TJ ET 0.271 0.267 0.267 rg BT 447.642 602.119 Td /F1 9.8 Tf [(. Collecting information about )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the behavior of social media users, for research or commercial purposes, is considered invasive by the public as well as )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(inappropriate)] TJ ET 0.267 0.267 0.267 rg BT 83.151 579.817 Td /F4 8.7 Tf [(113)] TJ ET 0.271 0.267 0.267 rg BT 97.607 578.310 Td /F1 9.8 Tf [(. Recently, the use of Facebook as a research platform for massive social experiment)] TJ ET 0.267 0.267 0.267 rg BT 465.543 579.817 Td /F4 8.7 Tf [(114)] TJ ET 0.271 0.267 0.267 rg BT 479.999 578.310 Td /F1 9.8 Tf [(, was criticized for not )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(passing the ethical board and not providing informed consent to the participants. Conversely, Facebook advertising system is )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(using profile information and interests \(extracted from activity patterns of the users\), to deliver targeted messages. Hence, )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(authorities have to deal with this issue using sound legal advice and should address the privacy issues in their communications )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(with the public to build trust and credibility.)] TJ ET BT 26.250 494.088 Td /F4 12.0 Tf [(Recommendations)] TJ ET BT 26.250 474.134 Td /F1 9.8 Tf [(Both user profiling \(i.e. behavioral targeting\) and recommender systems are closely related. In both processes, user preferences )] TJ ET BT 26.250 462.229 Td /F1 9.8 Tf [(are used for content recommendation. However, the application of behavioral-targeted recommendation system in the field of )] TJ ET BT 26.250 450.324 Td /F1 9.8 Tf [(crisis communication is novel and deserves future studies. We propose that behavioral-targeted recommendation systems in )] TJ ET BT 26.250 438.420 Td /F1 9.8 Tf [(the domain of crisis communication would be applied on two levels; public level and decision maker level. On the public level, )] TJ ET BT 26.250 426.515 Td /F1 9.8 Tf [(personalized and adapted crisis messages would pop-up or appear in popular websites and social media based on two possible )] TJ ET BT 26.250 414.610 Td /F1 9.8 Tf [(parameters: 1\) the written content people provide on these sites \(e.g. users public posts, reviews, and participation in talkbacks; )] TJ ET BT 26.250 402.705 Td /F1 9.8 Tf [(2\) user behavior on site such as like/share or re-tweet, or other forms of ratings. This approach would be effective if the )] TJ ET BT 26.250 390.801 Td /F1 9.8 Tf [(user is active and engaged, but also may be relevant for passive users that mainly consume content rather than commenting on )] TJ ET BT 26.250 378.896 Td /F1 9.8 Tf [(it. This proposal will be feasible in social media platforms which allow the tracking of users or has an agreement for data sharing )] TJ ET BT 26.250 366.991 Td /F1 9.8 Tf [(with authoritative bodies. On the decision maker level, designated spokespersons would be assisted by the messaging )] TJ ET BT 26.250 355.086 Td /F1 9.8 Tf [(recommender system to adapt their linguistic style to the user who approaches them \(or vice versa\) thus tailoring the response )] TJ ET BT 26.250 343.182 Td /F1 9.8 Tf [(and assisting people in real-time to get the appropriate help, directions or support.)] TJ ET BT 26.250 323.777 Td /F1 9.8 Tf [(While certain online platforms for communication with the public in emergency were proposed)] TJ ET 0.267 0.267 0.267 rg BT 429.393 325.284 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 443.849 327.665 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 446.258 325.284 Td /F4 8.7 Tf [(115)] TJ ET 0.271 0.267 0.267 rg BT 460.714 323.777 Td /F1 9.8 Tf [( they all significantly lack )] TJ ET BT 26.250 311.872 Td /F1 9.8 Tf [(the user-profiling element, that might be in practice, an important factor in communication efforts)] TJ ET 0.267 0.267 0.267 rg BT 440.255 313.379 Td /F4 8.7 Tf [(116)] TJ ET 0.271 0.267 0.267 rg BT 454.711 311.872 Td /F1 9.8 Tf [(. Future web-based or )] TJ ET BT 26.250 299.967 Td /F1 9.8 Tf [(mobile application-based platforms for disaster risk communication should include user-profiling module, based on different )] TJ ET BT 26.250 288.063 Td /F1 9.8 Tf [(parameters extracted from users published text and data. We suggest social media management tools)] TJ ET 0.267 0.267 0.267 rg BT 469.524 289.570 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 479.161 288.063 Td /F1 9.8 Tf [( as suitable platform )] TJ ET BT 26.250 276.158 Td /F1 9.8 Tf [(for crisis communication, as some of the tools enable the integration of extensions and apps that assist in social media data )] TJ ET BT 26.250 264.253 Td /F1 9.8 Tf [(extraction, analytics and interpretation.)] TJ ET BT 26.250 227.651 Td /F4 12.0 Tf [(Conclusions)] TJ ET BT 26.250 207.696 Td /F1 9.8 Tf [(In very fast pace, social media have acquired a prominent role in media and our daily life)] TJ ET 0.267 0.267 0.267 rg BT 407.748 209.204 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 417.385 207.696 Td /F1 9.8 Tf [(. During crisis and emergency, )] TJ ET BT 26.250 195.792 Td /F1 9.8 Tf [(people tend to approach social media not only because of the need for quick information, but also due to the human tendency )] TJ ET BT 26.250 183.887 Td /F1 9.8 Tf [(for storytelling, which allows people to experience their lives as coherent, orderly and meaningful. It is what makes peoples life )] TJ ET BT 26.250 171.982 Td /F1 9.8 Tf [(more than a blooming, buzzing confusion)] TJ ET 0.267 0.267 0.267 rg BT 204.002 173.489 Td /F4 8.7 Tf [(117)] TJ ET 0.271 0.267 0.267 rg BT 218.458 171.982 Td /F1 9.8 Tf [(. Communication with public during emergency is critical for successful emergency )] TJ ET BT 26.250 160.077 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 161.585 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 97.607 160.077 Td /F1 9.8 Tf [( life saving, rescue and recovery. On the other hand , one should take into account that 2.08 billion people )] TJ ET BT 26.250 148.173 Td /F1 9.8 Tf [(world-wide are social media users)] TJ ET 0.267 0.267 0.267 rg BT 173.075 149.680 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 182.713 148.173 Td /F1 9.8 Tf [( and significant number of people are expected to participate in the online convergence, )] TJ ET BT 26.250 136.268 Td /F1 9.8 Tf [(posting massive amount of user-generated content making it an almost impossible web of information. Using state of the art )] TJ ET BT 26.250 124.363 Td /F1 9.8 Tf [(computational tools makes this mission possible. Being one of the fundamental tools of emergency management)] TJ ET 0.267 0.267 0.267 rg BT 511.264 125.870 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 525.720 124.363 Td /F1 9.8 Tf [(, crisis and )] TJ ET BT 26.250 112.458 Td /F1 9.8 Tf [(risk communication play an important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical )] TJ ET BT 26.250 100.554 Td /F1 9.8 Tf [(incidents and disasters. Thus the task of continues monitoring of the social web for crisis related information can significantly )] TJ ET BT 26.250 88.649 Td /F1 9.8 Tf [(improve the efforts of emergency management. This is the reason for officials to be eager to exploit social media content to gain )] TJ ET BT 26.250 76.744 Td /F1 9.8 Tf [(insight from the public for the optimization of risk and crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 347.025 78.251 Td /F4 8.7 Tf [(119)] TJ ET 0.271 0.267 0.267 rg BT 361.481 76.744 Td /F1 9.8 Tf [(. Risk and crisis communication best practices )] TJ ET BT 26.250 64.839 Td /F1 9.8 Tf [(are well documented and include various tasks during different crisis stages \(e.g. understanding publics characteristics, )] TJ ET BT 26.250 52.935 Td /F1 9.8 Tf [(monitoring emerging risk, feedback from affected publics etc.\). These aims and practices can be improved and become efficient )] TJ ET BT 26.250 41.030 Td /F1 9.8 Tf [(when utilizing linguistic computational tools that can quickly assist decision makers in designing emergency campaigns, or/and )] TJ ET Q q 15.000 26.744 577.500 750.256 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(analysis is the inaccessibility to Facebook public feed API, which is restricted to a limited set of media publishers. This limitation )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is restricting research institutes and companies to obtain public posts, in a similar way that is available in Twitter. It is possible, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(though, to extract data from Fan Pages and Groups using publically available applications, like NetVizz)] TJ ET 0.267 0.267 0.267 rg BT 469.534 745.174 Td /F4 8.7 Tf [(109)] TJ ET 0.271 0.267 0.267 rg BT 483.990 743.667 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Decision makers should not solely rely on text analytics in social media when doing crisis communication. Though social media )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(is very popular and has very high penetration rate)] TJ ET 0.267 0.267 0.267 rg BT 240.311 713.864 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 249.949 712.357 Td /F1 9.8 Tf [(, some social and age groups in the population are not connected to the )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(internet)] TJ ET 0.267 0.267 0.267 rg BT 58.766 701.960 Td /F4 8.7 Tf [(110)] TJ ET 0.271 0.267 0.267 rg BT 73.222 700.452 Td /F1 9.8 Tf [(. As this population tends to receive the information and guidelines during real time emergency via TV, radio, )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(newspaper and word-of-mouth -the instructions will still need to use traditional means of mass communication..)] TJ ET BT 26.250 669.143 Td /F1 9.8 Tf [(Despite recent anecdotal reports indicating that authorities \(e.g. Home-front command\) increase their presence in the social )] TJ ET BT 26.250 657.238 Td /F1 9.8 Tf [(media and continuously interact with the public in times of calm and emergency, still authorities prefer to communicate with the )] TJ ET BT 26.250 645.333 Td /F1 9.8 Tf [(public in non-interactive means. This was previously mentioned as an obstacle for crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 472.195 646.841 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 486.652 645.333 Td /F1 9.8 Tf [( in light of the raising )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(of social media .Nonetheless, decision makers should not solely rely on methods of text analytics and data mining in social )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(media when doing crisis communication and follow a well-organized risk and crisis communication plan)] TJ ET 0.267 0.267 0.267 rg BT 470.012 623.031 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 479.649 621.524 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(It is almost impossible not to consider privacy issues when discussing targeted communication)] TJ ET 0.267 0.267 0.267 rg BT 433.186 603.626 Td /F4 8.7 Tf [(112)] TJ ET 0.271 0.267 0.267 rg BT 447.642 602.119 Td /F1 9.8 Tf [(. Collecting information about )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the behavior of social media users, for research or commercial purposes, is considered invasive by the public as well as )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(inappropriate)] TJ ET 0.267 0.267 0.267 rg BT 83.151 579.817 Td /F4 8.7 Tf [(113)] TJ ET 0.271 0.267 0.267 rg BT 97.607 578.310 Td /F1 9.8 Tf [(. Recently, the use of Facebook as a research platform for massive social experiment)] TJ ET 0.267 0.267 0.267 rg BT 465.543 579.817 Td /F4 8.7 Tf [(114)] TJ ET 0.271 0.267 0.267 rg BT 479.999 578.310 Td /F1 9.8 Tf [(, was criticized for not )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(passing the ethical board and not providing informed consent to the participants. Conversely, Facebook advertising system is )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(using profile information and interests \(extracted from activity patterns of the users\), to deliver targeted messages. Hence, )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(authorities have to deal with this issue using sound legal advice and should address the privacy issues in their communications )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(with the public to build trust and credibility.)] TJ ET BT 26.250 494.088 Td /F4 12.0 Tf [(Recommendations)] TJ ET BT 26.250 474.134 Td /F1 9.8 Tf [(Both user profiling \(i.e. behavioral targeting\) and recommender systems are closely related. In both processes, user preferences )] TJ ET BT 26.250 462.229 Td /F1 9.8 Tf [(are used for content recommendation. However, the application of behavioral-targeted recommendation system in the field of )] TJ ET BT 26.250 450.324 Td /F1 9.8 Tf [(crisis communication is novel and deserves future studies. We propose that behavioral-targeted recommendation systems in )] TJ ET BT 26.250 438.420 Td /F1 9.8 Tf [(the domain of crisis communication would be applied on two levels; public level and decision maker level. On the public level, )] TJ ET BT 26.250 426.515 Td /F1 9.8 Tf [(personalized and adapted crisis messages would pop-up or appear in popular websites and social media based on two possible )] TJ ET BT 26.250 414.610 Td /F1 9.8 Tf [(parameters: 1\) the written content people provide on these sites \(e.g. users public posts, reviews, and participation in talkbacks; )] TJ ET BT 26.250 402.705 Td /F1 9.8 Tf [(2\) user behavior on site such as like/share or re-tweet, or other forms of ratings. This approach would be effective if the )] TJ ET BT 26.250 390.801 Td /F1 9.8 Tf [(user is active and engaged, but also may be relevant for passive users that mainly consume content rather than commenting on )] TJ ET BT 26.250 378.896 Td /F1 9.8 Tf [(it. This proposal will be feasible in social media platforms which allow the tracking of users or has an agreement for data sharing )] TJ ET BT 26.250 366.991 Td /F1 9.8 Tf [(with authoritative bodies. On the decision maker level, designated spokespersons would be assisted by the messaging )] TJ ET BT 26.250 355.086 Td /F1 9.8 Tf [(recommender system to adapt their linguistic style to the user who approaches them \(or vice versa\) thus tailoring the response )] TJ ET BT 26.250 343.182 Td /F1 9.8 Tf [(and assisting people in real-time to get the appropriate help, directions or support.)] TJ ET BT 26.250 323.777 Td /F1 9.8 Tf [(While certain online platforms for communication with the public in emergency were proposed)] TJ ET 0.267 0.267 0.267 rg BT 429.393 325.284 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 443.849 327.665 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 446.258 325.284 Td /F4 8.7 Tf [(115)] TJ ET 0.271 0.267 0.267 rg BT 460.714 323.777 Td /F1 9.8 Tf [( they all significantly lack )] TJ ET BT 26.250 311.872 Td /F1 9.8 Tf [(the user-profiling element, that might be in practice, an important factor in communication efforts)] TJ ET 0.267 0.267 0.267 rg BT 440.255 313.379 Td /F4 8.7 Tf [(116)] TJ ET 0.271 0.267 0.267 rg BT 454.711 311.872 Td /F1 9.8 Tf [(. Future web-based or )] TJ ET BT 26.250 299.967 Td /F1 9.8 Tf [(mobile application-based platforms for disaster risk communication should include user-profiling module, based on different )] TJ ET BT 26.250 288.063 Td /F1 9.8 Tf [(parameters extracted from users published text and data. We suggest social media management tools)] TJ ET 0.267 0.267 0.267 rg BT 469.524 289.570 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 479.161 288.063 Td /F1 9.8 Tf [( as suitable platform )] TJ ET BT 26.250 276.158 Td /F1 9.8 Tf [(for crisis communication, as some of the tools enable the integration of extensions and apps that assist in social media data )] TJ ET BT 26.250 264.253 Td /F1 9.8 Tf [(extraction, analytics and interpretation.)] TJ ET BT 26.250 227.651 Td /F4 12.0 Tf [(Conclusions)] TJ ET BT 26.250 207.696 Td /F1 9.8 Tf [(In very fast pace, social media have acquired a prominent role in media and our daily life)] TJ ET 0.267 0.267 0.267 rg BT 407.748 209.204 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 417.385 207.696 Td /F1 9.8 Tf [(. During crisis and emergency, )] TJ ET BT 26.250 195.792 Td /F1 9.8 Tf [(people tend to approach social media not only because of the need for quick information, but also due to the human tendency )] TJ ET BT 26.250 183.887 Td /F1 9.8 Tf [(for storytelling, which allows people to experience their lives as coherent, orderly and meaningful. It is what makes peoples life )] TJ ET BT 26.250 171.982 Td /F1 9.8 Tf [(more than a blooming, buzzing confusion)] TJ ET 0.267 0.267 0.267 rg BT 204.002 173.489 Td /F4 8.7 Tf [(117)] TJ ET 0.271 0.267 0.267 rg BT 218.458 171.982 Td /F1 9.8 Tf [(. Communication with public during emergency is critical for successful emergency )] TJ ET BT 26.250 160.077 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 161.585 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 97.607 160.077 Td /F1 9.8 Tf [( life saving, rescue and recovery. On the other hand , one should take into account that 2.08 billion people )] TJ ET BT 26.250 148.173 Td /F1 9.8 Tf [(world-wide are social media users)] TJ ET 0.267 0.267 0.267 rg BT 173.075 149.680 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 182.713 148.173 Td /F1 9.8 Tf [( and significant number of people are expected to participate in the online convergence, )] TJ ET BT 26.250 136.268 Td /F1 9.8 Tf [(posting massive amount of user-generated content making it an almost impossible web of information. Using state of the art )] TJ ET BT 26.250 124.363 Td /F1 9.8 Tf [(computational tools makes this mission possible. Being one of the fundamental tools of emergency management)] TJ ET 0.267 0.267 0.267 rg BT 511.264 125.870 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 525.720 124.363 Td /F1 9.8 Tf [(, crisis and )] TJ ET BT 26.250 112.458 Td /F1 9.8 Tf [(risk communication play an important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical )] TJ ET BT 26.250 100.554 Td /F1 9.8 Tf [(incidents and disasters. Thus the task of continues monitoring of the social web for crisis related information can significantly )] TJ ET BT 26.250 88.649 Td /F1 9.8 Tf [(improve the efforts of emergency management. This is the reason for officials to be eager to exploit social media content to gain )] TJ ET BT 26.250 76.744 Td /F1 9.8 Tf [(insight from the public for the optimization of risk and crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 347.025 78.251 Td /F4 8.7 Tf [(119)] TJ ET 0.271 0.267 0.267 rg BT 361.481 76.744 Td /F1 9.8 Tf [(. Risk and crisis communication best practices )] TJ ET BT 26.250 64.839 Td /F1 9.8 Tf [(are well documented and include various tasks during different crisis stages \(e.g. understanding publics characteristics, )] TJ ET BT 26.250 52.935 Td /F1 9.8 Tf [(monitoring emerging risk, feedback from affected publics etc.