A linguistically-driven methodology for detecting impending and unfolding emergencies from social media messages

Natural disasters have demonstrated the crucial role of social media before, during and after emergencies (Haddow & Haddow 2013). Within our EU project Sland \ub4 ail, we aim to ethically improve \ub4 the use of social media in enhancing the response of disaster-related agen-cies. To this end, we have collected corpora of social and formal media to study newsroom communication of emergency management organisations in English and Italian. Currently, emergency management agencies in English-speaking countries use social media in different measure and different degrees, whereas Italian National Protezione Civile only uses Twitter at the moment. Our method is developed with a view to identifying communicative strategies and detecting sentiment in order to distinguish warnings from actual disasters and major from minor disasters. Our linguistic analysis uses humans to classify alert/warning messages or emer-gency response and mitigation ones based on the terminology used and the sentiment expressed. Results of linguistic analysis are then used to train an application by tagging messages and detecting disaster- and/or emergency-related terminology and emotive language to simulate human rating and forward information to an emergency management system

The Use of Social Media in Emergency Management by Public Agencies and Non-Governmental Organizations: Lessons Learned From Areas Affected by Hurricanes Isaac, Sandy, and Harvey

Natural disasters are increasingly costly for the United States. The literature suggests emergency managers may improve disaster outcomes and enhance disaster resilience by supplementing their official public-communications methods with more bi-directional communication tactics using social media. This study aims to understand how social media is used within the “whole community” of emergency management in areas affected by recent hurricanes. The first research objective examines how social media is used by governmental and non-governmental organizations across the four phases of emergency management (preparedness, response, recovery, mitigation). The second objective is to identify challenges governmental and non-governmental groups have encountered and strategies they recommend addressing these problems. The third objective is to examine how social media was used by disaster responders specifically during the response phase of Hurricane Harvey in 2017. We conducted a survey of 269 organizations in areas affected by Hurricanes Isaac and Sandy in 2012 to address research objectives one and two, and for the third objective, surveyed 64 organizations who contributed to the rescue and response efforts during Hurricane Harvey. The first survey found respondents representing government-related organizations use social media more during the response and the preparedness phases, while non-governmental groups report more social media activity during the recovery phase. This finding suggests that organizations performing primary and secondary roles in emergency management play complementary roles in risk and crisis communication with the public. The results also suggest that the emergency management community primarily uses social media to “push” information to the public through established communication networks and could benefit from additional efforts to “pull” information from their networks. Survey respondents report greatest concern about challenges external to their organizations, with the accuracy of information found on social media to be most concerning. The third research objective finds generally high levels of social media use among Hurricane Harvey responders, but also evidence of technical challenges including an inability to convert web-based communications to dispatchable missions due to limited functionality of their 911 systems. The results of the study provide insights regarding uses, challenges, and strategies to improve social media for the whole community of emergency management

Socializing in emergencies—A review of the use of social media in emergency situations

AbstractSocial media tools are integrated in most parts of our daily lives, as citizens, netizens, researchers or emergency responders. Lessons learnt from disasters and emergencies that occurred globally in the last few years have shown that social media tools may serve as an integral and significant component of crisis response. Communication is one of the fundamental tools of emergency management. It becomes crucial when there are dozens of agencies and organizations responding to a disaster. Regardless of the type of emergency, whether a terrorist attack, a hurricane or an earthquake, communication lines may be overloaded and cellular networks overwhelmed as too many people attempt to use them to access information. Social scientists have presented that post-disaster active public participation was largely altruistic, including activities such as search and rescue, first aid treatment, victim evacuation, and on-line help. Social media provides opportunities for engaging citizens in the emergency management by both disseminating information to the public and accessing information from them. During emergency events, individuals are exposed to large quantities of information without being aware of their validity or risk of misinformation, but users are usually swift to correct them, thus making the social media “self-regulating”

Social Media Networking Strategies for the Yale New Haven Center for Emergency Preparedness and Disaster Response (YNH-CEPDR)/ Yale New Haven Health System Center for Healthcare Solutions (YNHHS-CHS)

