气候变化领域集成服务门户(CCPortal): Silence of the Tweets: incorporating social media activity drop-offs into crisis detection

CCPortal

DOI	10.1007/s11069-020-04044-2
	Silence of the Tweets: incorporating social media activity drop-offs into crisis detection
	Samuels R.; Taylor J.E.; Mohammadi N.
发表日期	2020
ISSN	0921030X
起始页码	1455
结束页码	1477
卷号	103 期号:1
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.
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
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205920
作者单位	Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, United States
推荐引用方式 GB/T 7714	Samuels R.,Taylor J.E.,Mohammadi N.. Silence of the Tweets: incorporating social media activity drop-offs into crisis detection[J],2020,103(1).
APA	Samuels R.,Taylor J.E.,&Mohammadi N..(2020).Silence of the Tweets: incorporating social media activity drop-offs into crisis detection.Natural Hazards,103(1).
MLA	Samuels R.,et al."Silence of the Tweets: incorporating social media activity drop-offs into crisis detection".Natural Hazards 103.1(2020).