\). These aims and practices can be improved and become efficient )] TJ ET BT 26.250 41.030 Td /F1 9.8 Tf [(when utilizing linguistic computational tools that can quickly assist decision makers in designing emergency campaigns, or/and )] TJ ET Q q 15.000 26.744 577.500 750.256 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(analysis is the inaccessibility to Facebook public feed API, which is restricted to a limited set of media publishers. This limitation )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(is restricting research institutes and companies to obtain public posts, in a similar way that is available in Twitter. It is possible, )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(though, to extract data from Fan Pages and Groups using publically available applications, like NetVizz)] TJ ET 0.267 0.267 0.267 rg BT 469.534 745.174 Td /F4 8.7 Tf [(109)] TJ ET 0.271 0.267 0.267 rg BT 483.990 743.667 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Decision makers should not solely rely on text analytics in social media when doing crisis communication. Though social media )] TJ ET BT 26.250 712.357 Td /F1 9.8 Tf [(is very popular and has very high penetration rate)] TJ ET 0.267 0.267 0.267 rg BT 240.311 713.864 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 249.949 712.357 Td /F1 9.8 Tf [(, some social and age groups in the population are not connected to the )] TJ ET BT 26.250 700.452 Td /F1 9.8 Tf [(internet)] TJ ET 0.267 0.267 0.267 rg BT 58.766 701.960 Td /F4 8.7 Tf [(110)] TJ ET 0.271 0.267 0.267 rg BT 73.222 700.452 Td /F1 9.8 Tf [(. As this population tends to receive the information and guidelines during real time emergency via TV, radio, )] TJ ET BT 26.250 688.548 Td /F1 9.8 Tf [(newspaper and word-of-mouth -the instructions will still need to use traditional means of mass communication..)] TJ ET BT 26.250 669.143 Td /F1 9.8 Tf [(Despite recent anecdotal reports indicating that authorities \(e.g. Home-front command\) increase their presence in the social )] TJ ET BT 26.250 657.238 Td /F1 9.8 Tf [(media and continuously interact with the public in times of calm and emergency, still authorities prefer to communicate with the )] TJ ET BT 26.250 645.333 Td /F1 9.8 Tf [(public in non-interactive means. This was previously mentioned as an obstacle for crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 472.195 646.841 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 486.652 645.333 Td /F1 9.8 Tf [( in light of the raising )] TJ ET BT 26.250 633.429 Td /F1 9.8 Tf [(of social media .Nonetheless, decision makers should not solely rely on methods of text analytics and data mining in social )] TJ ET BT 26.250 621.524 Td /F1 9.8 Tf [(media when doing crisis communication and follow a well-organized risk and crisis communication plan)] TJ ET 0.267 0.267 0.267 rg BT 470.012 623.031 Td /F4 8.7 Tf [(34)] TJ ET 0.271 0.267 0.267 rg BT 479.649 621.524 Td /F1 9.8 Tf [(.)] TJ ET BT 26.250 602.119 Td /F1 9.8 Tf [(It is almost impossible not to consider privacy issues when discussing targeted communication)] TJ ET 0.267 0.267 0.267 rg BT 433.186 603.626 Td /F4 8.7 Tf [(112)] TJ ET 0.271 0.267 0.267 rg BT 447.642 602.119 Td /F1 9.8 Tf [(. Collecting information about )] TJ ET BT 26.250 590.214 Td /F1 9.8 Tf [(the behavior of social media users, for research or commercial purposes, is considered invasive by the public as well as )] TJ ET BT 26.250 578.310 Td /F1 9.8 Tf [(inappropriate)] TJ ET 0.267 0.267 0.267 rg BT 83.151 579.817 Td /F4 8.7 Tf [(113)] TJ ET 0.271 0.267 0.267 rg BT 97.607 578.310 Td /F1 9.8 Tf [(. Recently, the use of Facebook as a research platform for massive social experiment)] TJ ET 0.267 0.267 0.267 rg BT 465.543 579.817 Td /F4 8.7 Tf [(114)] TJ ET 0.271 0.267 0.267 rg BT 479.999 578.310 Td /F1 9.8 Tf [(, was criticized for not )] TJ ET BT 26.250 566.405 Td /F1 9.8 Tf [(passing the ethical board and not providing informed consent to the participants. Conversely, Facebook advertising system is )] TJ ET BT 26.250 554.500 Td /F1 9.8 Tf [(using profile information and interests \(extracted from activity patterns of the users\), to deliver targeted messages. Hence, )] TJ ET BT 26.250 542.595 Td /F1 9.8 Tf [(authorities have to deal with this issue using sound legal advice and should address the privacy issues in their communications )] TJ ET BT 26.250 530.691 Td /F1 9.8 Tf [(with the public to build trust and credibility.)] TJ ET BT 26.250 494.088 Td /F4 12.0 Tf [(Recommendations)] TJ ET BT 26.250 474.134 Td /F1 9.8 Tf [(Both user profiling \(i.e. behavioral targeting\) and recommender systems are closely related. In both processes, user preferences )] TJ ET BT 26.250 462.229 Td /F1 9.8 Tf [(are used for content recommendation. However, the application of behavioral-targeted recommendation system in the field of )] TJ ET BT 26.250 450.324 Td /F1 9.8 Tf [(crisis communication is novel and deserves future studies. We propose that behavioral-targeted recommendation systems in )] TJ ET BT 26.250 438.420 Td /F1 9.8 Tf [(the domain of crisis communication would be applied on two levels; public level and decision maker level. On the public level, )] TJ ET BT 26.250 426.515 Td /F1 9.8 Tf [(personalized and adapted crisis messages would pop-up or appear in popular websites and social media based on two possible )] TJ ET BT 26.250 414.610 Td /F1 9.8 Tf [(parameters: 1\) the written content people provide on these sites \(e.g. users public posts, reviews, and participation in talkbacks; )] TJ ET BT 26.250 402.705 Td /F1 9.8 Tf [(2\) user behavior on site such as like/share or re-tweet, or other forms of ratings. This approach would be effective if the )] TJ ET BT 26.250 390.801 Td /F1 9.8 Tf [(user is active and engaged, but also may be relevant for passive users that mainly consume content rather than commenting on )] TJ ET BT 26.250 378.896 Td /F1 9.8 Tf [(it. This proposal will be feasible in social media platforms which allow the tracking of users or has an agreement for data sharing )] TJ ET BT 26.250 366.991 Td /F1 9.8 Tf [(with authoritative bodies. On the decision maker level, designated spokespersons would be assisted by the messaging )] TJ ET BT 26.250 355.086 Td /F1 9.8 Tf [(recommender system to adapt their linguistic style to the user who approaches them \(or vice versa\) thus tailoring the response )] TJ ET BT 26.250 343.182 Td /F1 9.8 Tf [(and assisting people in real-time to get the appropriate help, directions or support.)] TJ ET BT 26.250 323.777 Td /F1 9.8 Tf [(While certain online platforms for communication with the public in emergency were proposed)] TJ ET 0.267 0.267 0.267 rg BT 429.393 325.284 Td /F4 8.7 Tf [(111)] TJ ET 0.271 0.267 0.267 rg BT 443.849 327.665 Td /F1 8.7 Tf [(,)] TJ ET 0.267 0.267 0.267 rg BT 446.258 325.284 Td /F4 8.7 Tf [(115)] TJ ET 0.271 0.267 0.267 rg BT 460.714 323.777 Td /F1 9.8 Tf [( they all significantly lack )] TJ ET BT 26.250 311.872 Td /F1 9.8 Tf [(the user-profiling element, that might be in practice, an important factor in communication efforts)] TJ ET 0.267 0.267 0.267 rg BT 440.255 313.379 Td /F4 8.7 Tf [(116)] TJ ET 0.271 0.267 0.267 rg BT 454.711 311.872 Td /F1 9.8 Tf [(. Future web-based or )] TJ ET BT 26.250 299.967 Td /F1 9.8 Tf [(mobile application-based platforms for disaster risk communication should include user-profiling module, based on different )] TJ ET BT 26.250 288.063 Td /F1 9.8 Tf [(parameters extracted from users published text and data. We suggest social media management tools)] TJ ET 0.267 0.267 0.267 rg BT 469.524 289.570 Td /F4 8.7 Tf [(29)] TJ ET 0.271 0.267 0.267 rg BT 479.161 288.063 Td /F1 9.8 Tf [( as suitable platform )] TJ ET BT 26.250 276.158 Td /F1 9.8 Tf [(for crisis communication, as some of the tools enable the integration of extensions and apps that assist in social media data )] TJ ET BT 26.250 264.253 Td /F1 9.8 Tf [(extraction, analytics and interpretation.)] TJ ET BT 26.250 227.651 Td /F4 12.0 Tf [(Conclusions)] TJ ET BT 26.250 207.696 Td /F1 9.8 Tf [(In very fast pace, social media have acquired a prominent role in media and our daily life)] TJ ET 0.267 0.267 0.267 rg BT 407.748 209.204 Td /F4 8.7 Tf [(71)] TJ ET 0.271 0.267 0.267 rg BT 417.385 207.696 Td /F1 9.8 Tf [(. During crisis and emergency, )] TJ ET BT 26.250 195.792 Td /F1 9.8 Tf [(people tend to approach social media not only because of the need for quick information, but also due to the human tendency )] TJ ET BT 26.250 183.887 Td /F1 9.8 Tf [(for storytelling, which allows people to experience their lives as coherent, orderly and meaningful. It is what makes peoples life )] TJ ET BT 26.250 171.982 Td /F1 9.8 Tf [(more than a blooming, buzzing confusion)] TJ ET 0.267 0.267 0.267 rg BT 204.002 173.489 Td /F4 8.7 Tf [(117)] TJ ET 0.271 0.267 0.267 rg BT 218.458 171.982 Td /F1 9.8 Tf [(. Communication with public during emergency is critical for successful emergency )] TJ ET BT 26.250 160.077 Td /F1 9.8 Tf [(management)] TJ ET 0.267 0.267 0.267 rg BT 83.151 161.585 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 97.607 160.077 Td /F1 9.8 Tf [( life saving, rescue and recovery. On the other hand , one should take into account that 2.08 billion people )] TJ ET BT 26.250 148.173 Td /F1 9.8 Tf [(world-wide are social media users)] TJ ET 0.267 0.267 0.267 rg BT 173.075 149.680 Td /F4 8.7 Tf [(11)] TJ ET 0.271 0.267 0.267 rg BT 182.713 148.173 Td /F1 9.8 Tf [( and significant number of people are expected to participate in the online convergence, )] TJ ET BT 26.250 136.268 Td /F1 9.8 Tf [(posting massive amount of user-generated content making it an almost impossible web of information. Using state of the art )] TJ ET BT 26.250 124.363 Td /F1 9.8 Tf [(computational tools makes this mission possible. Being one of the fundamental tools of emergency management)] TJ ET 0.267 0.267 0.267 rg BT 511.264 125.870 Td /F4 8.7 Tf [(118)] TJ ET 0.271 0.267 0.267 rg BT 525.720 124.363 Td /F1 9.8 Tf [(, crisis and )] TJ ET BT 26.250 112.458 Td /F1 9.8 Tf [(risk communication play an important role in mitigating, or exacerbating, the psychological and behavioral reactions to critical )] TJ ET BT 26.250 100.554 Td /F1 9.8 Tf [(incidents and disasters. Thus the task of continues monitoring of the social web for crisis related information can significantly )] TJ ET BT 26.250 88.649 Td /F1 9.8 Tf [(improve the efforts of emergency management. This is the reason for officials to be eager to exploit social media content to gain )] TJ ET BT 26.250 76.744 Td /F1 9.8 Tf [(insight from the public for the optimization of risk and crisis communication)] TJ ET 0.267 0.267 0.267 rg BT 347.025 78.251 Td /F4 8.7 Tf [(119)] TJ ET 0.271 0.267 0.267 rg BT 361.481 76.744 Td /F1 9.8 Tf [(. Risk and crisis communication best practices )] TJ ET BT 26.250 64.839 Td /F1 9.8 Tf [(are well documented and include various tasks during different crisis stages \(e.g. understanding publics characteristics, )] TJ ET BT 26.250 52.935 Td /F1 9.8 Tf [(monitoring emerging risk, feedback from affected publics etc.\). 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Officials should also remember that the most effective )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(communication are those designed for a specific audience)] TJ ET 0.267 0.267 0.267 rg BT 277.156 757.079 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 286.794 755.571 Td /F1 9.8 Tf [(. Research shows that interpersonal communication that is )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(linguistically matched between the communicators is not only more successful, but also reflects our natural tendency to adjust )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(ourselves to the listener. Finally, decision makers and crisis managers need to acknowledge the potential of the massive )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(generated textual information published during times of emergency in the social media. This knowledge is not only beneficial for )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(situational awareness but also for user profiling, which in our case, is not intended for marketing purposes. Behavioral analyzed )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(information from text posted on social media can leverage targeted communication during crisis, by automatic target audience )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(characterization and adapted, psycholinguisticly matched risk message preparation. Thus, as we keep facing major disasters )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(and emergencies that have became more frequent during the last decade, governments can be more effective in transmission )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(and dissemination of warning messages or/and survival information, better manage different public reactions triggered by the )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(crisis, gain credibility from the public, and improve public cooperation during emergencies.)] TJ ET BT 26.250 611.826 Td /F4 12.0 Tf [(Competing Interests Statement)] TJ ET BT 26.250 591.872 Td /F1 9.8 Tf [(The authors have declared that no competing interests exist.)] TJ ET BT 26.250 555.269 Td /F4 12.0 Tf [(References)] TJ ET BT 26.250 527.815 Td /F1 9.8 Tf [(1.)] TJ ET BT 38.132 527.815 Td /F1 9.8 Tf [(Lahad M. Storymaking in assessment method for coping with stress?. Dramatherapy theory Pract II. 1992; 150163.)] TJ ET BT 26.250 508.410 Td /F1 9.8 Tf [(2.)] TJ ET BT 38.132 508.410 Td /F1 9.8 Tf [(Sellnow TL, Seeger MW, Ulmer RR. Chaos theory, informational needs, and natural disasters. Journal of Applied )] TJ ET BT 26.250 496.506 Td /F1 9.8 Tf [(Communication Research. 2002. pp. 269292. doi:10.1080/00909880216599)] TJ ET BT 26.250 477.101 Td /F1 9.8 Tf [(3.)] TJ ET BT 38.132 477.101 Td /F1 9.8 Tf [(Firestone RM, Everly Jr GS. A pilot investigation in constructing crisis communications: what leads to best practice? Int J )] TJ ET BT 26.250 465.196 Td /F1 9.8 Tf [(Emerg Ment Health. Loyola University Maryland, USA.; The Johns Hopkins Bloomberg School of Public Health, and The Johns )] TJ ET BT 26.250 453.291 Td /F1 9.8 Tf [(Hopkins University School of Medicine, USA.; 2013;15: 159164)] TJ ET BT 26.250 433.887 Td /F1 9.8 Tf [(4.)] TJ ET BT 38.132 433.887 Td /F1 9.8 Tf [(Hyer RN, Covello VT. Effective media communication during public health emergencies: a WHO handbook. Geneva: World )] TJ ET BT 26.250 421.982 Td /F1 9.8 Tf [(Health Organization; 2005;)] TJ ET BT 26.250 402.577 Td /F1 9.8 Tf [(5.)] TJ ET BT 38.132 402.577 Td /F1 9.8 Tf [(Roux-Dufort C. Is Crisis Management \( Only \) a Management of Exceptions?? J Contingencies Cris Manag. 2007;15: )] TJ ET BT 26.250 390.672 Td /F1 9.8 Tf [(105114. doi:10.1111/j.1468-5973.2007.00507.x)] TJ ET BT 26.250 371.268 Td /F1 9.8 Tf [(6.)] TJ ET BT 38.132 371.268 Td /F1 9.8 Tf [(Kaplan AM, Haenlein M. Users of the world, unite! The challenges and opportunities of Social Media. Bus Horiz. Elsevier; )] TJ ET BT 26.250 359.363 Td /F1 9.8 Tf [(2010;53: 5968. doi:10.1016/j.bushor.2009.09.003)] TJ ET BT 26.250 339.958 Td /F1 9.8 Tf [(7.)] TJ ET BT 38.132 339.958 Td /F1 9.8 Tf [(Vasterman P, Yzermans CJ, Dirkzwager AJ. The role of the media and media hypes in the aftermath of disasters. Epidemiol )] TJ ET BT 26.250 328.053 Td /F1 9.8 Tf [(Rev. Faculty of Humanities, Department of Media Studies, University of Amsterdam, The Netherlands.; 2005;27: 107114. )] TJ ET BT 26.250 316.149 Td /F1 9.8 Tf [(doi:27/1/107 [pii])] TJ ET BT 26.250 296.744 Td /F1 9.8 Tf [(8.)] TJ ET BT 38.132 296.744 Td /F1 9.8 Tf [(Scheufele DA, Tewksbury D. Framing, agenda setting, and priming: The evolution of three media effects models. J Commun. )] TJ ET BT 26.250 284.839 Td /F1 9.8 Tf [(Wiley Online Library; 2007;57: 920.)] TJ ET BT 26.250 265.434 Td /F1 9.8 Tf [(9.)] TJ ET BT 38.132 265.434 Td /F1 9.8 Tf [(Wallack L, Dorfman L. Putting policy into health communication. Public Commun Campaign Oaks, CA Sage. 2001; 389406.)] TJ ET BT 26.250 246.030 Td /F1 9.8 Tf [(10.)] TJ ET BT 43.553 246.030 Td /F1 9.8 Tf [(Gurevitch M, Coleman S, Blumler JG. Political communicationOld and new media relationships. Ann Am Acad Pol Soc )] TJ ET BT 26.250 234.125 Td /F1 9.8 Tf [(Sci. Sage Publications; 2009;625: 164181.)] TJ ET BT 26.250 214.720 Td /F1 9.8 Tf [(11.)] TJ ET BT 43.553 214.720 Td /F1 9.8 Tf [(Kemp S. Digital, Social & Mobile Worldwide in 2015 [Internet]. 2015. Available: https://wearesocial.net/blog/2015/01/digital-)] TJ ET BT 26.250 202.815 Td /F1 9.8 Tf [(social-mobile-worldwide-2015/)] TJ ET BT 26.250 183.411 Td /F1 9.8 Tf [(12.)] TJ ET BT 43.553 183.411 Td /F1 9.8 Tf [(Mathioudakis M, Koudas N. Twittermonitor: trend detection over the twitter stream. Proceedings of the 2010 ACM SIGMOD )] TJ ET BT 26.250 171.506 Td /F1 9.8 Tf [(International Conference on Management of data. ACM; 2010. pp. 11551158.)] TJ ET BT 26.250 152.101 Td /F1 9.8 Tf [(13.)] TJ ET BT 43.553 152.101 Td /F1 9.8 Tf [(Terpstra T, de Vries A, Stronkman R, Paradies GL. Towards a realtime Twitter analysis during crises for operational crisis )] TJ ET BT 26.250 140.196 Td /F1 9.8 Tf [(management. ISCRAM12: Proceedings of the 9th International ISCRAM Conference. 2012.)] TJ ET BT 26.250 120.792 Td /F1 9.8 Tf [(14.)] TJ ET BT 43.553 120.792 Td /F1 9.8 Tf [(Maresh-Fuehrer MM, Smith R. Social media mapping innovations for crisis prevention, response, and evaluation. Comput )] TJ ET BT 26.250 108.887 Td /F1 9.8 Tf [(Human Behav. 2015; doi:10.1016/j.chb.2015.08.041)] TJ ET BT 26.250 89.482 Td /F1 9.8 Tf [(15.)] TJ ET BT 43.553 89.482 Td /F1 9.8 Tf [(Houston, JB et al. Social media and disasters: a functional framework for social media use in disaster planning, response, )] TJ ET BT 26.250 77.577 Td /F1 9.8 Tf [(and research. Disasters. 2014; 39: 1-22. doi: 10.1111/disa.12092)] TJ ET BT 26.250 58.173 Td /F1 9.8 Tf [(16.)] TJ ET BT 43.553 58.173 Td /F1 9.8 Tf [(Mazer JP, Thompson B, Cherry J, Russell M, Payne HJ, Gail Kirby E, et al. Communication in the face of a school crisis: )] TJ ET BT 26.250 46.268 Td /F1 9.8 Tf [(Examining the volume and content of social media mentions during active shooter incidents. Comput Human Behav. 