iGPS: Privacy-Preserving Geo-Proximity Services in Location-based Social Networks (Jianliang Xu et al.)

A geo-proximity service in location-based social networks alerts a mobile user when any of his/her friends is in the geographical vicinity, so as to enrich social activities such as collaborative working and information sharing. To realize such services, existing systems collect location information from mobile users for proximity computation, which raises serious privacy concerns. This project aims to develop more sophisticated location update and query techniques that support these geo-proximity services while preserving the location privacy of mobile users.


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Patent Application:

Grant Support:

This project is supported by the Research Grants Council (RGC), Hong Kong SAR, China (Project HKBU211512) and the Hong Kong Scholar Program (Grant XJ2011008).

For further information on this research topic, please contact Prof. Jianliang Xu.