Testing the event witnessing status of micro-bloggers from evidence in their micro-blogs

Marie Truelove, Maria Vasardani and Stephan Winter

PLOS ONE, 2017, vol. 12, issue 12, 1-33

Abstract: This paper demonstrates a framework of processes for identifying potential witnesses of events from evidence they post to social media. The research defines original evidence models for micro-blog content sources, the relative uncertainty of different evidence types, and models for testing evidence by combination. Methods to filter and extract evidence using automated and semi-automated means are demonstrated using a Twitter case study event. Further, an implementation to test extracted evidence using Dempster Shafer Theory of Evidence are presented. The results indicate that the inclusion of evidence from micro-blog text and linked image content can increase the number of micro-bloggers identified at events, in comparison to the number of micro-bloggers identified from geotags alone. Additionally, the number of micro-bloggers that can be tested for evidence corroboration or conflict, is increased by incorporating evidence identified in their posting history.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0189378

DOI: 10.1371/journal.pone.0189378

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