2015;53: )] TJ ET Q q 15.000 31.982 577.500 745.018 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(managing communication with the public during emergency. Officials should also remember that the most effective )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(communication are those designed for a specific audience)] TJ ET 0.267 0.267 0.267 rg BT 277.156 757.079 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 286.794 755.571 Td /F1 9.8 Tf [(. Research shows that interpersonal communication that is )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(linguistically matched between the communicators is not only more successful, but also reflects our natural tendency to adjust )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(ourselves to the listener. Finally, decision makers and crisis managers need to acknowledge the potential of the massive )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(generated textual information published during times of emergency in the social media. This knowledge is not only beneficial for )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(situational awareness but also for user profiling, which in our case, is not intended for marketing purposes. Behavioral analyzed )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(information from text posted on social media can leverage targeted communication during crisis, by automatic target audience )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(characterization and adapted, psycholinguisticly matched risk message preparation. Thus, as we keep facing major disasters )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(and emergencies that have became more frequent during the last decade, governments can be more effective in transmission )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(and dissemination of warning messages or/and survival information, better manage different public reactions triggered by the )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(crisis, gain credibility from the public, and improve public cooperation during emergencies.)] TJ ET BT 26.250 611.826 Td /F4 12.0 Tf [(Competing Interests Statement)] TJ ET BT 26.250 591.872 Td /F1 9.8 Tf [(The authors have declared that no competing interests exist.)] TJ ET BT 26.250 555.269 Td /F4 12.0 Tf [(References)] TJ ET BT 26.250 527.815 Td /F1 9.8 Tf [(1.)] TJ ET BT 38.132 527.815 Td /F1 9.8 Tf [(Lahad M. Storymaking in assessment method for coping with stress?. Dramatherapy theory Pract II. 1992; 150163.)] TJ ET BT 26.250 508.410 Td /F1 9.8 Tf [(2.)] TJ ET BT 38.132 508.410 Td /F1 9.8 Tf [(Sellnow TL, Seeger MW, Ulmer RR. Chaos theory, informational needs, and natural disasters. Journal of Applied )] TJ ET BT 26.250 496.506 Td /F1 9.8 Tf [(Communication Research. 2002. pp. 269292. doi:10.1080/00909880216599)] TJ ET BT 26.250 477.101 Td /F1 9.8 Tf [(3.)] TJ ET BT 38.132 477.101 Td /F1 9.8 Tf [(Firestone RM, Everly Jr GS. A pilot investigation in constructing crisis communications: what leads to best practice? Int J )] TJ ET BT 26.250 465.196 Td /F1 9.8 Tf [(Emerg Ment Health. Loyola University Maryland, USA.; The Johns Hopkins Bloomberg School of Public Health, and The Johns )] TJ ET BT 26.250 453.291 Td /F1 9.8 Tf [(Hopkins University School of Medicine, USA.; 2013;15: 159164)] TJ ET BT 26.250 433.887 Td /F1 9.8 Tf [(4.)] TJ ET BT 38.132 433.887 Td /F1 9.8 Tf [(Hyer RN, Covello VT. Effective media communication during public health emergencies: a WHO handbook. Geneva: World )] TJ ET BT 26.250 421.982 Td /F1 9.8 Tf [(Health Organization; 2005;)] TJ ET BT 26.250 402.577 Td /F1 9.8 Tf [(5.)] TJ ET BT 38.132 402.577 Td /F1 9.8 Tf [(Roux-Dufort C. Is Crisis Management \( Only \) a Management of Exceptions?? J Contingencies Cris Manag. 2007;15: )] TJ ET BT 26.250 390.672 Td /F1 9.8 Tf [(105114. doi:10.1111/j.1468-5973.2007.00507.x)] TJ ET BT 26.250 371.268 Td /F1 9.8 Tf [(6.)] TJ ET BT 38.132 371.268 Td /F1 9.8 Tf [(Kaplan AM, Haenlein M. Users of the world, unite! The challenges and opportunities of Social Media. Bus Horiz. Elsevier; )] TJ ET BT 26.250 359.363 Td /F1 9.8 Tf [(2010;53: 5968. doi:10.1016/j.bushor.2009.09.003)] TJ ET BT 26.250 339.958 Td /F1 9.8 Tf [(7.)] TJ ET BT 38.132 339.958 Td /F1 9.8 Tf [(Vasterman P, Yzermans CJ, Dirkzwager AJ. The role of the media and media hypes in the aftermath of disasters. Epidemiol )] TJ ET BT 26.250 328.053 Td /F1 9.8 Tf [(Rev. Faculty of Humanities, Department of Media Studies, University of Amsterdam, The Netherlands.; 2005;27: 107114. )] TJ ET BT 26.250 316.149 Td /F1 9.8 Tf [(doi:27/1/107 [pii])] TJ ET BT 26.250 296.744 Td /F1 9.8 Tf [(8.)] TJ ET BT 38.132 296.744 Td /F1 9.8 Tf [(Scheufele DA, Tewksbury D. Framing, agenda setting, and priming: The evolution of three media effects models. J Commun. )] TJ ET BT 26.250 284.839 Td /F1 9.8 Tf [(Wiley Online Library; 2007;57: 920.)] TJ ET BT 26.250 265.434 Td /F1 9.8 Tf [(9.)] TJ ET BT 38.132 265.434 Td /F1 9.8 Tf [(Wallack L, Dorfman L. Putting policy into health communication. Public Commun Campaign Oaks, CA Sage. 2001; 389406.)] TJ ET BT 26.250 246.030 Td /F1 9.8 Tf [(10.)] TJ ET BT 43.553 246.030 Td /F1 9.8 Tf [(Gurevitch M, Coleman S, Blumler JG. Political communicationOld and new media relationships. Ann Am Acad Pol Soc )] TJ ET BT 26.250 234.125 Td /F1 9.8 Tf [(Sci. Sage Publications; 2009;625: 164181.)] TJ ET BT 26.250 214.720 Td /F1 9.8 Tf [(11.)] TJ ET BT 43.553 214.720 Td /F1 9.8 Tf [(Kemp S. Digital, Social & Mobile Worldwide in 2015 [Internet]. 2015. Available: https://wearesocial.net/blog/2015/01/digital-)] TJ ET BT 26.250 202.815 Td /F1 9.8 Tf [(social-mobile-worldwide-2015/)] TJ ET BT 26.250 183.411 Td /F1 9.8 Tf [(12.)] TJ ET BT 43.553 183.411 Td /F1 9.8 Tf [(Mathioudakis M, Koudas N. Twittermonitor: trend detection over the twitter stream. Proceedings of the 2010 ACM SIGMOD )] TJ ET BT 26.250 171.506 Td /F1 9.8 Tf [(International Conference on Management of data. ACM; 2010. pp. 11551158.)] TJ ET BT 26.250 152.101 Td /F1 9.8 Tf [(13.)] TJ ET BT 43.553 152.101 Td /F1 9.8 Tf [(Terpstra T, de Vries A, Stronkman R, Paradies GL. Towards a realtime Twitter analysis during crises for operational crisis )] TJ ET BT 26.250 140.196 Td /F1 9.8 Tf [(management. ISCRAM12: Proceedings of the 9th International ISCRAM Conference. 2012.)] TJ ET BT 26.250 120.792 Td /F1 9.8 Tf [(14.)] TJ ET BT 43.553 120.792 Td /F1 9.8 Tf [(Maresh-Fuehrer MM, Smith R. Social media mapping innovations for crisis prevention, response, and evaluation. Comput )] TJ ET BT 26.250 108.887 Td /F1 9.8 Tf [(Human Behav. 2015; doi:10.1016/j.chb.2015.08.041)] TJ ET BT 26.250 89.482 Td /F1 9.8 Tf [(15.)] TJ ET BT 43.553 89.482 Td /F1 9.8 Tf [(Houston, JB et al. Social media and disasters: a functional framework for social media use in disaster planning, response, )] TJ ET BT 26.250 77.577 Td /F1 9.8 Tf [(and research. Disasters. 2014; 39: 1-22. doi: 10.1111/disa.12092)] TJ ET BT 26.250 58.173 Td /F1 9.8 Tf [(16.)] TJ ET BT 43.553 58.173 Td /F1 9.8 Tf [(Mazer JP, Thompson B, Cherry J, Russell M, Payne HJ, Gail Kirby E, et al. Communication in the face of a school crisis: )] TJ ET BT 26.250 46.268 Td /F1 9.8 Tf [(Examining the volume and content of social media mentions during active shooter incidents. Comput Human Behav. 2015;53: )] TJ ET Q q 15.000 31.982 577.500 745.018 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(managing communication with the public during emergency. Officials should also remember that the most effective )] TJ ET BT 26.250 755.571 Td /F1 9.8 Tf [(communication are those designed for a specific audience)] TJ ET 0.267 0.267 0.267 rg BT 277.156 757.079 Td /F4 8.7 Tf [(33)] TJ ET 0.271 0.267 0.267 rg BT 286.794 755.571 Td /F1 9.8 Tf [(. Research shows that interpersonal communication that is )] TJ ET BT 26.250 743.667 Td /F1 9.8 Tf [(linguistically matched between the communicators is not only more successful, but also reflects our natural tendency to adjust )] TJ ET BT 26.250 731.762 Td /F1 9.8 Tf [(ourselves to the listener. Finally, decision makers and crisis managers need to acknowledge the potential of the massive )] TJ ET BT 26.250 719.857 Td /F1 9.8 Tf [(generated textual information published during times of emergency in the social media. This knowledge is not only beneficial for )] TJ ET BT 26.250 707.952 Td /F1 9.8 Tf [(situational awareness but also for user profiling, which in our case, is not intended for marketing purposes. Behavioral analyzed )] TJ ET BT 26.250 696.048 Td /F1 9.8 Tf [(information from text posted on social media can leverage targeted communication during crisis, by automatic target audience )] TJ ET BT 26.250 684.143 Td /F1 9.8 Tf [(characterization and adapted, psycholinguisticly matched risk message preparation. Thus, as we keep facing major disasters )] TJ ET BT 26.250 672.238 Td /F1 9.8 Tf [(and emergencies that have became more frequent during the last decade, governments can be more effective in transmission )] TJ ET BT 26.250 660.333 Td /F1 9.8 Tf [(and dissemination of warning messages or/and survival information, better manage different public reactions triggered by the )] TJ ET BT 26.250 648.429 Td /F1 9.8 Tf [(crisis, gain credibility from the public, and improve public cooperation during emergencies.)] TJ ET BT 26.250 611.826 Td /F4 12.0 Tf [(Competing Interests Statement)] TJ ET BT 26.250 591.872 Td /F1 9.8 Tf [(The authors have declared that no competing interests exist.)] TJ ET BT 26.250 555.269 Td /F4 12.0 Tf [(References)] TJ ET BT 26.250 527.815 Td /F1 9.8 Tf [(1.)] TJ ET BT 38.132 527.815 Td /F1 9.8 Tf [(Lahad M. Storymaking in assessment method for coping with stress?. Dramatherapy theory Pract II. 1992; 150163.)] TJ ET BT 26.250 508.410 Td /F1 9.8 Tf [(2.)] TJ ET BT 38.132 508.410 Td /F1 9.8 Tf [(Sellnow TL, Seeger MW, Ulmer RR. Chaos theory, informational needs, and natural disasters. Journal of Applied )] TJ ET BT 26.250 496.506 Td /F1 9.8 Tf [(Communication Research. 2002. pp. 269292. doi:10.1080/00909880216599)] TJ ET BT 26.250 477.101 Td /F1 9.8 Tf [(3.)] TJ ET BT 38.132 477.101 Td /F1 9.8 Tf [(Firestone RM, Everly Jr GS. A pilot investigation in constructing crisis communications: what leads to best practice? Int J )] TJ ET BT 26.250 465.196 Td /F1 9.8 Tf [(Emerg Ment Health. Loyola University Maryland, USA.; The Johns Hopkins Bloomberg School of Public Health, and The Johns )] TJ ET BT 26.250 453.291 Td /F1 9.8 Tf [(Hopkins University School of Medicine, USA.; 2013;15: 159164)] TJ ET BT 26.250 433.887 Td /F1 9.8 Tf [(4.)] TJ ET BT 38.132 433.887 Td /F1 9.8 Tf [(Hyer RN, Covello VT. Effective media communication during public health emergencies: a WHO handbook. Geneva: World )] TJ ET BT 26.250 421.982 Td /F1 9.8 Tf [(Health Organization; 2005;)] TJ ET BT 26.250 402.577 Td /F1 9.8 Tf [(5.)] TJ ET BT 38.132 402.577 Td /F1 9.8 Tf [(Roux-Dufort C. Is Crisis Management \( Only \) a Management of Exceptions?? J Contingencies Cris Manag. 2007;15: )] TJ ET BT 26.250 390.672 Td /F1 9.8 Tf [(105114. doi:10.1111/j.1468-5973.2007.00507.x)] TJ ET BT 26.250 371.268 Td /F1 9.8 Tf [(6.)] TJ ET BT 38.132 371.268 Td /F1 9.8 Tf [(Kaplan AM, Haenlein M. Users of the world, unite! The challenges and opportunities of Social Media. Bus Horiz. Elsevier; )] TJ ET BT 26.250 359.363 Td /F1 9.8 Tf [(2010;53: 5968. doi:10.1016/j.bushor.2009.09.003)] TJ ET BT 26.250 339.958 Td /F1 9.8 Tf [(7.)] TJ ET BT 38.132 339.958 Td /F1 9.8 Tf [(Vasterman P, Yzermans CJ, Dirkzwager AJ. The role of the media and media hypes in the aftermath of disasters. Epidemiol )] TJ ET BT 26.250 328.053 Td /F1 9.8 Tf [(Rev. Faculty of Humanities, Department of Media Studies, University of Amsterdam, The Netherlands.; 2005;27: 107114. )] TJ ET BT 26.250 316.149 Td /F1 9.8 Tf [(doi:27/1/107 [pii])] TJ ET BT 26.250 296.744 Td /F1 9.8 Tf [(8.)] TJ ET BT 38.132 296.744 Td /F1 9.8 Tf [(Scheufele DA, Tewksbury D. Framing, agenda setting, and priming: The evolution of three media effects models. J Commun. )] TJ ET BT 26.250 284.839 Td /F1 9.8 Tf [(Wiley Online Library; 2007;57: 920.)] TJ ET BT 26.250 265.434 Td /F1 9.8 Tf [(9.)] TJ ET BT 38.132 265.434 Td /F1 9.8 Tf [(Wallack L, Dorfman L. Putting policy into health communication. Public Commun Campaign Oaks, CA Sage. 2001; 389406.)] TJ ET BT 26.250 246.030 Td /F1 9.8 Tf [(10.)] TJ ET BT 43.553 246.030 Td /F1 9.8 Tf [(Gurevitch M, Coleman S, Blumler JG. Political communicationOld and new media relationships. Ann Am Acad Pol Soc )] TJ ET BT 26.250 234.125 Td /F1 9.8 Tf [(Sci. Sage Publications; 2009;625: 164181.)] TJ ET BT 26.250 214.720 Td /F1 9.8 Tf [(11.)] TJ ET BT 43.553 214.720 Td /F1 9.8 Tf [(Kemp S. Digital, Social & Mobile Worldwide in 2015 [Internet]. 2015. Available: https://wearesocial.net/blog/2015/01/digital-)] TJ ET BT 26.250 202.815 Td /F1 9.8 Tf [(social-mobile-worldwide-2015/)] TJ ET BT 26.250 183.411 Td /F1 9.8 Tf [(12.)] TJ ET BT 43.553 183.411 Td /F1 9.8 Tf [(Mathioudakis M, Koudas N. Twittermonitor: trend detection over the twitter stream. Proceedings of the 2010 ACM SIGMOD )] TJ ET BT 26.250 171.506 Td /F1 9.8 Tf [(International Conference on Management of data. ACM; 2010. pp. 11551158.)] TJ ET BT 26.250 152.101 Td /F1 9.8 Tf [(13.)] TJ ET BT 43.553 152.101 Td /F1 9.8 Tf [(Terpstra T, de Vries A, Stronkman R, Paradies GL. Towards a realtime Twitter analysis during crises for operational crisis )] TJ ET BT 26.250 140.196 Td /F1 9.8 Tf [(management. ISCRAM12: Proceedings of the 9th International ISCRAM Conference. 2012.)] TJ ET BT 26.250 120.792 Td /F1 9.8 Tf [(14.)] TJ ET BT 43.553 120.792 Td /F1 9.8 Tf [(Maresh-Fuehrer MM, Smith R. Social media mapping innovations for crisis prevention, response, and evaluation. Comput )] TJ ET BT 26.250 108.887 Td /F1 9.8 Tf [(Human Behav. 2015; doi:10.1016/j.chb.2015.08.041)] TJ ET BT 26.250 89.482 Td /F1 9.8 Tf [(15.)] TJ ET BT 43.553 89.482 Td /F1 9.8 Tf [(Houston, JB et al. Social media and disasters: a functional framework for social media use in disaster planning, response, )] TJ ET BT 26.250 77.577 Td /F1 9.8 Tf [(and research. Disasters. 2014; 39: 1-22. doi: 10.1111/disa.12092)] TJ ET BT 26.250 58.173 Td /F1 9.8 Tf [(16.)] TJ ET BT 43.553 58.173 Td /F1 9.8 Tf [(Mazer JP, Thompson B, Cherry J, Russell M, Payne HJ, Gail Kirby E, et al. Communication in the face of a school crisis: )] TJ ET BT 26.250 46.268 Td /F1 9.8 Tf [(Examining the volume and content of social media mentions during active shooter incidents. Comput Human Behav. 2015;53: )] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(10)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 1049 0 obj << /Type /Annot /Subtype /Link /A 1050 0 R /Border [0 0 0] /H /I /Rect [ 277.1565 756.2769 286.7938 765.0952 ] >> endobj 1050 0 obj << /Type /Action >> endobj 1051 0 obj << /Type /Annot /Subtype /Link /A 1052 0 R /Border [0 0 0] /H /I /Rect [ 277.1565 756.2769 286.7938 765.0952 ] >> endobj 1052 0 obj << /Type /Action >> endobj 1053 0 obj << /Type /Annot /Subtype /Link /A 1054 0 R /Border [0 0 0] /H /I /Rect [ 277.1565 756.2769 286.7938 765.0952 ] >> endobj 1054 0 obj << /Type /Action >> endobj 1055 0 obj << /Type /Page /Parent 3 0 R /Contents 1056 0 R >> endobj 1056 0 obj << /Length 22007 >> stream 0.271 0.267 0.267 rg q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(238248. doi:10.1016/j.chb.2015.06.040)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(17.)] TJ ET BT 43.553 748.071 Td /F1 9.8 Tf [(Imran M, Castillo C, Lucas J, Meier P, Vieweg S. AIDR: Artificial intelligence for disaster response. 23rd international )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(conference on World Wide Web. 2014.)] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(18.)] TJ ET BT 43.553 716.762 Td /F1 9.8 Tf [(Magen C. Crisis communication research in Israel: A meta-analysis. Public Relat Rev. 2014;40: 540542. )] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(doi:10.1016/j.pubrev.2014.03.001)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(19.)] TJ ET BT 43.553 685.452 Td /F1 9.8 Tf [(Hossain L, Murshed ST, Uddin S. Communication network dynamics during organizational crisis. J Informetr. 2013;7: )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(1635. doi:10.1016/j.joi.2012.07.006)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(20.)] TJ ET BT 43.553 654.143 Td /F1 9.8 Tf [(Ki EJ, Nekmat E. Situational crisis communication and interactivity: Usage and effectiveness of Facebook for crisis )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(management by Fortune 500 companies. Comput Human Behav. 2014;35: 140147. doi:10.1016/j.chb.2014.02.039)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(21.)] TJ ET BT 43.553 622.833 Td /F1 9.8 Tf [(Steelman TA, McCaffrey S. Best practices in risk and crisis communication: Implications for natural hazards management. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(Nat Hazards. 2013;65: 683705. doi:10.1007/s11069-012-0386-z)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(22.)] TJ ET BT 43.553 591.524 Td /F1 9.8 Tf [(Falkheimer J. Crisis communication and terrorism: the Norway attacks on 22 July 2011. Corp Commun An Int J. 2014;19: )] TJ ET BT 26.250 579.619 Td /F1 9.8 Tf [(5263. Available: 10.1108/CCIJ-08-2012-)] TJ ET BT 26.250 567.714 Td /F1 9.8 Tf [(0053nhttps://search.ebscohost.com/login.aspx?direct=true&db=bah&AN=94622396&site=ehost-live)] TJ ET BT 26.250 548.310 Td /F1 9.8 Tf [(23.)] TJ ET BT 43.553 548.310 Td /F1 9.8 Tf [(Mayhorn CB, McLaughlin AC. Warning the world of extreme events: A global perspective on risk communication for natural )] TJ ET BT 26.250 536.405 Td /F1 9.8 Tf [(and technological disaster. Saf Sci. 2014;61: 4350. doi:10.1016/j.ssci.2012.04.014)] TJ ET BT 26.250 517.000 Td /F1 9.8 Tf [(24.)] TJ ET BT 43.553 517.000 Td /F1 9.8 Tf [(Raue S, Johnson CW, Storer T. \(SMA\) 2-a social media audience sharing model for authorities to support effective crisis )] TJ ET BT 26.250 505.095 Td /F1 9.8 Tf [(communication. IET; 2012;)] TJ ET BT 26.250 485.691 Td /F1 9.8 Tf [(25.)] TJ ET BT 43.553 485.691 Td /F1 9.8 Tf [(Lowrey W, Evans W, Gower KK, Robinson JA, Ginter PM, McCormick LC, et al. Effective media communication of )] TJ ET BT 26.250 473.786 Td /F1 9.8 Tf [(disasters: pressing problems and recommendations. BMC Public Health. Department of Journalism, University of Alabama, )] TJ ET BT 26.250 461.881 Td /F1 9.8 Tf [(Tuscaloosa, USA. 2007;7: 97. doi:1471-2458-7-97 [pii])] TJ ET BT 26.250 442.476 Td /F1 9.8 Tf [(26.)] TJ ET BT 43.553 442.476 Td /F1 9.8 Tf [(Covello VT, Von Winterfeldt D, Slovic P. Risk communication. Springer; 1988.)] TJ ET BT 26.250 423.072 Td /F1 9.8 Tf [(27.)] TJ ET BT 43.553 423.072 Td /F1 9.8 Tf [(Reynolds B, Seeger MW. Crisis and Emergency Risk Communication \(CERC\) as an Integrative Model. J Health Commun. )] TJ ET BT 26.250 411.167 Td /F1 9.8 Tf [(2005;10: 4355. doi:10.1080/10810730701352990)] TJ ET BT 26.250 391.762 Td /F1 9.8 Tf [(28.)] TJ ET BT 43.553 391.762 Td /F1 9.8 Tf [(Daniel A Landau. How Social Media is Changing Crisis Communication: A Historical Analysis [Internet]. Crisis. 2011. )] TJ ET BT 26.250 379.857 Td /F1 9.8 Tf [(Available: https://www.danlandau.net/writing/sources/research/danlandau_thesis.pdf)] TJ ET BT 26.250 360.453 Td /F1 9.8 Tf [(29.)] TJ ET BT 43.553 360.453 Td /F1 9.8 Tf [(Graham MW, Avery EJ, Park S. The role of social media in local government crisis communications. Public Relat Rev. )] TJ ET BT 26.250 348.548 Td /F1 9.8 Tf [(2015;41: 386394. doi:10.1016/j.pubrev.2015.02.001)] TJ ET BT 26.250 329.143 Td /F1 9.8 Tf [(30.)] TJ ET BT 43.553 329.143 Td /F1 9.8 Tf [(Briones RL, Kuch B, Liu BF, Jin Y. Keeping up with the digital age: How the American Red Cross uses social media to build )] TJ ET BT 26.250 317.238 Td /F1 9.8 Tf [(relationships. Public Relat Rev. 2011;37: 3743. doi:10.1016/j.pubrev.2010.12.006)] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(31.)] TJ ET BT 43.553 297.834 Td /F1 9.8 Tf [(Olteanu A, Vieweg S, Castillo C. What to Expect When the Unexpected Happens: Social Media Communications Across )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(Crises. In Proc of 18th ACM Computer Supported Cooperative Work and Social Computing \(CSCW15\),. 