A heuristic attack reconstructs user identifiers in GPS trip data by exploiting trip continuation, home locations, and TF-IDF location co-visits, showing significant re-identification risk and unreliable protection from trajectory truncation.
In Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geo- graphic Information Systems (GIS ’09)
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Investigating Vulnerabilities of GPS Trip Data to Trajectory-User Linking Attacks
A heuristic attack reconstructs user identifiers in GPS trip data by exploiting trip continuation, home locations, and TF-IDF location co-visits, showing significant re-identification risk and unreliable protection from trajectory truncation.