This paper investigates the uses and gratification of social media for both personal and organizational usage among employees at the Yale New Haven Center for Emergency Preparedness and Disaster Response/Center for Healthcare Solutions in New Haven, Connecticut. The purpose of this thesis is to assess and evaluate the relationship between YNH-CEPDR/CHS\u27 usage of social media tools and the organization\u27s employees\u27 personal attitudes, beliefs and usage of Facebook, Twitter, LinkedIn, and YouTube. Employees of CEPDR/CHS were surveyed regarding the function of social media for emergency management communication and the promotion of products and services. Results suggest that while employees generally agree that social media is a valuable tool for both personal use and professional purposes, there is no current social media strategy being employed by the organization. Future research should investigate and measure the effects of specific social media strategies employed by emergency preparedness and disaster response organizations

Social Media Analytics in Disaster Response: A Comprehensive Review

Social media has emerged as a valuable resource for disaster management, revolutionizing the way emergency response and recovery efforts are conducted during natural disasters. This review paper aims to provide a comprehensive analysis of social media analytics for disaster management. The abstract begins by highlighting the increasing prevalence of natural disasters and the need for effective strategies to mitigate their impact. It then emphasizes the growing influence of social media in disaster situations, discussing its role in disaster detection, situational awareness, and emergency communication. The abstract explores the challenges and opportunities associated with leveraging social media data for disaster management purposes. It examines methodologies and techniques used in social media analytics, including data collection, preprocessing, and analysis, with a focus on data mining and machine learning approaches. The abstract also presents a thorough examination of case studies and best practices that demonstrate the successful application of social media analytics in disaster response and recovery. Ethical considerations and privacy concerns related to the use of social media data in disaster scenarios are addressed. The abstract concludes by identifying future research directions and potential advancements in social media analytics for disaster management. The review paper aims to provide practitioners and researchers with a comprehensive understanding of the current state of social media analytics in disaster management, while highlighting the need for continued research and innovation in this field.Comment: 11 page

Characterization of the use of social media in natural disasters: A systematic review

© 2014 IEEE. Social media sites are playing a significant role in rapid propagation of information when disasters occur. This effective communication platform is a great useful tool for emergency (disaster) management agencies during all phases of disaster management life cycle: prevention (mitigation), preparedness, response, and recovery. This study has conducted a systematic review of social media use in disaster management literature to identify how social media sites have been used during these four critical phases of disaster management life cycle in order to recommend strategies for government officials. A systematic method has been used to search four major academic databases for this review. The search resulted in 40 articles and categorized the findings in six main themes: situational awareness, data collection methods, distributed sensor systems, news and rumors, sentiment analysis, and digital volunteerism

Supporting the Social Media Needs of Emergency Public Information Officers with Human-Centered Design and Development

Emergency response agencies, which operate as command-and-control organizations, push information to members of the public with too few mechanisms to support communication flowing back. Recently, information communication technologies (ICTs) such as social media have challenged this one-way model by allowing the public to participate in emergency response in new and unexpected ways. These developments place new pressure on emergency managers to release information over social media streams, monitor online activities during an emergency event, incorporate information provided by members of the public into response efforts, and engage in the public conversation around an event. Within US emergency response organizations, public information officers (PIOs) are in a unique position to use these emerging communication technologies. PIOs are responsible for communicating official response information to members of the public during an emergency event and ensuring that the information available in the public arena is accurate and complete. In this dissertation work, I examine how social media and the forms of public participation enabled by it are changing the role of the PIO. Based on this understanding, I explore ICT solutions for the PIO through human-centered methods that include the PIO in the design process. Finally, I design, implement, and evaluate a software application informed by this work that supports the social media needs of PIOs. With the aim of improving emergency response efforts, I demonstrate how empirically-based understandings of emergency management work can inform technology design, practice, and policy. This dissertation research provides the following contributions: (1) an examination of PIOs' roles and the sociotechnical environment in which they work; (2) a new model of PIO communication that takes into account new communication pathways that have been enabled by ICT; (3) a set of requirements for supporting PIO social media communication needs; (4) the design, implementation, and evaluation of a tool--the PIO Monitoring Application--that supports the social media monitoring, documenting, reporting, and organizing needs of PIOs during an emergency event; (5) a description of the likely future role of PIOs and how that role might be supported