2015.)] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(32.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Seeger MW. Best practices in crisis communication: An expert panel process. J Appl Commun Res. Taylor & Francis; )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(2006;34: 232244.)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(33.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Covello VT, McCallum DB, Pavlova MT. Effective risk communication: the role and responsibility of government and )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(nongovernment organizations. Springer Science & Business Media; 2012.)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(34.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Covello VT. Message mapping, risk and crisis communication. Invited paper presented at the World Health Organization )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(Conference on Bio-terrorism and Risk Communication, Geneva, Switzerland. 2002.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(35.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Degutis LC, Babcock-Dunning L. Risk Communication and Media Relations. Heal Care Emerg Manag Princ Pract. Jones & )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Bartlett Publishers; 2010; 233.)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(36.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Johansson A, Harenstam M. Knowledge communication: a key to successful crisis management. Biosecur Bioterror. United )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(States; 2013;11 Suppl 1: S2603. doi:10.1089/bsp.2013.0052 [doi])] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(37.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Waters RD, Tindall NTJ, Morton TS. Media catching and the journalistpublic relations practitioner relationship: How social )] TJ ET BT 26.250 98.072 Td /F1 9.8 Tf [(media are changing the practice of media relations. J Public Relations Res. Taylor & Francis; 2010;22: 241264.)] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(38.)] TJ ET BT 43.553 78.667 Td /F1 9.8 Tf [(Everly Jr GS, Strouse D, Everly III GS. Resilient leadership. NY: DiaMedica; 2010;)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(39.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Wigley S, Fontenot M. Crisis managers losing control of the message: A pilot study of the Virginia Tech shooting. Public )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Relat Rev. Elsevier; 2010;36: 187189.)] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(238248. doi:10.1016/j.chb.2015.06.040)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(17.)] TJ ET BT 43.553 748.071 Td /F1 9.8 Tf [(Imran M, Castillo C, Lucas J, Meier P, Vieweg S. AIDR: Artificial intelligence for disaster response. 23rd international )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(conference on World Wide Web. 2014.)] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(18.)] TJ ET BT 43.553 716.762 Td /F1 9.8 Tf [(Magen C. Crisis communication research in Israel: A meta-analysis. Public Relat Rev. 2014;40: 540542. )] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(doi:10.1016/j.pubrev.2014.03.001)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(19.)] TJ ET BT 43.553 685.452 Td /F1 9.8 Tf [(Hossain L, Murshed ST, Uddin S. Communication network dynamics during organizational crisis. J Informetr. 2013;7: )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(1635. doi:10.1016/j.joi.2012.07.006)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(20.)] TJ ET BT 43.553 654.143 Td /F1 9.8 Tf [(Ki EJ, Nekmat E. Situational crisis communication and interactivity: Usage and effectiveness of Facebook for crisis )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(management by Fortune 500 companies. Comput Human Behav. 2014;35: 140147. doi:10.1016/j.chb.2014.02.039)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(21.)] TJ ET BT 43.553 622.833 Td /F1 9.8 Tf [(Steelman TA, McCaffrey S. Best practices in risk and crisis communication: Implications for natural hazards management. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(Nat Hazards. 2013;65: 683705. doi:10.1007/s11069-012-0386-z)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(22.)] TJ ET BT 43.553 591.524 Td /F1 9.8 Tf [(Falkheimer J. Crisis communication and terrorism: the Norway attacks on 22 July 2011. Corp Commun An Int J. 2014;19: )] TJ ET BT 26.250 579.619 Td /F1 9.8 Tf [(5263. Available: 10.1108/CCIJ-08-2012-)] TJ ET BT 26.250 567.714 Td /F1 9.8 Tf [(0053nhttps://search.ebscohost.com/login.aspx?direct=true&db=bah&AN=94622396&site=ehost-live)] TJ ET BT 26.250 548.310 Td /F1 9.8 Tf [(23.)] TJ ET BT 43.553 548.310 Td /F1 9.8 Tf [(Mayhorn CB, McLaughlin AC. Warning the world of extreme events: A global perspective on risk communication for natural )] TJ ET BT 26.250 536.405 Td /F1 9.8 Tf [(and technological disaster. Saf Sci. 2014;61: 4350. doi:10.1016/j.ssci.2012.04.014)] TJ ET BT 26.250 517.000 Td /F1 9.8 Tf [(24.)] TJ ET BT 43.553 517.000 Td /F1 9.8 Tf [(Raue S, Johnson CW, Storer T. \(SMA\) 2-a social media audience sharing model for authorities to support effective crisis )] TJ ET BT 26.250 505.095 Td /F1 9.8 Tf [(communication. IET; 2012;)] TJ ET BT 26.250 485.691 Td /F1 9.8 Tf [(25.)] TJ ET BT 43.553 485.691 Td /F1 9.8 Tf [(Lowrey W, Evans W, Gower KK, Robinson JA, Ginter PM, McCormick LC, et al. Effective media communication of )] TJ ET BT 26.250 473.786 Td /F1 9.8 Tf [(disasters: pressing problems and recommendations. BMC Public Health. Department of Journalism, University of Alabama, )] TJ ET BT 26.250 461.881 Td /F1 9.8 Tf [(Tuscaloosa, USA. 2007;7: 97. doi:1471-2458-7-97 [pii])] TJ ET BT 26.250 442.476 Td /F1 9.8 Tf [(26.)] TJ ET BT 43.553 442.476 Td /F1 9.8 Tf [(Covello VT, Von Winterfeldt D, Slovic P. Risk communication. Springer; 1988.)] TJ ET BT 26.250 423.072 Td /F1 9.8 Tf [(27.)] TJ ET BT 43.553 423.072 Td /F1 9.8 Tf [(Reynolds B, Seeger MW. Crisis and Emergency Risk Communication \(CERC\) as an Integrative Model. J Health Commun. )] TJ ET BT 26.250 411.167 Td /F1 9.8 Tf [(2005;10: 4355. doi:10.1080/10810730701352990)] TJ ET BT 26.250 391.762 Td /F1 9.8 Tf [(28.)] TJ ET BT 43.553 391.762 Td /F1 9.8 Tf [(Daniel A Landau. How Social Media is Changing Crisis Communication: A Historical Analysis [Internet]. Crisis. 2011. )] TJ ET BT 26.250 379.857 Td /F1 9.8 Tf [(Available: https://www.danlandau.net/writing/sources/research/danlandau_thesis.pdf)] TJ ET BT 26.250 360.453 Td /F1 9.8 Tf [(29.)] TJ ET BT 43.553 360.453 Td /F1 9.8 Tf [(Graham MW, Avery EJ, Park S. The role of social media in local government crisis communications. Public Relat Rev. )] TJ ET BT 26.250 348.548 Td /F1 9.8 Tf [(2015;41: 386394. doi:10.1016/j.pubrev.2015.02.001)] TJ ET BT 26.250 329.143 Td /F1 9.8 Tf [(30.)] TJ ET BT 43.553 329.143 Td /F1 9.8 Tf [(Briones RL, Kuch B, Liu BF, Jin Y. Keeping up with the digital age: How the American Red Cross uses social media to build )] TJ ET BT 26.250 317.238 Td /F1 9.8 Tf [(relationships. Public Relat Rev. 2011;37: 3743. doi:10.1016/j.pubrev.2010.12.006)] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(31.)] TJ ET BT 43.553 297.834 Td /F1 9.8 Tf [(Olteanu A, Vieweg S, Castillo C. What to Expect When the Unexpected Happens: Social Media Communications Across )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(Crises. In Proc of 18th ACM Computer Supported Cooperative Work and Social Computing \(CSCW15\),. 2015.)] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(32.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Seeger MW. Best practices in crisis communication: An expert panel process. J Appl Commun Res. Taylor & Francis; )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(2006;34: 232244.)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(33.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Covello VT, McCallum DB, Pavlova MT. Effective risk communication: the role and responsibility of government and )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(nongovernment organizations. Springer Science & Business Media; 2012.)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(34.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Covello VT. Message mapping, risk and crisis communication. Invited paper presented at the World Health Organization )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(Conference on Bio-terrorism and Risk Communication, Geneva, Switzerland. 2002.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(35.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Degutis LC, Babcock-Dunning L. Risk Communication and Media Relations. Heal Care Emerg Manag Princ Pract. Jones & )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Bartlett Publishers; 2010; 233.)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(36.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Johansson A, Harenstam M. Knowledge communication: a key to successful crisis management. Biosecur Bioterror. United )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(States; 2013;11 Suppl 1: S2603. doi:10.1089/bsp.2013.0052 [doi])] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(37.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Waters RD, Tindall NTJ, Morton TS. Media catching and the journalistpublic relations practitioner relationship: How social )] TJ ET BT 26.250 98.072 Td /F1 9.8 Tf [(media are changing the practice of media relations. J Public Relations Res. Taylor & Francis; 2010;22: 241264.)] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(38.)] TJ ET BT 43.553 78.667 Td /F1 9.8 Tf [(Everly Jr GS, Strouse D, Everly III GS. Resilient leadership. NY: DiaMedica; 2010;)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(39.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Wigley S, Fontenot M. Crisis managers losing control of the message: A pilot study of the Virginia Tech shooting. Public )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Relat Rev. Elsevier; 2010;36: 187189.)] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(238248. doi:10.1016/j.chb.2015.06.040)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(17.)] TJ ET BT 43.553 748.071 Td /F1 9.8 Tf [(Imran M, Castillo C, Lucas J, Meier P, Vieweg S. AIDR: Artificial intelligence for disaster response. 23rd international )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(conference on World Wide Web. 2014.)] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(18.)] TJ ET BT 43.553 716.762 Td /F1 9.8 Tf [(Magen C. Crisis communication research in Israel: A meta-analysis. Public Relat Rev. 2014;40: 540542. )] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(doi:10.1016/j.pubrev.2014.03.001)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(19.)] TJ ET BT 43.553 685.452 Td /F1 9.8 Tf [(Hossain L, Murshed ST, Uddin S. Communication network dynamics during organizational crisis. J Informetr. 2013;7: )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(1635. doi:10.1016/j.joi.2012.07.006)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(20.)] TJ ET BT 43.553 654.143 Td /F1 9.8 Tf [(Ki EJ, Nekmat E. Situational crisis communication and interactivity: Usage and effectiveness of Facebook for crisis )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(management by Fortune 500 companies. Comput Human Behav. 2014;35: 140147. doi:10.1016/j.chb.2014.02.039)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(21.)] TJ ET BT 43.553 622.833 Td /F1 9.8 Tf [(Steelman TA, McCaffrey S. Best practices in risk and crisis communication: Implications for natural hazards management. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(Nat Hazards. 2013;65: 683705. doi:10.1007/s11069-012-0386-z)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(22.)] TJ ET BT 43.553 591.524 Td /F1 9.8 Tf [(Falkheimer J. Crisis communication and terrorism: the Norway attacks on 22 July 2011. Corp Commun An Int J. 2014;19: )] TJ ET BT 26.250 579.619 Td /F1 9.8 Tf [(5263. Available: 10.1108/CCIJ-08-2012-)] TJ ET BT 26.250 567.714 Td /F1 9.8 Tf [(0053nhttps://search.ebscohost.com/login.aspx?direct=true&db=bah&AN=94622396&site=ehost-live)] TJ ET BT 26.250 548.310 Td /F1 9.8 Tf [(23.)] TJ ET BT 43.553 548.310 Td /F1 9.8 Tf [(Mayhorn CB, McLaughlin AC. Warning the world of extreme events: A global perspective on risk communication for natural )] TJ ET BT 26.250 536.405 Td /F1 9.8 Tf [(and technological disaster. Saf Sci. 2014;61: 4350. doi:10.1016/j.ssci.2012.04.014)] TJ ET BT 26.250 517.000 Td /F1 9.8 Tf [(24.)] TJ ET BT 43.553 517.000 Td /F1 9.8 Tf [(Raue S, Johnson CW, Storer T. \(SMA\) 2-a social media audience sharing model for authorities to support effective crisis )] TJ ET BT 26.250 505.095 Td /F1 9.8 Tf [(communication. IET; 2012;)] TJ ET BT 26.250 485.691 Td /F1 9.8 Tf [(25.)] TJ ET BT 43.553 485.691 Td /F1 9.8 Tf [(Lowrey W, Evans W, Gower KK, Robinson JA, Ginter PM, McCormick LC, et al. Effective media communication of )] TJ ET BT 26.250 473.786 Td /F1 9.8 Tf [(disasters: pressing problems and recommendations. BMC Public Health. Department of Journalism, University of Alabama, )] TJ ET BT 26.250 461.881 Td /F1 9.8 Tf [(Tuscaloosa, USA. 2007;7: 97. doi:1471-2458-7-97 [pii])] TJ ET BT 26.250 442.476 Td /F1 9.8 Tf [(26.)] TJ ET BT 43.553 442.476 Td /F1 9.8 Tf [(Covello VT, Von Winterfeldt D, Slovic P. Risk communication. Springer; 1988.)] TJ ET BT 26.250 423.072 Td /F1 9.8 Tf [(27.)] TJ ET BT 43.553 423.072 Td /F1 9.8 Tf [(Reynolds B, Seeger MW. Crisis and Emergency Risk Communication \(CERC\) as an Integrative Model. J Health Commun. )] TJ ET BT 26.250 411.167 Td /F1 9.8 Tf [(2005;10: 4355. doi:10.1080/10810730701352990)] TJ ET BT 26.250 391.762 Td /F1 9.8 Tf [(28.)] TJ ET BT 43.553 391.762 Td /F1 9.8 Tf [(Daniel A Landau. How Social Media is Changing Crisis Communication: A Historical Analysis [Internet]. Crisis. 2011. )] TJ ET BT 26.250 379.857 Td /F1 9.8 Tf [(Available: https://www.danlandau.net/writing/sources/research/danlandau_thesis.pdf)] TJ ET BT 26.250 360.453 Td /F1 9.8 Tf [(29.)] TJ ET BT 43.553 360.453 Td /F1 9.8 Tf [(Graham MW, Avery EJ, Park S. The role of social media in local government crisis communications. Public Relat Rev. )] TJ ET BT 26.250 348.548 Td /F1 9.8 Tf [(2015;41: 386394. doi:10.1016/j.pubrev.2015.02.001)] TJ ET BT 26.250 329.143 Td /F1 9.8 Tf [(30.)] TJ ET BT 43.553 329.143 Td /F1 9.8 Tf [(Briones RL, Kuch B, Liu BF, Jin Y. Keeping up with the digital age: How the American Red Cross uses social media to build )] TJ ET BT 26.250 317.238 Td /F1 9.8 Tf [(relationships. Public Relat Rev. 2011;37: 3743. doi:10.1016/j.pubrev.2010.12.006)] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(31.)] TJ ET BT 43.553 297.834 Td /F1 9.8 Tf [(Olteanu A, Vieweg S, Castillo C. What to Expect When the Unexpected Happens: Social Media Communications Across )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(Crises. In Proc of 18th ACM Computer Supported Cooperative Work and Social Computing \(CSCW15\),. 2015.)] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(32.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Seeger MW. Best practices in crisis communication: An expert panel process. J Appl Commun Res. Taylor & Francis; )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(2006;34: 232244.)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(33.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Covello VT, McCallum DB, Pavlova MT. Effective risk communication: the role and responsibility of government and )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(nongovernment organizations. Springer Science & Business Media; 2012.)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(34.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Covello VT. Message mapping, risk and crisis communication. Invited paper presented at the World Health Organization )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(Conference on Bio-terrorism and Risk Communication, Geneva, Switzerland. 2002.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(35.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Degutis LC, Babcock-Dunning L. Risk Communication and Media Relations. Heal Care Emerg Manag Princ Pract. Jones & )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Bartlett Publishers; 2010; 233.)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(36.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Johansson A, Harenstam M. Knowledge communication: a key to successful crisis management. Biosecur Bioterror. United )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(States; 2013;11 Suppl 1: S2603. doi:10.1089/bsp.2013.0052 [doi])] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(37.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Waters RD, Tindall NTJ, Morton TS. Media catching and the journalistpublic relations practitioner relationship: How social )] TJ ET BT 26.250 98.072 Td /F1 9.8 Tf [(media are changing the practice of media relations. J Public Relations Res. Taylor & Francis; 2010;22: 241264.)] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(38.)] TJ ET BT 43.553 78.667 Td /F1 9.8 Tf [(Everly Jr GS, Strouse D, Everly III GS. Resilient leadership. NY: DiaMedica; 2010;)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(39.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Wigley S, Fontenot M. Crisis managers losing control of the message: A pilot study of the Virginia Tech shooting. Public )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Relat Rev. Elsevier; 2010;36: 187189.)] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(11)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 1057 0 obj << /Type /Page /Parent 3 0 R /Contents 1058 0 R >> endobj 1058 0 obj << /Length 21740 >> stream 0.271 0.267 0.267 rg q 15.000 46.286 577.500 730.714 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(40.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Coombs WT, Holladay SJ. The handbook of crisis communication. John Wiley & Sons; 2011.)] TJ ET BT 26.250 740.571 Td /F1 9.8 Tf [(41.)] TJ ET BT 43.553 740.571 Td /F1 9.8 Tf [(Coombs WT. Protecting Organization Reputations During a Crisis: The Development and Application of Situational Crisis )] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(Communication Theory. Corp Reput Rev. Nature Publishing Group; 2007;10: 163176. doi:10.1057/palgrave.crr.1550049)] TJ ET BT 26.250 709.262 Td /F1 9.8 Tf [(42.)] TJ ET BT 43.553 709.262 Td /F1 9.8 Tf [(Lorenz EN. The Essence of Chaos. American Journal of Physics. 