|Hyperlocal Toponym Usage in Storm-Related Social Media
|ISCRAM 2020 Conference Proceedings – 17th International Conference on Information Systems for Crisis Response and Management
|Volunteered Geographic Information, Twitter, Information Behavior, Crisis Informatics, Emergency Management.
|Crisis responders need to locate events reported in social media messages that typically lack geographic metadata such as geotags. Toponyms, places names referenced in messages, provide another source of geographic information, however, the availability and granularity of toponyms in crisis social media remain poorly understood. This study examines toponym usage and granularity across six categories of crisis-related information posted on Twitter during a severe storm. Findings show users often include geographic information in messages describing local and remote storm events but do so rarely when discussing other topics, more often use toponyms than geotags when describing local events, and tend to include fine-grained toponyms in reports of infrastructure damage and service disruption and course-grained toponyms in other kinds of storm-related messages. These findings present requirements for hyperlocal geoparsing techniques and suggest that social media monitoring presents more immediate affordances for course-grained damage assessment than fine-grained situational awareness during a crisis.
|Texas Tech University
|Place of Publication
|Blacksburg, VA (USA)
|Amanda Hughes; Fiona McNeill; Christopher W. Zobel
|Abbreviated Series Title
|Social Media for Disaster Response and Resilie
|17th International Conference on Information Systems for Crisis Response and Management
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