Clustering Geo-Indistinguishability for Privacy of Continuous Location Traces
2019 4th International Conference on Computing, Communications and Security (ICCCS)(2019)
摘要
We consider privacy of obfuscated location reports that can be correlated through time/space to estimate the real position of a user. We propose a user-centric Location Privacy-Preserving Mechanism (LPPM) that protects users not only against single reports, but also over time, against continuous reports. Our proposed mechanism, designated clustering geo-indistinguishability, creates obfuscation clusters to aggregate nearby locations into a single obfuscated location. To evaluate the utility of the mechanism, we resorted to a real use-case based on geofencing. Our evaluation results have shown a suitable privacy-utility trade-off for the proposed clustering geo-indistinguishability mechanism.
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关键词
Location Privacy,Location Privacy-Preserving Mechanisms,Location-Based Services,Geo-Indistinguishability,Clustering,Geofencing
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