1995. p. 862. doi:10.1119/1.17820)] TJ ET BT 26.250 689.857 Td /F1 9.8 Tf [(43.)] TJ ET BT 43.553 689.857 Td /F1 9.8 Tf [(Seeger MW. Chaos and crisis: propositions for a general theory of crisis communication. Public Relat Rev. 2002;28: )] TJ ET BT 26.250 677.952 Td /F1 9.8 Tf [(329337. doi:10.1016/S0363-8111\(02\)00168-6)] TJ ET BT 26.250 658.548 Td /F1 9.8 Tf [(44.)] TJ ET BT 43.553 658.548 Td /F1 9.8 Tf [(Liu BF, Austin L, Jin Y. How publics respond to crisis communication strategies: The interplay of information form and )] TJ ET BT 26.250 646.643 Td /F1 9.8 Tf [(source. Public Relat Rev. Elsevier; 2011;37: 345353.)] TJ ET BT 26.250 627.238 Td /F1 9.8 Tf [(45.)] TJ ET BT 43.553 627.238 Td /F1 9.8 Tf [(Utz S, Schultz F, Glocka S. Crisis communication online: How medium, crisis type and emotions affected public reactions in )] TJ ET BT 26.250 615.333 Td /F1 9.8 Tf [(the Fukushima Daiichi nuclear disaster. Public Relat Rev. Elsevier; 2013;39: 4046.)] TJ ET BT 26.250 595.929 Td /F1 9.8 Tf [(46.)] TJ ET BT 43.553 595.929 Td /F1 9.8 Tf [(Liu BF, Fraustino JD. Beyond image repair: Suggestions for crisis communication theory development. Public Relations )] TJ ET BT 26.250 584.024 Td /F1 9.8 Tf [(Review. Elsevier Ltd; 2014. pp. 543546. doi:10.1016/j.pubrev.2014.04.004)] TJ ET BT 26.250 564.619 Td /F1 9.8 Tf [(47.)] TJ ET BT 43.553 564.619 Td /F1 9.8 Tf [(Danescu-Niculescu-Mizil C, Gamon M, Dumais S. Mark my words!: linguistic style accommodation in social media. )] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(Proceedings of the 20th international conference on World wide web. 2011. pp. 745754.)] TJ ET BT 26.250 533.310 Td /F1 9.8 Tf [(48.)] TJ ET BT 43.553 533.310 Td /F1 9.8 Tf [(Niederhoffer KG, Pennebaker JW. Linguistic Style Matching in Social Interaction. Journal of Language and Social )] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(Psychology. 2002. pp. 337360. doi:10.1177/026192702237953)] TJ ET BT 26.250 502.000 Td /F1 9.8 Tf [(49.)] TJ ET BT 43.553 502.000 Td /F1 9.8 Tf [(Gonzales AL, Hancock JT, Pennebaker JW. Language Style Matching as a Predictor of Social Dynamics in Small Groups. )] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(Communication Research. 2010. pp. 319. doi:10.1177/0093650209351468)] TJ ET BT 26.250 470.691 Td /F1 9.8 Tf [(50.)] TJ ET BT 43.553 470.691 Td /F1 9.8 Tf [(Ireland ME, Slatcher RB, Eastwick PW, Scissors LE, Finkel EJ, Pennebaker JW. Language style matching predicts )] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(relationship initiation and stability. Psychol Sci a J Am Psychol Soc / APS. 2011;22: 3944. doi:10.1177/0956797610392928)] TJ ET BT 26.250 439.381 Td /F1 9.8 Tf [(51.)] TJ ET BT 43.553 439.381 Td /F1 9.8 Tf [(Lord SP, Sheng E, Imel ZE, Baer J, Atkins DC. More than reflections: empathy in motivational interviewing includes )] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(language style synchrony between therapist and client. Behav Ther. 2015;46: 296303. doi:10.1016/j.beth.2014.11.002)] TJ ET BT 26.250 408.072 Td /F1 9.8 Tf [(52.)] TJ ET BT 43.553 408.072 Td /F1 9.8 Tf [(Littlejohn SW, Foss KA. Encyclopedia of communication theory. Sage; 2009.)] TJ ET BT 26.250 388.667 Td /F1 9.8 Tf [(53.)] TJ ET BT 43.553 388.667 Td /F1 9.8 Tf [(Pennebaker JW, Francis ME, Booth RJ. Linguistic inquiry and word count: LIWC 2001. Mahw Lawrence Erlbaum Assoc. )] TJ ET BT 26.250 376.762 Td /F1 9.8 Tf [(2001;71: 2001.)] TJ ET BT 26.250 357.357 Td /F1 9.8 Tf [(54.)] TJ ET BT 43.553 357.357 Td /F1 9.8 Tf [(Rogan RG. Linguistic Style Matching in Crisis Negotiations: A Comparative Analysis of Suicidal and Surrender Outcomes. )] TJ ET BT 26.250 345.453 Td /F1 9.8 Tf [(Journal of Police Crisis Negotiations. 2011. pp. 2039. doi:10.1080/15332586.2011.523302)] TJ ET BT 26.250 326.048 Td /F1 9.8 Tf [(55.)] TJ ET BT 43.553 326.048 Td /F1 9.8 Tf [(Ireland ME, Henderson MD. Language style matching, engagement, and impasse in negotiations. Negot Confl Manag Res. )] TJ ET BT 26.250 314.143 Td /F1 9.8 Tf [(Wiley Online Library; 2014;7: 116.)] TJ ET BT 26.250 294.738 Td /F1 9.8 Tf [(56.)] TJ ET BT 43.553 294.738 Td /F1 9.8 Tf [(Giebels E, Taylor PJ. Interaction patterns in crisis negotiations: persuasive arguments and cultural differences. J Appl )] TJ ET BT 26.250 282.834 Td /F1 9.8 Tf [(Psychol. 2009;94: 519. doi:10.1037/a0012953)] TJ ET BT 26.250 263.429 Td /F1 9.8 Tf [(57.)] TJ ET BT 43.553 263.429 Td /F1 9.8 Tf [(Taylor PJ, Thomas S. Linguistic style matching and negotiation outcome. Negot Confl Manag Res. Wiley Online Library; )] TJ ET BT 26.250 251.524 Td /F1 9.8 Tf [(2008;1: 263281.)] TJ ET BT 26.250 232.119 Td /F1 9.8 Tf [(58.)] TJ ET BT 43.553 232.119 Td /F1 9.8 Tf [(Alharbi AM. Content analysis of crisis communicative strategies: Tunisian protest vs. anti-Mubarak protest. Int J Hum Sci. )] TJ ET BT 26.250 220.215 Td /F1 9.8 Tf [(2012;9: 571586.)] TJ ET BT 26.250 200.810 Td /F1 9.8 Tf [(59.)] TJ ET BT 43.553 200.810 Td /F1 9.8 Tf [(Jin Y, Liu BF, Austin LL. Examining the role of social media in effective crisis management: The effects of crisis origin, )] TJ ET BT 26.250 188.905 Td /F1 9.8 Tf [(information form, and source on publics crisis responses. Communic Res. SAGE Publications; 2011; 0093650211423918.)] TJ ET BT 26.250 169.500 Td /F1 9.8 Tf [(60.)] TJ ET BT 43.553 169.500 Td /F1 9.8 Tf [(Sellnow TL, Ulmer RR, Seeger MW, Littlefield RS. Multiple audiences for risk messages. Eff Risk Commun A Messag )] TJ ET BT 26.250 157.596 Td /F1 9.8 Tf [(Approach. Springer; 2009; 3349.)] TJ ET BT 26.250 138.191 Td /F1 9.8 Tf [(61.)] TJ ET BT 43.553 138.191 Td /F1 9.8 Tf [(Mason W, Vaughan JW, Wallach H. Computational social science and social computing. Mach Learn. Springer; 2014;95: )] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(257260.)] TJ ET BT 26.250 106.881 Td /F1 9.8 Tf [(62.)] TJ ET BT 43.553 106.881 Td /F1 9.8 Tf [(Erickson T. Social Computing. Encycl Human-Computer Interact 2nd Ed. The Interaction Design Foundation; 2013;)] TJ ET BT 26.250 87.477 Td /F1 9.8 Tf [(63.)] TJ ET BT 43.553 87.477 Td /F1 9.8 Tf [(Parameswaran M, Whinston AB. Social computing: An overview. Commun Assoc Inf Syst. 2007;19: 37.)] TJ ET BT 26.250 68.072 Td /F1 9.8 Tf [(64.)] TJ ET BT 43.553 68.072 Td /F1 9.8 Tf [(Zuiderveen Borgesius F. Behavioral targeting: A European legal perspective. IEEE Secur Priv. 2013;11: 8285. )] TJ ET BT 26.250 56.167 Td /F1 9.8 Tf [(doi:10.1109/MSP.2013.5)] TJ ET Q q 15.000 46.286 577.500 730.714 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(40.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Coombs WT, Holladay SJ. The handbook of crisis communication. John Wiley & Sons; 2011.)] TJ ET BT 26.250 740.571 Td /F1 9.8 Tf [(41.)] TJ ET BT 43.553 740.571 Td /F1 9.8 Tf [(Coombs WT. Protecting Organization Reputations During a Crisis: The Development and Application of Situational Crisis )] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(Communication Theory. Corp Reput Rev. Nature Publishing Group; 2007;10: 163176. doi:10.1057/palgrave.crr.1550049)] TJ ET BT 26.250 709.262 Td /F1 9.8 Tf [(42.)] TJ ET BT 43.553 709.262 Td /F1 9.8 Tf [(Lorenz EN. The Essence of Chaos. American Journal of Physics. 1995. p. 862. doi:10.1119/1.17820)] TJ ET BT 26.250 689.857 Td /F1 9.8 Tf [(43.)] TJ ET BT 43.553 689.857 Td /F1 9.8 Tf [(Seeger MW. Chaos and crisis: propositions for a general theory of crisis communication. Public Relat Rev. 2002;28: )] TJ ET BT 26.250 677.952 Td /F1 9.8 Tf [(329337. doi:10.1016/S0363-8111\(02\)00168-6)] TJ ET BT 26.250 658.548 Td /F1 9.8 Tf [(44.)] TJ ET BT 43.553 658.548 Td /F1 9.8 Tf [(Liu BF, Austin L, Jin Y. How publics respond to crisis communication strategies: The interplay of information form and )] TJ ET BT 26.250 646.643 Td /F1 9.8 Tf [(source. Public Relat Rev. Elsevier; 2011;37: 345353.)] TJ ET BT 26.250 627.238 Td /F1 9.8 Tf [(45.)] TJ ET BT 43.553 627.238 Td /F1 9.8 Tf [(Utz S, Schultz F, Glocka S. Crisis communication online: How medium, crisis type and emotions affected public reactions in )] TJ ET BT 26.250 615.333 Td /F1 9.8 Tf [(the Fukushima Daiichi nuclear disaster. Public Relat Rev. Elsevier; 2013;39: 4046.)] TJ ET BT 26.250 595.929 Td /F1 9.8 Tf [(46.)] TJ ET BT 43.553 595.929 Td /F1 9.8 Tf [(Liu BF, Fraustino JD. Beyond image repair: Suggestions for crisis communication theory development. Public Relations )] TJ ET BT 26.250 584.024 Td /F1 9.8 Tf [(Review. Elsevier Ltd; 2014. pp. 543546. doi:10.1016/j.pubrev.2014.04.004)] TJ ET BT 26.250 564.619 Td /F1 9.8 Tf [(47.)] TJ ET BT 43.553 564.619 Td /F1 9.8 Tf [(Danescu-Niculescu-Mizil C, Gamon M, Dumais S. Mark my words!: linguistic style accommodation in social media. )] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(Proceedings of the 20th international conference on World wide web. 2011. pp. 745754.)] TJ ET BT 26.250 533.310 Td /F1 9.8 Tf [(48.)] TJ ET BT 43.553 533.310 Td /F1 9.8 Tf [(Niederhoffer KG, Pennebaker JW. Linguistic Style Matching in Social Interaction. Journal of Language and Social )] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(Psychology. 2002. pp. 337360. doi:10.1177/026192702237953)] TJ ET BT 26.250 502.000 Td /F1 9.8 Tf [(49.)] TJ ET BT 43.553 502.000 Td /F1 9.8 Tf [(Gonzales AL, Hancock JT, Pennebaker JW. Language Style Matching as a Predictor of Social Dynamics in Small Groups. )] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(Communication Research. 2010. pp. 319. doi:10.1177/0093650209351468)] TJ ET BT 26.250 470.691 Td /F1 9.8 Tf [(50.)] TJ ET BT 43.553 470.691 Td /F1 9.8 Tf [(Ireland ME, Slatcher RB, Eastwick PW, Scissors LE, Finkel EJ, Pennebaker JW. Language style matching predicts )] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(relationship initiation and stability. Psychol Sci a J Am Psychol Soc / APS. 2011;22: 3944. doi:10.1177/0956797610392928)] TJ ET BT 26.250 439.381 Td /F1 9.8 Tf [(51.)] TJ ET BT 43.553 439.381 Td /F1 9.8 Tf [(Lord SP, Sheng E, Imel ZE, Baer J, Atkins DC. More than reflections: empathy in motivational interviewing includes )] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(language style synchrony between therapist and client. Behav Ther. 2015;46: 296303. doi:10.1016/j.beth.2014.11.002)] TJ ET BT 26.250 408.072 Td /F1 9.8 Tf [(52.)] TJ ET BT 43.553 408.072 Td /F1 9.8 Tf [(Littlejohn SW, Foss KA. Encyclopedia of communication theory. Sage; 2009.)] TJ ET BT 26.250 388.667 Td /F1 9.8 Tf [(53.)] TJ ET BT 43.553 388.667 Td /F1 9.8 Tf [(Pennebaker JW, Francis ME, Booth RJ. Linguistic inquiry and word count: LIWC 2001. Mahw Lawrence Erlbaum Assoc. )] TJ ET BT 26.250 376.762 Td /F1 9.8 Tf [(2001;71: 2001.)] TJ ET BT 26.250 357.357 Td /F1 9.8 Tf [(54.)] TJ ET BT 43.553 357.357 Td /F1 9.8 Tf [(Rogan RG. Linguistic Style Matching in Crisis Negotiations: A Comparative Analysis of Suicidal and Surrender Outcomes. )] TJ ET BT 26.250 345.453 Td /F1 9.8 Tf [(Journal of Police Crisis Negotiations. 2011. pp. 2039. doi:10.1080/15332586.2011.523302)] TJ ET BT 26.250 326.048 Td /F1 9.8 Tf [(55.)] TJ ET BT 43.553 326.048 Td /F1 9.8 Tf [(Ireland ME, Henderson MD. Language style matching, engagement, and impasse in negotiations. Negot Confl Manag Res. )] TJ ET BT 26.250 314.143 Td /F1 9.8 Tf [(Wiley Online Library; 2014;7: 116.)] TJ ET BT 26.250 294.738 Td /F1 9.8 Tf [(56.)] TJ ET BT 43.553 294.738 Td /F1 9.8 Tf [(Giebels E, Taylor PJ. Interaction patterns in crisis negotiations: persuasive arguments and cultural differences. J Appl )] TJ ET BT 26.250 282.834 Td /F1 9.8 Tf [(Psychol. 2009;94: 519. doi:10.1037/a0012953)] TJ ET BT 26.250 263.429 Td /F1 9.8 Tf [(57.)] TJ ET BT 43.553 263.429 Td /F1 9.8 Tf [(Taylor PJ, Thomas S. Linguistic style matching and negotiation outcome. Negot Confl Manag Res. Wiley Online Library; )] TJ ET BT 26.250 251.524 Td /F1 9.8 Tf [(2008;1: 263281.)] TJ ET BT 26.250 232.119 Td /F1 9.8 Tf [(58.)] TJ ET BT 43.553 232.119 Td /F1 9.8 Tf [(Alharbi AM. Content analysis of crisis communicative strategies: Tunisian protest vs. anti-Mubarak protest. Int J Hum Sci. )] TJ ET BT 26.250 220.215 Td /F1 9.8 Tf [(2012;9: 571586.)] TJ ET BT 26.250 200.810 Td /F1 9.8 Tf [(59.)] TJ ET BT 43.553 200.810 Td /F1 9.8 Tf [(Jin Y, Liu BF, Austin LL. Examining the role of social media in effective crisis management: The effects of crisis origin, )] TJ ET BT 26.250 188.905 Td /F1 9.8 Tf [(information form, and source on publics crisis responses. Communic Res. SAGE Publications; 2011; 0093650211423918.)] TJ ET BT 26.250 169.500 Td /F1 9.8 Tf [(60.)] TJ ET BT 43.553 169.500 Td /F1 9.8 Tf [(Sellnow TL, Ulmer RR, Seeger MW, Littlefield RS. Multiple audiences for risk messages. Eff Risk Commun A Messag )] TJ ET BT 26.250 157.596 Td /F1 9.8 Tf [(Approach. Springer; 2009; 3349.)] TJ ET BT 26.250 138.191 Td /F1 9.8 Tf [(61.)] TJ ET BT 43.553 138.191 Td /F1 9.8 Tf [(Mason W, Vaughan JW, Wallach H. Computational social science and social computing. Mach Learn. Springer; 2014;95: )] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(257260.)] TJ ET BT 26.250 106.881 Td /F1 9.8 Tf [(62.)] TJ ET BT 43.553 106.881 Td /F1 9.8 Tf [(Erickson T. Social Computing. Encycl Human-Computer Interact 2nd Ed. The Interaction Design Foundation; 2013;)] TJ ET BT 26.250 87.477 Td /F1 9.8 Tf [(63.)] TJ ET BT 43.553 87.477 Td /F1 9.8 Tf [(Parameswaran M, Whinston AB. Social computing: An overview. Commun Assoc Inf Syst. 2007;19: 37.)] TJ ET BT 26.250 68.072 Td /F1 9.8 Tf [(64.)] TJ ET BT 43.553 68.072 Td /F1 9.8 Tf [(Zuiderveen Borgesius F. Behavioral targeting: A European legal perspective. IEEE Secur Priv. 2013;11: 8285. )] TJ ET BT 26.250 56.167 Td /F1 9.8 Tf [(doi:10.1109/MSP.2013.5)] TJ ET Q q 15.000 46.286 577.500 730.714 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(40.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Coombs WT, Holladay SJ. The handbook of crisis communication. John Wiley & Sons; 2011.)] TJ ET BT 26.250 740.571 Td /F1 9.8 Tf [(41.)] TJ ET BT 43.553 740.571 Td /F1 9.8 Tf [(Coombs WT. Protecting Organization Reputations During a Crisis: The Development and Application of Situational Crisis )] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(Communication Theory. Corp Reput Rev. Nature Publishing Group; 2007;10: 163176. doi:10.1057/palgrave.crr.1550049)] TJ ET BT 26.250 709.262 Td /F1 9.8 Tf [(42.)] TJ ET BT 43.553 709.262 Td /F1 9.8 Tf [(Lorenz EN. The Essence of Chaos. American Journal of Physics. 1995. p. 862. doi:10.1119/1.17820)] TJ ET BT 26.250 689.857 Td /F1 9.8 Tf [(43.)] TJ ET BT 43.553 689.857 Td /F1 9.8 Tf [(Seeger MW. Chaos and crisis: propositions for a general theory of crisis communication. Public Relat Rev. 2002;28: )] TJ ET BT 26.250 677.952 Td /F1 9.8 Tf [(329337. doi:10.1016/S0363-8111\(02\)00168-6)] TJ ET BT 26.250 658.548 Td /F1 9.8 Tf [(44.)] TJ ET BT 43.553 658.548 Td /F1 9.8 Tf [(Liu BF, Austin L, Jin Y. How publics respond to crisis communication strategies: The interplay of information form and )] TJ ET BT 26.250 646.643 Td /F1 9.8 Tf [(source. Public Relat Rev. Elsevier; 2011;37: 345353.)] TJ ET BT 26.250 627.238 Td /F1 9.8 Tf [(45.)] TJ ET BT 43.553 627.238 Td /F1 9.8 Tf [(Utz S, Schultz F, Glocka S. Crisis communication online: How medium, crisis type and emotions affected public reactions in )] TJ ET BT 26.250 615.333 Td /F1 9.8 Tf [(the Fukushima Daiichi nuclear disaster. Public Relat Rev. Elsevier; 2013;39: 4046.)] TJ ET BT 26.250 595.929 Td /F1 9.8 Tf [(46.)] TJ ET BT 43.553 595.929 Td /F1 9.8 Tf [(Liu BF, Fraustino JD. Beyond image repair: Suggestions for crisis communication theory development. Public Relations )] TJ ET BT 26.250 584.024 Td /F1 9.8 Tf [(Review. Elsevier Ltd; 2014. pp. 543546. doi:10.1016/j.pubrev.2014.04.004)] TJ ET BT 26.250 564.619 Td /F1 9.8 Tf [(47.)] TJ ET BT 43.553 564.619 Td /F1 9.8 Tf [(Danescu-Niculescu-Mizil C, Gamon M, Dumais S. Mark my words!: linguistic style accommodation in social media. )] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(Proceedings of the 20th international conference on World wide web. 2011. pp. 745754.)] TJ ET BT 26.250 533.310 Td /F1 9.8 Tf [(48.)] TJ ET BT 43.553 533.310 Td /F1 9.8 Tf [(Niederhoffer KG, Pennebaker JW. Linguistic Style Matching in Social Interaction. Journal of Language and Social )] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(Psychology. 2002. pp. 337360. doi:10.1177/026192702237953)] TJ ET BT 26.250 502.000 Td /F1 9.8 Tf [(49.)] TJ ET BT 43.553 502.000 Td /F1 9.8 Tf [(Gonzales AL, Hancock JT, Pennebaker JW. Language Style Matching as a Predictor of Social Dynamics in Small Groups. )] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(Communication Research. 2010. pp. 319. doi:10.1177/0093650209351468)] TJ ET BT 26.250 470.691 Td /F1 9.8 Tf [(50.)] TJ ET BT 43.553 470.691 Td /F1 9.8 Tf [(Ireland ME, Slatcher RB, Eastwick PW, Scissors LE, Finkel EJ, Pennebaker JW. Language style matching predicts )] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(relationship initiation and stability. Psychol Sci a J Am Psychol Soc / APS. 2011;22: 3944. doi:10.1177/0956797610392928)] TJ ET BT 26.250 439.381 Td /F1 9.8 Tf [(51.)] TJ ET BT 43.553 439.381 Td /F1 9.8 Tf [(Lord SP, Sheng E, Imel ZE, Baer J, Atkins DC. More than reflections: empathy in motivational interviewing includes )] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(language style synchrony between therapist and client. Behav Ther. 2015;46: 296303. doi:10.1016/j.beth.2014.11.002)] TJ ET BT 26.250 408.072 Td /F1 9.8 Tf [(52.)] TJ ET BT 43.553 408.072 Td /F1 9.8 Tf [(Littlejohn SW, Foss KA. Encyclopedia of communication theory. Sage; 2009.)] TJ ET BT 26.250 388.667 Td /F1 9.8 Tf [(53.)] TJ ET BT 43.553 388.667 Td /F1 9.8 Tf [(Pennebaker JW, Francis ME, Booth RJ. Linguistic inquiry and word count: LIWC 2001. Mahw Lawrence Erlbaum Assoc. )] TJ ET BT 26.250 376.762 Td /F1 9.8 Tf [(2001;71: 2001.)] TJ ET BT 26.250 357.357 Td /F1 9.8 Tf [(54.)] TJ ET BT 43.553 357.357 Td /F1 9.8 Tf [(Rogan RG. Linguistic Style Matching in Crisis Negotiations: A Comparative Analysis of Suicidal and Surrender Outcomes. )] TJ ET BT 26.250 345.453 Td /F1 9.8 Tf [(Journal of Police Crisis Negotiations. 2011. pp. 2039. doi:10.1080/15332586.2011.523302)] TJ ET BT 26.250 326.048 Td /F1 9.8 Tf [(55.)] TJ ET BT 43.553 326.048 Td /F1 9.8 Tf [(Ireland ME, Henderson MD. Language style matching, engagement, and impasse in negotiations. Negot Confl Manag Res. )] TJ ET BT 26.250 314.143 Td /F1 9.8 Tf [(Wiley Online Library; 2014;7: 116.)] TJ ET BT 26.250 294.738 Td /F1 9.8 Tf [(56.)] TJ ET BT 43.553 294.738 Td /F1 9.8 Tf [(Giebels E, Taylor PJ. Interaction patterns in crisis negotiations: persuasive arguments and cultural differences. J Appl )] TJ ET BT 26.250 282.834 Td /F1 9.8 Tf [(Psychol. 