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It is widely held that social media is a valuable source of information for responders to mass emergencies. However, little is known about how much useful situational information social media data streams contain and how this content varies across types of events. In this paper, we conduct a thorough investigation of the novel situational information provided by public Twitter posts produced during...
Twitter has emerged as a platform that is heavily used during disasters. Therefore, as an event unfolds, it generates varying levels of online engagement from victims as well as onlookers (both physical and virtual). Because methods for mining disaster-related content at scale must contend with the problem of filtering out vast numbers of unrelated posts, any prior knowledge about the characteristics...
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