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Proceedings Paper

On location-based target tracking using social media as sensors (Conference Presentation)
Author(s): Tarek Abdelzaher; Prasanna Giridhar
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Paper Abstract

The paper discusses challenges in exploiting geotagged social media posts (such as Instagram images) for purposes of target (event) tracking. The argument for social media exploitation for tracking lies in that physical events, such as protests, acts of terror, or natural disasters elicit a response on social media in the neighborhood of the event. However, the density of social media posts is proportional to the local population density. Hence, inferred event locations based on the ensuing distribution of posts are skewed by disparities in population density around the true event location. The paper describes an unsupervised approach to neutralize the effect of uneven population density. Evaluation using Instagram footprints of recent events shows that the approach leads to a much more accurate estimation of real event trajectories.

Paper Details

Date Published: 14 May 2018
Proc. SPIE 10635, Ground/Air Multisensor Interoperability, Integration, and Networking for Persistent ISR IX, 1063503 (14 May 2018); doi: 10.1117/12.2306728
Show Author Affiliations
Tarek Abdelzaher, Univ. of Illinois (United States)
Prasanna Giridhar, Univ. of Illinois (United States)

Published in SPIE Proceedings Vol. 10635:
Ground/Air Multisensor Interoperability, Integration, and Networking for Persistent ISR IX
Michael A. Kolodny; Dietrich M. Wiegmann; Tien Pham, Editor(s)

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