2009;94: 519. doi:10.1037/a0012953)] TJ ET BT 26.250 263.429 Td /F1 9.8 Tf [(57.)] TJ ET BT 43.553 263.429 Td /F1 9.8 Tf [(Taylor PJ, Thomas S. Linguistic style matching and negotiation outcome. Negot Confl Manag Res. Wiley Online Library; )] TJ ET BT 26.250 251.524 Td /F1 9.8 Tf [(2008;1: 263281.)] TJ ET BT 26.250 232.119 Td /F1 9.8 Tf [(58.)] TJ ET BT 43.553 232.119 Td /F1 9.8 Tf [(Alharbi AM. Content analysis of crisis communicative strategies: Tunisian protest vs. anti-Mubarak protest. Int J Hum Sci. )] TJ ET BT 26.250 220.215 Td /F1 9.8 Tf [(2012;9: 571586.)] TJ ET BT 26.250 200.810 Td /F1 9.8 Tf [(59.)] TJ ET BT 43.553 200.810 Td /F1 9.8 Tf [(Jin Y, Liu BF, Austin LL. Examining the role of social media in effective crisis management: The effects of crisis origin, )] TJ ET BT 26.250 188.905 Td /F1 9.8 Tf [(information form, and source on publics crisis responses. Communic Res. SAGE Publications; 2011; 0093650211423918.)] TJ ET BT 26.250 169.500 Td /F1 9.8 Tf [(60.)] TJ ET BT 43.553 169.500 Td /F1 9.8 Tf [(Sellnow TL, Ulmer RR, Seeger MW, Littlefield RS. Multiple audiences for risk messages. Eff Risk Commun A Messag )] TJ ET BT 26.250 157.596 Td /F1 9.8 Tf [(Approach. Springer; 2009; 3349.)] TJ ET BT 26.250 138.191 Td /F1 9.8 Tf [(61.)] TJ ET BT 43.553 138.191 Td /F1 9.8 Tf [(Mason W, Vaughan JW, Wallach H. Computational social science and social computing. Mach Learn. Springer; 2014;95: )] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(257260.)] TJ ET BT 26.250 106.881 Td /F1 9.8 Tf [(62.)] TJ ET BT 43.553 106.881 Td /F1 9.8 Tf [(Erickson T. Social Computing. Encycl Human-Computer Interact 2nd Ed. The Interaction Design Foundation; 2013;)] TJ ET BT 26.250 87.477 Td /F1 9.8 Tf [(63.)] TJ ET BT 43.553 87.477 Td /F1 9.8 Tf [(Parameswaran M, Whinston AB. Social computing: An overview. Commun Assoc Inf Syst. 2007;19: 37.)] TJ ET BT 26.250 68.072 Td /F1 9.8 Tf [(64.)] TJ ET BT 43.553 68.072 Td /F1 9.8 Tf [(Zuiderveen Borgesius F. Behavioral targeting: A European legal perspective. IEEE Secur Priv. 2013;11: 8285. )] TJ ET BT 26.250 56.167 Td /F1 9.8 Tf [(doi:10.1109/MSP.2013.5)] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(12)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 1059 0 obj << /Type /Page /Parent 3 0 R /Contents 1060 0 R >> endobj 1060 0 obj << /Length 22649 >> stream 0.271 0.267 0.267 rg q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(65.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Hoffmann F, Inderst R, Ottaviani M. Hypertargeting, limited attention, and privacy: Implications for marketing and )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(campaigning. Ltd Attention, Priv Implic Mark Campaign \(May 1, 2013\). 2013;)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(66.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(Ahmed A, Low Y, Aly M, Josifovski V, Smola AJ. Scalable distributed inference of dynamic user interests for behavioral )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(targeting. Proc 17th ACM SIGKDD Int Conf Knowl Discov data Min - KDD 11. 2011; 114. doi:10.1145/2020408.2020433)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(67.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Yan J, Liu N, Wang G, Zhang W. How much can behavioral targeting help online advertising? Proceeding WWW 09 Proc )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(18th Int Conf World wide web. 2009; 261270. doi:10.1145/1526709.1526745)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(68.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Beales H. The Value of Behavioral Targeting. Director. 2010; 123. Available: https://www.socialized.fr/wp-)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(content/uploads/2010/08/beales-etude-sur-le-ciblage-comportemental-sur-internet-ppc4bible.pdf)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(69.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Xie Y, Gao Y, Gou J, Cheng Y, Honbo D, Zhang K, et al. Probabilistic macro behavioral targeting. International Conference )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(on Information and Knowledge Management, Proceedings. 2012. pp. 710. doi:10.1145/2390131.2390135)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(70.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(King I, Li J, Chan KT. A brief survey of computational approaches in Social Computing. 2009 International Joint Conference )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(on Neural Networks. 2009. pp. 16251632. doi:10.1109/IJCNN.2009.5178967)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(71.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(van Dam J-W, van de Velden M. Online profiling and clustering of Facebook users. Decis Support Syst. 2015;70: 6072. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(doi:10.1016/j.dss.2014.12.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(72.)] TJ ET BT 43.553 540.810 Td /F1 9.8 Tf [(Ricci F, Rokach L, Shapira B. Introduction to Recommender Systems Handbook. In: Ricci F, Rokach L, Shapira B, Kantor )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(PB, editors. Recommender Systems Handbook SE - 1. Springer US; 2011. pp. 135. doi:10.1007/978-0-387-85820-3_1)] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(73.)] TJ ET BT 43.553 509.500 Td /F1 9.8 Tf [(Massa P, Avesani P. Trust-aware collaborative filtering for recommender systems. Lect Notes Comput Sci. 2004;3290: )] TJ ET BT 26.250 497.595 Td /F1 9.8 Tf [(492508. doi:10.1007/978-3-540-30468-5_31)] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(74.)] TJ ET BT 43.553 478.191 Td /F1 9.8 Tf [(Kushwaha HK, Jeysree J. Personalized Recommender System. Int J Comput Appl. 2014;93: 16.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(75.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Negre E. Towards a knowledge \(experience\)-based recommender system for crisis management. P2P, Parallel, Grid, Cloud )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(and Internet Computing \(3PGCIC\), 2013 Eighth International Conference on. 2013. pp. 713718.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(76.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Kaklauskas A, Zavadskas EK, Kazokaitis P, Bivainis J, Galiniene B, dAmato M, et al. Crisis management model and )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(recommended system for construction and real estate. Advanced Methods for Computational Collective Intelligence. Springer; )] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(2013. pp. 333343.)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(77.)] TJ ET BT 43.553 384.262 Td /F1 9.8 Tf [(Li J, Kou G, Zhang Y. Review-Based Personalized Recommendation System in Emergency Management. International Asia )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(Conference on Industrial Engineering and Management Innovation \(IEMI2012\) Proceedings. 2013. pp. 16471655.)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(78.)] TJ ET BT 43.553 352.953 Td /F1 9.8 Tf [(Shapira B, Rokach L, Freilikhman S. Facebook single and cross domain data for recommendation systems. User Model )] TJ ET BT 26.250 341.048 Td /F1 9.8 Tf [(User-Adapted Interact. 2013;23: 211247. doi:10.1007/s11257-012-9128-x)] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(79.)] TJ ET BT 43.553 321.643 Td /F1 9.8 Tf [(Kamel Boulos MN, Resch B, Crowley DN, Breslin JG, Sohn G, Burtner R, et al. Crowdsourcing, citizen sensing and sensor )] TJ ET BT 26.250 309.738 Td /F1 9.8 Tf [(web technologies for public and environmental health surveillance and crisis management: trends, OGC standards and )] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(application examples. Int J Health Geogr. University of Plymouth, Drake Circus, Plymouth, Devon, UK. )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(mnkamelboulos@plymouth.ac.uk; 2011;10: 67. doi:10.1186/1476-072x-10-67 [doi])] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(80.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Sheth A. Citizen sensing, social signals, and enriching human experience. IEEE Internet Comput. 2009;13: 8792. )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(doi:10.1109/MIC.2009.77)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(81.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Burke JA, Estrin D, Hansen M, Parker A, Ramanathan N, Reddy S, et al. Participatory sensing. Cent Embed Netw Sens. )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(2006;)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(82.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Goldman J, Shilton K, Burke J, Estrin D, Hansen M, Ramanathan N, et al. Participatory Sensing: A citizen-powered )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(approach to illuminating the patterns that shape our world. Foresight Gov Proj White Pap. 2009; 115.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(83.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Purohit H, Meier P, Castillo C, Sheth AP. Crisis Mapping, Citizen Sensing and Social Media Analytics: Leveraging Citizen )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Roles for Crisis Response. 2013;)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(84.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Kucher K, Kerren A. Text visualization browser: A visual survey of text visualization techniques. Poster Abstr IEEE VIS. )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(2014;2014.)] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(85.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Maimon OZ, Rokach L. Data mining and knowledge discovery handbook. Springer; 2005.)] TJ ET BT 26.250 90.572 Td /F1 9.8 Tf [(86.)] TJ ET BT 43.553 90.572 Td /F1 9.8 Tf [(Feldman R, Sanger J. The text mining handbook: advanced approaches in analyzing unstructured data [Internet]. Imagine. )] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(Cambridge University Press; 2007. doi:10.1179/1465312512Z.00000000017)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(87.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Olteanu A, Castillo C, Diaz F, Vieweg S. CrisisLex: A Lexicon for Collecting and Filtering Microblogged Communications in )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Crises. Proc ICWSM. 2014;)] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(65.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Hoffmann F, Inderst R, Ottaviani M. Hypertargeting, limited attention, and privacy: Implications for marketing and )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(campaigning. Ltd Attention, Priv Implic Mark Campaign \(May 1, 2013\). 2013;)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(66.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(Ahmed A, Low Y, Aly M, Josifovski V, Smola AJ. Scalable distributed inference of dynamic user interests for behavioral )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(targeting. Proc 17th ACM SIGKDD Int Conf Knowl Discov data Min - KDD 11. 2011; 114. doi:10.1145/2020408.2020433)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(67.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Yan J, Liu N, Wang G, Zhang W. How much can behavioral targeting help online advertising? Proceeding WWW 09 Proc )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(18th Int Conf World wide web. 2009; 261270. doi:10.1145/1526709.1526745)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(68.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Beales H. The Value of Behavioral Targeting. Director. 2010; 123. Available: https://www.socialized.fr/wp-)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(content/uploads/2010/08/beales-etude-sur-le-ciblage-comportemental-sur-internet-ppc4bible.pdf)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(69.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Xie Y, Gao Y, Gou J, Cheng Y, Honbo D, Zhang K, et al. Probabilistic macro behavioral targeting. International Conference )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(on Information and Knowledge Management, Proceedings. 2012. pp. 710. doi:10.1145/2390131.2390135)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(70.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(King I, Li J, Chan KT. A brief survey of computational approaches in Social Computing. 2009 International Joint Conference )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(on Neural Networks. 2009. pp. 16251632. doi:10.1109/IJCNN.2009.5178967)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(71.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(van Dam J-W, van de Velden M. Online profiling and clustering of Facebook users. Decis Support Syst. 2015;70: 6072. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(doi:10.1016/j.dss.2014.12.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(72.)] TJ ET BT 43.553 540.810 Td /F1 9.8 Tf [(Ricci F, Rokach L, Shapira B. Introduction to Recommender Systems Handbook. In: Ricci F, Rokach L, Shapira B, Kantor )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(PB, editors. Recommender Systems Handbook SE - 1. Springer US; 2011. pp. 135. doi:10.1007/978-0-387-85820-3_1)] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(73.)] TJ ET BT 43.553 509.500 Td /F1 9.8 Tf [(Massa P, Avesani P. Trust-aware collaborative filtering for recommender systems. Lect Notes Comput Sci. 2004;3290: )] TJ ET BT 26.250 497.595 Td /F1 9.8 Tf [(492508. doi:10.1007/978-3-540-30468-5_31)] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(74.)] TJ ET BT 43.553 478.191 Td /F1 9.8 Tf [(Kushwaha HK, Jeysree J. Personalized Recommender System. Int J Comput Appl. 2014;93: 16.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(75.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Negre E. Towards a knowledge \(experience\)-based recommender system for crisis management. P2P, Parallel, Grid, Cloud )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(and Internet Computing \(3PGCIC\), 2013 Eighth International Conference on. 2013. pp. 713718.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(76.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Kaklauskas A, Zavadskas EK, Kazokaitis P, Bivainis J, Galiniene B, dAmato M, et al. Crisis management model and )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(recommended system for construction and real estate. Advanced Methods for Computational Collective Intelligence. Springer; )] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(2013. pp. 333343.)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(77.)] TJ ET BT 43.553 384.262 Td /F1 9.8 Tf [(Li J, Kou G, Zhang Y. Review-Based Personalized Recommendation System in Emergency Management. International Asia )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(Conference on Industrial Engineering and Management Innovation \(IEMI2012\) Proceedings. 2013. pp. 16471655.)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(78.)] TJ ET BT 43.553 352.953 Td /F1 9.8 Tf [(Shapira B, Rokach L, Freilikhman S. Facebook single and cross domain data for recommendation systems. User Model )] TJ ET BT 26.250 341.048 Td /F1 9.8 Tf [(User-Adapted Interact. 2013;23: 211247. doi:10.1007/s11257-012-9128-x)] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(79.)] TJ ET BT 43.553 321.643 Td /F1 9.8 Tf [(Kamel Boulos MN, Resch B, Crowley DN, Breslin JG, Sohn G, Burtner R, et al. Crowdsourcing, citizen sensing and sensor )] TJ ET BT 26.250 309.738 Td /F1 9.8 Tf [(web technologies for public and environmental health surveillance and crisis management: trends, OGC standards and )] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(application examples. Int J Health Geogr. University of Plymouth, Drake Circus, Plymouth, Devon, UK. )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(mnkamelboulos@plymouth.ac.uk; 2011;10: 67. doi:10.1186/1476-072x-10-67 [doi])] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(80.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Sheth A. Citizen sensing, social signals, and enriching human experience. IEEE Internet Comput. 2009;13: 8792. )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(doi:10.1109/MIC.2009.77)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(81.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Burke JA, Estrin D, Hansen M, Parker A, Ramanathan N, Reddy S, et al. Participatory sensing. Cent Embed Netw Sens. )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(2006;)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(82.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Goldman J, Shilton K, Burke J, Estrin D, Hansen M, Ramanathan N, et al. Participatory Sensing: A citizen-powered )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(approach to illuminating the patterns that shape our world. Foresight Gov Proj White Pap. 2009; 115.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(83.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Purohit H, Meier P, Castillo C, Sheth AP. Crisis Mapping, Citizen Sensing and Social Media Analytics: Leveraging Citizen )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Roles for Crisis Response. 2013;)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(84.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Kucher K, Kerren A. Text visualization browser: A visual survey of text visualization techniques. Poster Abstr IEEE VIS. )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(2014;2014.)] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(85.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Maimon OZ, Rokach L. Data mining and knowledge discovery handbook. Springer; 2005.)] TJ ET BT 26.250 90.572 Td /F1 9.8 Tf [(86.)] TJ ET BT 43.553 90.572 Td /F1 9.8 Tf [(Feldman R, Sanger J. The text mining handbook: advanced approaches in analyzing unstructured data [Internet]. Imagine. )] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(Cambridge University Press; 2007. doi:10.1179/1465312512Z.00000000017)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(87.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Olteanu A, Castillo C, Diaz F, Vieweg S. CrisisLex: A Lexicon for Collecting and Filtering Microblogged Communications in )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Crises. Proc ICWSM. 2014;)] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(65.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Hoffmann F, Inderst R, Ottaviani M. Hypertargeting, limited attention, and privacy: Implications for marketing and )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(campaigning. Ltd Attention, Priv Implic Mark Campaign \(May 1, 2013\). 2013;)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(66.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(Ahmed A, Low Y, Aly M, Josifovski V, Smola AJ. Scalable distributed inference of dynamic user interests for behavioral )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(targeting. Proc 17th ACM SIGKDD Int Conf Knowl Discov data Min - KDD 11. 2011; 114. doi:10.1145/2020408.2020433)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(67.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Yan J, Liu N, Wang G, Zhang W. How much can behavioral targeting help online advertising? Proceeding WWW 09 Proc )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(18th Int Conf World wide web. 2009; 261270. doi:10.1145/1526709.1526745)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(68.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Beales H. The Value of Behavioral Targeting. Director. 2010; 123. Available: https://www.socialized.fr/wp-)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(content/uploads/2010/08/beales-etude-sur-le-ciblage-comportemental-sur-internet-ppc4bible.pdf)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(69.