DOI: 10.1007/s11069-020-04044-2
论文题名: Silence of the Tweets: incorporating social media activity drop-offs into crisis detection
作者: Samuels R. ; Taylor J.E. ; Mohammadi N.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 103, 期: 1 起始页码: 1455
结束页码: 1477
语种: 英语
中文关键词: Crisis informatics
; Crisis response
; Hurricanes
; Social media
; Vulnerability
英文关键词: disaster management
; extreme event
; Internet
; natural disaster
; social media
英文摘要: Although extreme events are inevitable, the associated cost to infrastructure and human life is not. We can mitigate these costs through improving the information available to emergency responders during and after crisis events via social media. Recent research has identified a correlation between spikes of Twitter activity and the infrastructural damage incurred during natural disasters. This research, however, overlooks emergencies occurring in areas in which people have lost power, lack the ability to connect to the internet, or, due to differences in social media perceptions, are uncompelled to Tweet during a disaster. To assess the prevalence of Twitter activity decreases and the relative importance of those decreases in detecting areas in crisis, we study crisis-driven Twitter activity deviations from “normal” in nine cities affected by the 2017 Atlantic hurricane season. In analyzing more than 1.1 million Tweets across the season, we find that there is a stronger, more significant correlation between infrastructure damage and a metric that prioritizes both increases and decreases in Twitter activity than one that prioritizes only Twitter activity increases. These findings indicate that social media drop-offs could be representative of significant distress, and accounting for the apparent survivorship bias in social media will be critical to the equitable use of social media in crisis applications. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168719
Appears in Collections: 气候变化与战略
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作者单位: Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, United States
Recommended Citation:
Samuels R.,Taylor J.E.,Mohammadi N.. Silence of the Tweets: incorporating social media activity drop-offs into crisis detection[J]. Natural Hazards,2020-01-01,103(1)