Crisis in a Networked World

Palen, Leysia; Vieweg, Sarah; Liu, Sophia B.; Hughes, Amanda

doi:10.1177/0894439309332302

Cited by 315 publications

(112 citation statements)

References 10 publications

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“…(2) is most consistent with the Hegselmann-Krause model of opinion dynamics [46], models of "continuous opinion dynamics" [47], and the many models of coordination and consensus of autonomous agents [37,[48][49][50][51]. The discrete nature of this update rule is consistent with the fact that information is often issued at some frequency or can be obtained in discrete units from governmental, social, or technical sources [42,52].…”

Section: Model Constructsupporting

confidence: 61%

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Collective decision dynamics in the presence of external drivers

2012

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We develop a sequence of models describing information transmission and decision dynamics for a network of individual agents subject to multiple sources of influence. Our general framework is set in the context of an impending natural disaster, where individuals, represented by nodes on the network, must decide whether or not to evacuate. Sources of influence include a one-to-many externally driven global broadcast as well as pairwise interactions, across links in the network, in which agents transmit either continuous opinions or binary actions. We consider both uniform and variable threshold rules on the individual opinion as baseline models for decision making. Our results indicate that (1) social networks lead to clustering and cohesive action among individuals, (2) binary information introduces high temporal variability and stagnation, and (3) information transmission over the network can either facilitate or hinder action adoption, depending on the influence of the global broadcast relative to the social network. Our framework highlights the essential role of local interactions between agents in predicting collective behavior of the population as a whole.

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Section: Model Constructsupporting

confidence: 61%

“…In such circumstances, it is know that each individual culls information from a wide variety of digital, sensorimotor, and social sources [42] and must decide if and when to evacuate. We assume that each individual has a simple decision rule: if the individual believes that the disaster is sufficiently likely, then he or she will evacuate.…”

Section: Introductionmentioning

confidence: 99%

Collective decision dynamics in the presence of external drivers

2012

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“…Because SNS enable users to interact, collaborate, and upload user-generated content in real time from devices with internet access, such as smartphones, the platforms can be of tremendous use during highly dynamic crisis situations (Mendoza et al, 2010). In addition, the real-time two-way communication and many-to-many information-broadcasting tools provided via SNS allow the public to actively participate during crisis events by browsing others' published information, posting, and leaving public comments (Palen et al, 2009). Thus, people who are not at the crisis scene can also make sense of those events by sharing, commenting, and accessing information posted in SNS (Blum et al, 2014).…”

Section: Twitter and Collective Sense-making In The Aftermath Of Crismentioning

confidence: 99%

Terror Management and Twitter: The Case of the 2016 Berlin Terrorist Attack

Fischer

Schwemmer

Fischbach

2018

Preprint

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There is evidence that people increasingly use social networking sites like Twitter in the aftermath of terrorist attacks to make sense of the events at the collective level. This work-in-progress paper focuses on the content of Twitter messages related to the 2016 terrorist attack on the Berlin Christmas market. We chose topic modeling to investigate the Twitter data and the terror management theory perspective to understand why people used Twitter in the aftermath of the attack. In particular, by connecting people and providing a real-time communication channel, Twitter helps its users collectively negotiate their worldviews and re-establish self-esteem. We provide first results and discuss next steps.

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“…researchers see SM as a direct way to provide information between the response organization and community members (Flynn and Bates, 2011;Appleby, 2013). The use of SM gives disaster-related organizations a unique way to connect individuals who may not be geographically impacted by the incident (Palen et al, 2009). By providing diverse avenues for communication, SM extends the reach of a disaster past its own community and creates more sources for information dissemination and collection.…”

Section: Social Media Usementioning

confidence: 99%

Information Communication Technology Use for Public Safety in the United States

Kapucu

Haupt

2016

Front. Commun.

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Information communication technology (ICT) is a crucial tool to support effective communication and decision-making under complex and uncertain environments of disasters by enhancing cognitive capacity of emergency managers. With the continuous influence and evolution of communication technologies, information sharing and decision-making has drastically changed and affects each phase of emergency management. Researchers continue to investigate the relationship of human involvement for spreading public safety information through ICT. With each disaster holding diverse characteristics influencing prediction, detection, and specific activities required for prevention, mitigation, response and recovery, the need for interoperable and dependable communication infrastructure, a common operating picture, and supportive regulations, policies, and practice greatly increases. Although a national public safety communication system was proposed, there are implementation challenges between local, state, and federal agencies. This paper briefly examines the evolution of the use of ICT for public safety along with current trends, benefits and challenges, and future needs.

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Crisis in a Networked World

Cited by 315 publications

References 10 publications

Collective decision dynamics in the presence of external drivers

Collective decision dynamics in the presence of external drivers

Terror Management and Twitter: The Case of the 2016 Berlin Terrorist Attack

Information Communication Technology Use for Public Safety in the United States

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