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Xie Y, Gao Y, Gou J, Cheng Y, Honbo D, Zhang K, et al. Probabilistic macro behavioral targeting. International Conference )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(on Information and Knowledge Management, Proceedings. 2012. pp. 710. doi:10.1145/2390131.2390135)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(70.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(King I, Li J, Chan KT. A brief survey of computational approaches in Social Computing. 2009 International Joint Conference )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(on Neural Networks. 2009. pp. 16251632. doi:10.1109/IJCNN.2009.5178967)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(71.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(van Dam J-W, van de Velden M. Online profiling and clustering of Facebook users. Decis Support Syst. 2015;70: 6072. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(doi:10.1016/j.dss.2014.12.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(72.)] TJ ET BT 43.553 540.810 Td /F1 9.8 Tf [(Ricci F, Rokach L, Shapira B. Introduction to Recommender Systems Handbook. In: Ricci F, Rokach L, Shapira B, Kantor )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(PB, editors. Recommender Systems Handbook SE - 1. Springer US; 2011. pp. 135. doi:10.1007/978-0-387-85820-3_1)] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(73.)] TJ ET BT 43.553 509.500 Td /F1 9.8 Tf [(Massa P, Avesani P. Trust-aware collaborative filtering for recommender systems. Lect Notes Comput Sci. 2004;3290: )] TJ ET BT 26.250 497.595 Td /F1 9.8 Tf [(492508. doi:10.1007/978-3-540-30468-5_31)] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(74.)] TJ ET BT 43.553 478.191 Td /F1 9.8 Tf [(Kushwaha HK, Jeysree J. Personalized Recommender System. Int J Comput Appl. 2014;93: 16.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(75.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Negre E. Towards a knowledge \(experience\)-based recommender system for crisis management. P2P, Parallel, Grid, Cloud )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(and Internet Computing \(3PGCIC\), 2013 Eighth International Conference on. 2013. pp. 713718.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(76.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Kaklauskas A, Zavadskas EK, Kazokaitis P, Bivainis J, Galiniene B, dAmato M, et al. Crisis management model and )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(recommended system for construction and real estate. Advanced Methods for Computational Collective Intelligence. Springer; )] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(2013. pp. 333343.)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(77.)] TJ ET BT 43.553 384.262 Td /F1 9.8 Tf [(Li J, Kou G, Zhang Y. Review-Based Personalized Recommendation System in Emergency Management. International Asia )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(Conference on Industrial Engineering and Management Innovation \(IEMI2012\) Proceedings. 2013. pp. 16471655.)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(78.)] TJ ET BT 43.553 352.953 Td /F1 9.8 Tf [(Shapira B, Rokach L, Freilikhman S. Facebook single and cross domain data for recommendation systems. User Model )] TJ ET BT 26.250 341.048 Td /F1 9.8 Tf [(User-Adapted Interact. 2013;23: 211247. doi:10.1007/s11257-012-9128-x)] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(79.)] TJ ET BT 43.553 321.643 Td /F1 9.8 Tf [(Kamel Boulos MN, Resch B, Crowley DN, Breslin JG, Sohn G, Burtner R, et al. Crowdsourcing, citizen sensing and sensor )] TJ ET BT 26.250 309.738 Td /F1 9.8 Tf [(web technologies for public and environmental health surveillance and crisis management: trends, OGC standards and )] TJ ET BT 26.250 297.834 Td /F1 9.8 Tf [(application examples. Int J Health Geogr. University of Plymouth, Drake Circus, Plymouth, Devon, UK. )] TJ ET BT 26.250 285.929 Td /F1 9.8 Tf [(mnkamelboulos@plymouth.ac.uk; 2011;10: 67. doi:10.1186/1476-072x-10-67 [doi])] TJ ET BT 26.250 266.524 Td /F1 9.8 Tf [(80.)] TJ ET BT 43.553 266.524 Td /F1 9.8 Tf [(Sheth A. Citizen sensing, social signals, and enriching human experience. IEEE Internet Comput. 2009;13: 8792. )] TJ ET BT 26.250 254.619 Td /F1 9.8 Tf [(doi:10.1109/MIC.2009.77)] TJ ET BT 26.250 235.215 Td /F1 9.8 Tf [(81.)] TJ ET BT 43.553 235.215 Td /F1 9.8 Tf [(Burke JA, Estrin D, Hansen M, Parker A, Ramanathan N, Reddy S, et al. Participatory sensing. Cent Embed Netw Sens. )] TJ ET BT 26.250 223.310 Td /F1 9.8 Tf [(2006;)] TJ ET BT 26.250 203.905 Td /F1 9.8 Tf [(82.)] TJ ET BT 43.553 203.905 Td /F1 9.8 Tf [(Goldman J, Shilton K, Burke J, Estrin D, Hansen M, Ramanathan N, et al. Participatory Sensing: A citizen-powered )] TJ ET BT 26.250 192.000 Td /F1 9.8 Tf [(approach to illuminating the patterns that shape our world. Foresight Gov Proj White Pap. 2009; 115.)] TJ ET BT 26.250 172.596 Td /F1 9.8 Tf [(83.)] TJ ET BT 43.553 172.596 Td /F1 9.8 Tf [(Purohit H, Meier P, Castillo C, Sheth AP. Crisis Mapping, Citizen Sensing and Social Media Analytics: Leveraging Citizen )] TJ ET BT 26.250 160.691 Td /F1 9.8 Tf [(Roles for Crisis Response. 2013;)] TJ ET BT 26.250 141.286 Td /F1 9.8 Tf [(84.)] TJ ET BT 43.553 141.286 Td /F1 9.8 Tf [(Kucher K, Kerren A. Text visualization browser: A visual survey of text visualization techniques. Poster Abstr IEEE VIS. )] TJ ET BT 26.250 129.381 Td /F1 9.8 Tf [(2014;2014.)] TJ ET BT 26.250 109.977 Td /F1 9.8 Tf [(85.)] TJ ET BT 43.553 109.977 Td /F1 9.8 Tf [(Maimon OZ, Rokach L. Data mining and knowledge discovery handbook. Springer; 2005.)] TJ ET BT 26.250 90.572 Td /F1 9.8 Tf [(86.)] TJ ET BT 43.553 90.572 Td /F1 9.8 Tf [(Feldman R, Sanger J. The text mining handbook: advanced approaches in analyzing unstructured data [Internet]. Imagine. )] TJ ET BT 26.250 78.667 Td /F1 9.8 Tf [(Cambridge University Press; 2007. doi:10.1179/1465312512Z.00000000017)] TJ ET BT 26.250 59.262 Td /F1 9.8 Tf [(87.)] TJ ET BT 43.553 59.262 Td /F1 9.8 Tf [(Olteanu A, Castillo C, Diaz F, Vieweg S. CrisisLex: A Lexicon for Collecting and Filtering Microblogged Communications in )] TJ ET BT 26.250 47.358 Td /F1 9.8 Tf [(Crises. Proc ICWSM. 2014;)] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(13)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 1061 0 obj << /Type /Page /Parent 3 0 R /Contents 1062 0 R >> endobj 1062 0 obj << /Length 21617 >> stream 0.271 0.267 0.267 rg q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(88.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Temnikova I, Castillo C, Vieweg S. EMTerms 1.0: A Terminological Resource for Crisis Tweets. ISCRAM 2015: )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Proceedings of the 13th International ISCRAM Conference. Kristiansand; 2015.)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(89.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(McCreadie R, Macdonald C, Ounis I, Osborne M, Petrovic S. Scalable distributed event detection for Twitter. Proceedings - )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(2013 IEEE International Conference on Big Data, Big Data 2013. 2013. pp. 543549. doi:10.1109/BigData.2013.6691620)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(90.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Earle PS, Bowden DC, Guy M. Twitter earthquake detection: earthquake monitoring in a social world. Ann Geophys. )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(2012;54.)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(91.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Crooks A, Croitoru A, Stefanidis A, Radzikowski J. #Earthquake: Twitter as a Distributed Sensor System. Trans GIS. )] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(2013;17: 124147. doi:10.1111/j.1467-9671.2012.01359.x)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(92.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Bruns A, Burgess J. Researching news discussion on twitter. Journalism Studies. 2012. pp. 801814. )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(doi:10.1080/1461670X.2012.664428)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(93.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(Ellison NB, Boyd danah m. Sociality through social network sites. The Oxford handbook of internet studies. 2013. pp. )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(151172. doi:10.1093/oxfordhb/9780199589074.001.0001)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(94.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(Chowdhury GG. Natural language processing. Annu Rev Inf Sci Technol. Wiley Online Library; 2003;37: 5189.)] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(95.)] TJ ET BT 43.553 552.714 Td /F1 9.8 Tf [(Dittmar N, Forsthoffer I. Handbook of Discourse Analysis. Journal of Pragmatics. 2006. pp. 15211527. )] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(doi:10.1016/j.pragma.2006.03.004)] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(96.)] TJ ET BT 43.553 521.405 Td /F1 9.8 Tf [(Ashton MC, Lee K. A defence of the lexical approach to the study of personality structure. Eur J Pers. 2005;19: 524. )] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(doi:10.1002/per.541)] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(97.)] TJ ET BT 43.553 490.095 Td /F1 9.8 Tf [(Singh V, Dubey SK. Opinion mining and analysis: A literature review. Confluence The Next Generation Information )] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(Technology Summit \(Confluence\), 2014 5th International Conference-. 2014. pp. 232239.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(98.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Ghiassi M, Skinner J, Zimbra D. Twitter brand sentiment analysis: A hybrid system using n-gram analysis and dynamic )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(artificial neural network. Expert Syst Appl. Elsevier; 2013;40: 62666282.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(99.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Nagy A, Valley CCMSC, Stamberger J. Crowd Sentiment Detection during Disasters and Crises. Proceedings of the 9th )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(International ISCRAM Conference. 2012. pp. 19. Available: https://www.cmu.edu/silicon-)] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(valley/dmi/files/crowd_sentiment_detection.pdf)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(100.)] TJ ET BT 48.974 384.262 Td /F1 9.8 Tf [(Salath M, Khandelwal S. Assessing vaccination sentiments with online social media: Implications for infectious disease )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(dynamics and control. PLoS Comput Biol. 2011;7. doi:10.1371/journal.pcbi.1002199)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(101.)] TJ ET BT 48.974 352.953 Td /F1 9.8 Tf [(Kang M. Measuring social media credibility: A study on a Measure of Blog Credibility. Inst Public Relations. 2010;)] TJ ET BT 26.250 333.548 Td /F1 9.8 Tf [(102.)] TJ ET BT 48.974 333.548 Td /F1 9.8 Tf [(Castillo C, Mendoza M, Poblete B. Information credibility on twitter. Proc 20th Int Conf World wide web - WWW 11. 2011; )] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(675. doi:10.1145/1963405.1963500)] TJ ET BT 26.250 302.238 Td /F1 9.8 Tf [(103.)] TJ ET BT 48.974 302.238 Td /F1 9.8 Tf [(Caragea C, Squicciarini A, Stehle S, Neppalli K, Tapia A. Mapping moods: geo-mapped sentiment analysis during )] TJ ET BT 26.250 290.334 Td /F1 9.8 Tf [(hurricane Sandy. Proc of ISCRAM. 2014;)] TJ ET BT 26.250 270.929 Td /F1 9.8 Tf [(104.)] TJ ET BT 48.974 270.929 Td /F1 9.8 Tf [(Mandel B, Culotta A, Boulahanis J, Stark D, Lewis B, Rodrigue J. A demographic analysis of online sentiment during )] TJ ET BT 26.250 259.024 Td /F1 9.8 Tf [(Hurricane Irene. Proceedings of the 2012 Workshop on Language in Social Media. 2012. pp. 2736.)] TJ ET BT 26.250 239.619 Td /F1 9.8 Tf [(105.)] TJ ET BT 48.974 239.619 Td /F1 9.8 Tf [(Hobfoll SE. Conservation of resources theory: Its implication for stress, health, and resilience. Oxford Handb Stress Heal )] TJ ET BT 26.250 227.715 Td /F1 9.8 Tf [(coping. 2011; 127147.)] TJ ET BT 26.250 208.310 Td /F1 9.8 Tf [(106.)] TJ ET BT 48.974 208.310 Td /F1 9.8 Tf [(Pletikosa Cvijikj I, Michahelles F. Online engagement factors on Facebook brand pages. Soc Netw Anal Min. 2013;3: )] TJ ET BT 26.250 196.405 Td /F1 9.8 Tf [(843861. doi:10.1007/s13278-013-0098-8)] TJ ET BT 26.250 177.000 Td /F1 9.8 Tf [(107.)] TJ ET BT 48.974 177.000 Td /F1 9.8 Tf [(Poria S, Cambria E, Hussain A, Huang G-B. Towards an intelligent framework for multimodal affective data analysis. )] TJ ET BT 26.250 165.096 Td /F1 9.8 Tf [(Neural Networks. Elsevier; 2015;63: 104116.)] TJ ET BT 26.250 145.691 Td /F1 9.8 Tf [(108.)] TJ ET BT 48.974 145.691 Td /F1 9.8 Tf [(Makice K. Twitter API: Up and running: Learn how to build applications with the Twitter API. OReilly Media, Inc.; 2009.)] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(109.)] TJ ET BT 48.974 126.286 Td /F1 9.8 Tf [(Rieder B. Studying Facebook via data extraction: the Netvizz application. Proceedings of the 5th Annual ACM Web )] TJ ET BT 26.250 114.381 Td /F1 9.8 Tf [(Science Conference. ACM; 2013. pp. 346355.)] TJ ET BT 26.250 94.977 Td /F1 9.8 Tf [(110.)] TJ ET BT 48.974 94.977 Td /F1 9.8 Tf [(Tully S. A Human Right to Access the Internet? Problems and Prospects. Hum Rights Law Rev . 2014; )] TJ ET BT 26.250 83.072 Td /F1 9.8 Tf [(doi:10.1093/hrlr/ngu011)] TJ ET BT 26.250 63.667 Td /F1 9.8 Tf [(111.)] TJ ET BT 48.974 63.667 Td /F1 9.8 Tf [(Ma Y, Zhang H, Liu Y. Development of a joint official microblog platform to improve interactive communication with the )] TJ ET BT 26.250 51.762 Td /F1 9.8 Tf [(public under a centralized system. 11th International Conference on Information Systems for Crisis Response and )] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(88.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Temnikova I, Castillo C, Vieweg S. EMTerms 1.0: A Terminological Resource for Crisis Tweets. ISCRAM 2015: )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Proceedings of the 13th International ISCRAM Conference. Kristiansand; 2015.)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(89.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(McCreadie R, Macdonald C, Ounis I, Osborne M, Petrovic S. Scalable distributed event detection for Twitter. Proceedings - )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(2013 IEEE International Conference on Big Data, Big Data 2013. 2013. pp. 543549. doi:10.1109/BigData.2013.6691620)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(90.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Earle PS, Bowden DC, Guy M. Twitter earthquake detection: earthquake monitoring in a social world. Ann Geophys. )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(2012;54.)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(91.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Crooks A, Croitoru A, Stefanidis A, Radzikowski J. #Earthquake: Twitter as a Distributed Sensor System. Trans GIS. )] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(2013;17: 124147. doi:10.1111/j.1467-9671.2012.01359.x)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(92.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Bruns A, Burgess J. Researching news discussion on twitter. Journalism Studies. 2012. pp. 801814. )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(doi:10.1080/1461670X.2012.664428)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(93.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(Ellison NB, Boyd danah m. Sociality through social network sites. The Oxford handbook of internet studies. 2013. pp. )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(151172. doi:10.1093/oxfordhb/9780199589074.001.0001)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(94.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(Chowdhury GG. Natural language processing. Annu Rev Inf Sci Technol. Wiley Online Library; 2003;37: 5189.)] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(95.)] TJ ET BT 43.553 552.714 Td /F1 9.8 Tf [(Dittmar N, Forsthoffer I. Handbook of Discourse Analysis. Journal of Pragmatics. 2006. pp. 15211527. )] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(doi:10.1016/j.pragma.2006.03.004)] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(96.)] TJ ET BT 43.553 521.405 Td /F1 9.8 Tf [(Ashton MC, Lee K. A defence of the lexical approach to the study of personality structure. Eur J Pers. 2005;19: 524. )] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(doi:10.1002/per.541)] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(97.)] TJ ET BT 43.553 490.095 Td /F1 9.8 Tf [(Singh V, Dubey SK. Opinion mining and analysis: A literature review. Confluence The Next Generation Information )] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(Technology Summit \(Confluence\), 2014 5th International Conference-. 2014. pp. 232239.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(98.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Ghiassi M, Skinner J, Zimbra D. Twitter brand sentiment analysis: A hybrid system using n-gram analysis and dynamic )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(artificial neural network. Expert Syst Appl. Elsevier; 2013;40: 62666282.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(99.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Nagy A, Valley CCMSC, Stamberger J. Crowd Sentiment Detection during Disasters and Crises. Proceedings of the 9th )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(International ISCRAM Conference. 2012. pp. 19. Available: https://www.cmu.edu/silicon-)] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(valley/dmi/files/crowd_sentiment_detection.pdf)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(100.)] TJ ET BT 48.974 384.262 Td /F1 9.8 Tf [(Salath M, Khandelwal S. Assessing vaccination sentiments with online social media: Implications for infectious disease )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(dynamics and control. PLoS Comput Biol. 2011;7. doi:10.1371/journal.pcbi.1002199)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(101.)] TJ ET BT 48.974 352.953 Td /F1 9.8 Tf [(Kang M. Measuring social media credibility: A study on a Measure of Blog Credibility. Inst Public Relations. 2010;)] TJ ET BT 26.250 333.548 Td /F1 9.8 Tf [(102.)] TJ ET BT 48.974 333.548 Td /F1 9.8 Tf [(Castillo C, Mendoza M, Poblete B. Information credibility on twitter. Proc 20th Int Conf World wide web - WWW 11. 2011; )] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(675. doi:10.1145/1963405.1963500)] TJ ET BT 26.250 302.238 Td /F1 9.8 Tf [(103.)] TJ ET BT 48.974 302.238 Td /F1 9.8 Tf [(Caragea C, Squicciarini A, Stehle S, Neppalli K, Tapia A. Mapping moods: geo-mapped sentiment analysis during )] TJ ET BT 26.250 290.334 Td /F1 9.8 Tf [(hurricane Sandy. Proc of ISCRAM. 