Crisis communication and social media : the changing environment for natural disaster response

Over the past two years there have been several large-scale disasters (Haitian earthquake, Australian floods, UK riots, and the Japanese earthquake) that have seen wide use of social media for disaster response, often in innovative ways. This paper provides an analysis of the ways in which social media has been used in public-to-public communication and public-to-government organisation communication. It discusses four ways in which disaster response has been changed by social media: 1. Social media appears to be displacing the traditional media as a means of communication with the public during a crisis. In particular social media influences the way traditional media communication is received and distributed. 2. We propose that user-generated content may provide a new source of information for emergency management agencies during a disaster, but there is uncertainty with regards to the reliability and usefulness of this information. 3. There are also indications that social media provides a means for the public to self-organise in ways that were not previously possible. However, the type and usefulness of self-organisation sometimes works against efforts to mitigate the outcome of the disaster. 4. Social media seems to influence information flow during a disaster. In the past most information flowed in a single direction from government organisation to public, but social media negates this model. The public can diffuse information with ease, but also expect interaction with Government Organisations rather than a simple one-way information flow. These changes have implications for the way government organisations communicate with the public during a disaster. The predominant model for explaining this form of communication, the Crisis and Emergency Risk Communication (CERC), was developed in 2005 before social media achieved widespread popularity. We will present a modified form of the CERC model that integrates social media into the disaster communication cycle, and addresses the ways in which social media has changed communication between the public and government organisations during disasters

Online indexing and clustering of social media data for emergency management

Social media becomes a vital part in our daily communication practice, creating a huge amount of data and covering different real-world situations. Currently, there is a tendency in making use of social media during emergency management and response. Most of this effort is performed by a huge number of volunteers browsing through social media data and preparing maps that can be used by professional first responders. Automatic analysis approaches are needed to directly support the response teams in monitoring and also understanding the evolution of facts in social media during an emergency situation. In this paper, we investigate the problem of real-time sub-events identification in social media data (i.e., Twitter, Flickr and YouTube) during emergencies. A processing framework is presented serving to generate situational reports/summaries from social media data. This framework relies in particular on online indexing and online clustering of media data streams. Online indexing aims at tracking the relevant vocabulary to capture the evolution of sub-events over time. Online clustering, on the other hand, is used to detect and update the set of sub-events using the indices built during online indexing. To evaluate the framework, social media data related to Hurricane Sandy 2012 was collected and used in a series of experiments. In particular some online indexing methods have been tested against a proposed method to show their suitability. Moreover, the quality of online clustering has been studied using standard clustering indices. Overall the framework provides a great opportunity for supporting emergency responders as demonstrated in real-world emergency exercises

Surviving Sandy: An Analysis of Social Media Use in Response and Recovery Efforts

Hurricane Sandy devastated the northeastern United States in October of 2012. Many of those impacted by the storm took to social media to look for answers from disaster responders. Organizations like the American Red Cross and the Federal Emergency Management Agency (FEMA) have become increasingly reliant on social media as a crisis management tool. This paper analyzes the use of Facebook and Twitter by these organizations and their subsidiaries through a content analysis of their postings during the timeframe of the storm. Guided by Coombs’ Situational Crisis Communication Theory, the results from this study yield important findings and advice for disaster management practitioners in the future. Most notably, these discoveries demonstrate an overall lack in the organizations’ use of social media as a two-way communication stream. Advice for the future includes involving more employees and volunteers in the management of the organization’s social media accounts and incorporating a more personal approach to their responses to individual users. There is still much to be learned from the integration of social media as a tool for disaster response, and it is important that practitioners keep up with the ever-evolving media landscape that governs the world in which we live.Bachelor of Art