Title
Finding Eyewitness Tweets During Crises.
Abstract
Disaster response agencies have started to incorporate social media as a source of fast-breaking information to understand the needs of people affected by the many crises that occur around the world. These agencies look for tweets from within the region affected by the crisis to get the latest updates of the status of the affected region. However only 1% of all tweets are geotagged with explicit location information. First responders lose valuable information because they cannot assess the origin of many of the tweets they collect. In this work we seek to identify non-geotagged tweets that originate from within the crisis region. Towards this, we address three questions: (1) is there a difference between the language of tweets originating within a crisis region and tweets originating outside the region, (2) what are the linguistic patterns that can be used to differentiate within-region and outside-region tweets, and (3) for non-geotagged tweets, can we automatically identify those originating within the crisis region in real-time?
Year
DOI
Venue
2014
10.3115/v1/W14-2509
meeting of the association for computational linguistics
Field
DocType
Volume
History,Internet privacy,Social media
Journal
abs/1403.1773
Citations 
PageRank 
References 
11
0.64
15
Authors
5
Name
Order
Citations
PageRank
Fred Morstatter152831.21
Nichola Lubold2274.46
Heather Pon-Barry312616.09
Jürgen Pfeffer434626.57
Huan Liu512695741.34