2014;)] TJ ET BT 26.250 270.929 Td /F1 9.8 Tf [(104.)] TJ ET BT 48.974 270.929 Td /F1 9.8 Tf [(Mandel B, Culotta A, Boulahanis J, Stark D, Lewis B, Rodrigue J. A demographic analysis of online sentiment during )] TJ ET BT 26.250 259.024 Td /F1 9.8 Tf [(Hurricane Irene. Proceedings of the 2012 Workshop on Language in Social Media. 2012. pp. 2736.)] TJ ET BT 26.250 239.619 Td /F1 9.8 Tf [(105.)] TJ ET BT 48.974 239.619 Td /F1 9.8 Tf [(Hobfoll SE. Conservation of resources theory: Its implication for stress, health, and resilience. Oxford Handb Stress Heal )] TJ ET BT 26.250 227.715 Td /F1 9.8 Tf [(coping. 2011; 127147.)] TJ ET BT 26.250 208.310 Td /F1 9.8 Tf [(106.)] TJ ET BT 48.974 208.310 Td /F1 9.8 Tf [(Pletikosa Cvijikj I, Michahelles F. Online engagement factors on Facebook brand pages. Soc Netw Anal Min. 2013;3: )] TJ ET BT 26.250 196.405 Td /F1 9.8 Tf [(843861. doi:10.1007/s13278-013-0098-8)] TJ ET BT 26.250 177.000 Td /F1 9.8 Tf [(107.)] TJ ET BT 48.974 177.000 Td /F1 9.8 Tf [(Poria S, Cambria E, Hussain A, Huang G-B. Towards an intelligent framework for multimodal affective data analysis. )] TJ ET BT 26.250 165.096 Td /F1 9.8 Tf [(Neural Networks. Elsevier; 2015;63: 104116.)] TJ ET BT 26.250 145.691 Td /F1 9.8 Tf [(108.)] TJ ET BT 48.974 145.691 Td /F1 9.8 Tf [(Makice K. Twitter API: Up and running: Learn how to build applications with the Twitter API. OReilly Media, Inc.; 2009.)] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(109.)] TJ ET BT 48.974 126.286 Td /F1 9.8 Tf [(Rieder B. Studying Facebook via data extraction: the Netvizz application. Proceedings of the 5th Annual ACM Web )] TJ ET BT 26.250 114.381 Td /F1 9.8 Tf [(Science Conference. ACM; 2013. pp. 346355.)] TJ ET BT 26.250 94.977 Td /F1 9.8 Tf [(110.)] TJ ET BT 48.974 94.977 Td /F1 9.8 Tf [(Tully S. A Human Right to Access the Internet? Problems and Prospects. Hum Rights Law Rev . 2014; )] TJ ET BT 26.250 83.072 Td /F1 9.8 Tf [(doi:10.1093/hrlr/ngu011)] TJ ET BT 26.250 63.667 Td /F1 9.8 Tf [(111.)] TJ ET BT 48.974 63.667 Td /F1 9.8 Tf [(Ma Y, Zhang H, Liu Y. Development of a joint official microblog platform to improve interactive communication with the )] TJ ET BT 26.250 51.762 Td /F1 9.8 Tf [(public under a centralized system. 11th International Conference on Information Systems for Crisis Response and )] TJ ET Q q 15.000 37.477 577.500 739.523 re W n 0.271 0.267 0.267 rg BT 26.250 759.976 Td /F1 9.8 Tf [(88.)] TJ ET BT 43.553 759.976 Td /F1 9.8 Tf [(Temnikova I, Castillo C, Vieweg S. EMTerms 1.0: A Terminological Resource for Crisis Tweets. ISCRAM 2015: )] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(Proceedings of the 13th International ISCRAM Conference. Kristiansand; 2015.)] TJ ET BT 26.250 728.667 Td /F1 9.8 Tf [(89.)] TJ ET BT 43.553 728.667 Td /F1 9.8 Tf [(McCreadie R, Macdonald C, Ounis I, Osborne M, Petrovic S. Scalable distributed event detection for Twitter. Proceedings - )] TJ ET BT 26.250 716.762 Td /F1 9.8 Tf [(2013 IEEE International Conference on Big Data, Big Data 2013. 2013. pp. 543549. doi:10.1109/BigData.2013.6691620)] TJ ET BT 26.250 697.357 Td /F1 9.8 Tf [(90.)] TJ ET BT 43.553 697.357 Td /F1 9.8 Tf [(Earle PS, Bowden DC, Guy M. Twitter earthquake detection: earthquake monitoring in a social world. Ann Geophys. )] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(2012;54.)] TJ ET BT 26.250 666.048 Td /F1 9.8 Tf [(91.)] TJ ET BT 43.553 666.048 Td /F1 9.8 Tf [(Crooks A, Croitoru A, Stefanidis A, Radzikowski J. #Earthquake: Twitter as a Distributed Sensor System. Trans GIS. )] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(2013;17: 124147. doi:10.1111/j.1467-9671.2012.01359.x)] TJ ET BT 26.250 634.738 Td /F1 9.8 Tf [(92.)] TJ ET BT 43.553 634.738 Td /F1 9.8 Tf [(Bruns A, Burgess J. Researching news discussion on twitter. Journalism Studies. 2012. pp. 801814. )] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(doi:10.1080/1461670X.2012.664428)] TJ ET BT 26.250 603.429 Td /F1 9.8 Tf [(93.)] TJ ET BT 43.553 603.429 Td /F1 9.8 Tf [(Ellison NB, Boyd danah m. Sociality through social network sites. The Oxford handbook of internet studies. 2013. pp. )] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(151172. doi:10.1093/oxfordhb/9780199589074.001.0001)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(94.)] TJ ET BT 43.553 572.119 Td /F1 9.8 Tf [(Chowdhury GG. Natural language processing. Annu Rev Inf Sci Technol. Wiley Online Library; 2003;37: 5189.)] TJ ET BT 26.250 552.714 Td /F1 9.8 Tf [(95.)] TJ ET BT 43.553 552.714 Td /F1 9.8 Tf [(Dittmar N, Forsthoffer I. Handbook of Discourse Analysis. Journal of Pragmatics. 2006. pp. 15211527. )] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(doi:10.1016/j.pragma.2006.03.004)] TJ ET BT 26.250 521.405 Td /F1 9.8 Tf [(96.)] TJ ET BT 43.553 521.405 Td /F1 9.8 Tf [(Ashton MC, Lee K. A defence of the lexical approach to the study of personality structure. Eur J Pers. 2005;19: 524. )] TJ ET BT 26.250 509.500 Td /F1 9.8 Tf [(doi:10.1002/per.541)] TJ ET BT 26.250 490.095 Td /F1 9.8 Tf [(97.)] TJ ET BT 43.553 490.095 Td /F1 9.8 Tf [(Singh V, Dubey SK. Opinion mining and analysis: A literature review. Confluence The Next Generation Information )] TJ ET BT 26.250 478.191 Td /F1 9.8 Tf [(Technology Summit \(Confluence\), 2014 5th International Conference-. 2014. pp. 232239.)] TJ ET BT 26.250 458.786 Td /F1 9.8 Tf [(98.)] TJ ET BT 43.553 458.786 Td /F1 9.8 Tf [(Ghiassi M, Skinner J, Zimbra D. Twitter brand sentiment analysis: A hybrid system using n-gram analysis and dynamic )] TJ ET BT 26.250 446.881 Td /F1 9.8 Tf [(artificial neural network. Expert Syst Appl. Elsevier; 2013;40: 62666282.)] TJ ET BT 26.250 427.476 Td /F1 9.8 Tf [(99.)] TJ ET BT 43.553 427.476 Td /F1 9.8 Tf [(Nagy A, Valley CCMSC, Stamberger J. Crowd Sentiment Detection during Disasters and Crises. Proceedings of the 9th )] TJ ET BT 26.250 415.572 Td /F1 9.8 Tf [(International ISCRAM Conference. 2012. pp. 19. Available: https://www.cmu.edu/silicon-)] TJ ET BT 26.250 403.667 Td /F1 9.8 Tf [(valley/dmi/files/crowd_sentiment_detection.pdf)] TJ ET BT 26.250 384.262 Td /F1 9.8 Tf [(100.)] TJ ET BT 48.974 384.262 Td /F1 9.8 Tf [(Salath M, Khandelwal S. Assessing vaccination sentiments with online social media: Implications for infectious disease )] TJ ET BT 26.250 372.357 Td /F1 9.8 Tf [(dynamics and control. PLoS Comput Biol. 2011;7. doi:10.1371/journal.pcbi.1002199)] TJ ET BT 26.250 352.953 Td /F1 9.8 Tf [(101.)] TJ ET BT 48.974 352.953 Td /F1 9.8 Tf [(Kang M. Measuring social media credibility: A study on a Measure of Blog Credibility. Inst Public Relations. 2010;)] TJ ET BT 26.250 333.548 Td /F1 9.8 Tf [(102.)] TJ ET BT 48.974 333.548 Td /F1 9.8 Tf [(Castillo C, Mendoza M, Poblete B. Information credibility on twitter. Proc 20th Int Conf World wide web - WWW 11. 2011; )] TJ ET BT 26.250 321.643 Td /F1 9.8 Tf [(675. doi:10.1145/1963405.1963500)] TJ ET BT 26.250 302.238 Td /F1 9.8 Tf [(103.)] TJ ET BT 48.974 302.238 Td /F1 9.8 Tf [(Caragea C, Squicciarini A, Stehle S, Neppalli K, Tapia A. Mapping moods: geo-mapped sentiment analysis during )] TJ ET BT 26.250 290.334 Td /F1 9.8 Tf [(hurricane Sandy. Proc of ISCRAM. 2014;)] TJ ET BT 26.250 270.929 Td /F1 9.8 Tf [(104.)] TJ ET BT 48.974 270.929 Td /F1 9.8 Tf [(Mandel B, Culotta A, Boulahanis J, Stark D, Lewis B, Rodrigue J. A demographic analysis of online sentiment during )] TJ ET BT 26.250 259.024 Td /F1 9.8 Tf [(Hurricane Irene. Proceedings of the 2012 Workshop on Language in Social Media. 2012. pp. 2736.)] TJ ET BT 26.250 239.619 Td /F1 9.8 Tf [(105.)] TJ ET BT 48.974 239.619 Td /F1 9.8 Tf [(Hobfoll SE. Conservation of resources theory: Its implication for stress, health, and resilience. Oxford Handb Stress Heal )] TJ ET BT 26.250 227.715 Td /F1 9.8 Tf [(coping. 2011; 127147.)] TJ ET BT 26.250 208.310 Td /F1 9.8 Tf [(106.)] TJ ET BT 48.974 208.310 Td /F1 9.8 Tf [(Pletikosa Cvijikj I, Michahelles F. Online engagement factors on Facebook brand pages. Soc Netw Anal Min. 2013;3: )] TJ ET BT 26.250 196.405 Td /F1 9.8 Tf [(843861. doi:10.1007/s13278-013-0098-8)] TJ ET BT 26.250 177.000 Td /F1 9.8 Tf [(107.)] TJ ET BT 48.974 177.000 Td /F1 9.8 Tf [(Poria S, Cambria E, Hussain A, Huang G-B. Towards an intelligent framework for multimodal affective data analysis. )] TJ ET BT 26.250 165.096 Td /F1 9.8 Tf [(Neural Networks. Elsevier; 2015;63: 104116.)] TJ ET BT 26.250 145.691 Td /F1 9.8 Tf [(108.)] TJ ET BT 48.974 145.691 Td /F1 9.8 Tf [(Makice K. Twitter API: Up and running: Learn how to build applications with the Twitter API. OReilly Media, Inc.; 2009.)] TJ ET BT 26.250 126.286 Td /F1 9.8 Tf [(109.)] TJ ET BT 48.974 126.286 Td /F1 9.8 Tf [(Rieder B. Studying Facebook via data extraction: the Netvizz application. Proceedings of the 5th Annual ACM Web )] TJ ET BT 26.250 114.381 Td /F1 9.8 Tf [(Science Conference. ACM; 2013. pp. 346355.)] TJ ET BT 26.250 94.977 Td /F1 9.8 Tf [(110.)] TJ ET BT 48.974 94.977 Td /F1 9.8 Tf [(Tully S. A Human Right to Access the Internet? Problems and Prospects. Hum Rights Law Rev . 2014; )] TJ ET BT 26.250 83.072 Td /F1 9.8 Tf [(doi:10.1093/hrlr/ngu011)] TJ ET BT 26.250 63.667 Td /F1 9.8 Tf [(111.)] TJ ET BT 48.974 63.667 Td /F1 9.8 Tf [(Ma Y, Zhang H, Liu Y. Development of a joint official microblog platform to improve interactive communication with the )] TJ ET BT 26.250 51.762 Td /F1 9.8 Tf [(public under a centralized system. 11th International Conference on Information Systems for Crisis Response and )] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(14)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj 1063 0 obj << /Type /Page /Parent 3 0 R /Contents 1064 0 R >> endobj 1064 0 obj << /Length 8360 >> stream 0.271 0.267 0.267 rg q 15.000 511.524 577.500 265.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Management, ISCRAM 2014. 2014. pp. 782786.)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(112.)] TJ ET BT 48.974 748.071 Td /F1 9.8 Tf [(Erlandsson F, Boldt M, Johnson H. Privacy threats related to user profiling in online social networks. Proceedings - 2012 )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(ASE/IEEE International Conference on Privacy, Security, Risk and Trust and 2012 ASE/IEEE International Conference on )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Social Computing, SocialCom/PASSAT 2012. 2012. pp. 838842. doi:10.1109/SocialCom-PASSAT.2012.16)] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(113.)] TJ ET BT 48.974 704.857 Td /F1 9.8 Tf [(OBien D, Torres A. Social Networking and Online Privacy: Facebook Users Perceptions. Irish J Manag. 2012; 6398)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(114.)] TJ ET BT 48.974 685.452 Td /F1 9.8 Tf [(Kramer ADI, Guillory JE, Hancock JT. Experimental evidence of massive-scale emotional contagion through social )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(networks. Proc Natl Acad Sci U S A. 2014;111: 878890. doi:10.1073/pnas.1320040111)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(115.)] TJ ET BT 48.974 654.143 Td /F1 9.8 Tf [(Dong L, Xiong L, Zeng L. An internet-based prototype platform for natural disaster risk communication. Geoinformatics )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(\(GEOINFORMATICS\), 2012 20th International Conference on. 2012. pp. 14. doi:10.1109/Geoinformatics.2012.6270314)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(116.)] TJ ET BT 48.974 622.833 Td /F1 9.8 Tf [(Chen Y, Pavlov D, Canny JF. Behavioral Targeting. ACM Transactions on Knowledge Discovery from Data. 2010. pp. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(131. doi:10.1145/1857947.1857949)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(117.)] TJ ET BT 48.974 591.524 Td /F1 9.8 Tf [(Gottschall J. The storytelling animal: How stories make us human. Houghton Mifflin Harcourt; 2012.)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(118.)] TJ ET BT 48.974 572.119 Td /F1 9.8 Tf [(Simon T, Goldberg A, Adini B. Socializing in emergenciesA review of the use of social media in emergency situations. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(Int J Inf Manage. 2015;35: 609619. doi:10.1016/j.ijinfomgt.2015.07.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(119.)] TJ ET BT 48.974 540.810 Td /F1 9.8 Tf [(Veil SR, Buehner T, Palenchar MJ. A Work?In?Process Literature Review: Incorporating Social Media in Risk and Crisis )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(Communication. J Contingencies Cris Manag. Wiley Online Library; 2011;19: 110122. doi:10.1111/j.1468-5973.2011.00639.x)] TJ ET Q q 15.000 511.524 577.500 265.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Management, ISCRAM 2014. 2014. pp. 782786.)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(112.)] TJ ET BT 48.974 748.071 Td /F1 9.8 Tf [(Erlandsson F, Boldt M, Johnson H. Privacy threats related to user profiling in online social networks. Proceedings - 2012 )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(ASE/IEEE International Conference on Privacy, Security, Risk and Trust and 2012 ASE/IEEE International Conference on )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Social Computing, SocialCom/PASSAT 2012. 2012. pp. 838842. doi:10.1109/SocialCom-PASSAT.2012.16)] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(113.)] TJ ET BT 48.974 704.857 Td /F1 9.8 Tf [(OBien D, Torres A. Social Networking and Online Privacy: Facebook Users Perceptions. Irish J Manag. 2012; 6398)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(114.)] TJ ET BT 48.974 685.452 Td /F1 9.8 Tf [(Kramer ADI, Guillory JE, Hancock JT. Experimental evidence of massive-scale emotional contagion through social )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(networks. Proc Natl Acad Sci U S A. 2014;111: 878890. doi:10.1073/pnas.1320040111)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(115.)] TJ ET BT 48.974 654.143 Td /F1 9.8 Tf [(Dong L, Xiong L, Zeng L. An internet-based prototype platform for natural disaster risk communication. Geoinformatics )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(\(GEOINFORMATICS\), 2012 20th International Conference on. 2012. pp. 14. doi:10.1109/Geoinformatics.2012.6270314)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(116.)] TJ ET BT 48.974 622.833 Td /F1 9.8 Tf [(Chen Y, Pavlov D, Canny JF. Behavioral Targeting. ACM Transactions on Knowledge Discovery from Data. 2010. pp. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(131. doi:10.1145/1857947.1857949)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(117.)] TJ ET BT 48.974 591.524 Td /F1 9.8 Tf [(Gottschall J. The storytelling animal: How stories make us human. Houghton Mifflin Harcourt; 2012.)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(118.)] TJ ET BT 48.974 572.119 Td /F1 9.8 Tf [(Simon T, Goldberg A, Adini B. Socializing in emergenciesA review of the use of social media in emergency situations. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(Int J Inf Manage. 2015;35: 609619. doi:10.1016/j.ijinfomgt.2015.07.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(119.)] TJ ET BT 48.974 540.810 Td /F1 9.8 Tf [(Veil SR, Buehner T, Palenchar MJ. A Work?In?Process Literature Review: Incorporating Social Media in Risk and Crisis )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(Communication. J Contingencies Cris Manag. Wiley Online Library; 2011;19: 110122. doi:10.1111/j.1468-5973.2011.00639.x)] TJ ET Q q 15.000 511.524 577.500 265.476 re W n 0.271 0.267 0.267 rg BT 26.250 767.476 Td /F1 9.8 Tf [(Management, ISCRAM 2014. 2014. pp. 782786.)] TJ ET BT 26.250 748.071 Td /F1 9.8 Tf [(112.)] TJ ET BT 48.974 748.071 Td /F1 9.8 Tf [(Erlandsson F, Boldt M, Johnson H. Privacy threats related to user profiling in online social networks. Proceedings - 2012 )] TJ ET BT 26.250 736.167 Td /F1 9.8 Tf [(ASE/IEEE International Conference on Privacy, Security, Risk and Trust and 2012 ASE/IEEE International Conference on )] TJ ET BT 26.250 724.262 Td /F1 9.8 Tf [(Social Computing, SocialCom/PASSAT 2012. 2012. pp. 838842. doi:10.1109/SocialCom-PASSAT.2012.16)] TJ ET BT 26.250 704.857 Td /F1 9.8 Tf [(113.)] TJ ET BT 48.974 704.857 Td /F1 9.8 Tf [(OBien D, Torres A. Social Networking and Online Privacy: Facebook Users Perceptions. Irish J Manag. 2012; 6398)] TJ ET BT 26.250 685.452 Td /F1 9.8 Tf [(114.)] TJ ET BT 48.974 685.452 Td /F1 9.8 Tf [(Kramer ADI, Guillory JE, Hancock JT. Experimental evidence of massive-scale emotional contagion through social )] TJ ET BT 26.250 673.548 Td /F1 9.8 Tf [(networks. Proc Natl Acad Sci U S A. 2014;111: 878890. doi:10.1073/pnas.1320040111)] TJ ET BT 26.250 654.143 Td /F1 9.8 Tf [(115.)] TJ ET BT 48.974 654.143 Td /F1 9.8 Tf [(Dong L, Xiong L, Zeng L. An internet-based prototype platform for natural disaster risk communication. Geoinformatics )] TJ ET BT 26.250 642.238 Td /F1 9.8 Tf [(\(GEOINFORMATICS\), 2012 20th International Conference on. 2012. pp. 14. doi:10.1109/Geoinformatics.2012.6270314)] TJ ET BT 26.250 622.833 Td /F1 9.8 Tf [(116.)] TJ ET BT 48.974 622.833 Td /F1 9.8 Tf [(Chen Y, Pavlov D, Canny JF. Behavioral Targeting. ACM Transactions on Knowledge Discovery from Data. 2010. pp. )] TJ ET BT 26.250 610.929 Td /F1 9.8 Tf [(131. doi:10.1145/1857947.1857949)] TJ ET BT 26.250 591.524 Td /F1 9.8 Tf [(117.)] TJ ET BT 48.974 591.524 Td /F1 9.8 Tf [(Gottschall J. The storytelling animal: How stories make us human. Houghton Mifflin Harcourt; 2012.)] TJ ET BT 26.250 572.119 Td /F1 9.8 Tf [(118.)] TJ ET BT 48.974 572.119 Td /F1 9.8 Tf [(Simon T, Goldberg A, Adini B. Socializing in emergenciesA review of the use of social media in emergency situations. )] TJ ET BT 26.250 560.214 Td /F1 9.8 Tf [(Int J Inf Manage. 2015;35: 609619. doi:10.1016/j.ijinfomgt.2015.07.001)] TJ ET BT 26.250 540.810 Td /F1 9.8 Tf [(119.)] TJ ET BT 48.974 540.810 Td /F1 9.8 Tf [(Veil SR, Buehner T, Palenchar MJ. A Work?In?Process Literature Review: Incorporating Social Media in Risk and Crisis )] TJ ET BT 26.250 528.905 Td /F1 9.8 Tf [(Communication. J Contingencies Cris Manag. Wiley Online Library; 2011;19: 110122. doi:10.1111/j.1468-5973.2011.00639.x)] TJ ET Q q 0.000 0.000 0.000 rg BT 291.710 19.825 Td /F1 11.0 Tf [(15)] TJ ET BT 25.000 19.825 Td /F1 11.0 Tf [(PLOS Currents Disasters)] TJ ET Q endstream endobj xref 0 1065 0000000000 65535 f 0000000008 00000 n 0000000073 00000 n 0000000119 00000 n 0000000497 00000 n 0000000534 00000 n 0000000768 00000 n 0000001053 00000 n 0000023236 00000 n 0000023343 00000 n 0000023451 00000 n 0000023562 00000 n 0000023675 00000 n 0000024063 00000 n 0000027948 00000 n 0000028075 00000 n 0000028255 00000 n 0000028382 00000 n 0000028562 00000 n 0000028689 00000 n 0000028800 00000 n 0000028926 00000 n 0000029028 00000 n 0000029155 00000 n 0000029275 00000 n 0000029403 00000 n 0000029516 00000 n 0000029644 00000 n 0000029680 00000 n 0000029808 00000 n 0000029844 00000 n 0000029972 00000 n 0000030008 00000 n 0000030136 00000 n 0000030172 00000 n 0000030299 00000 n 0000030479 00000 n 0000030606 00000 n 0000030786 00000 n 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