2015 | OriginalPaper | Buchkapitel
Location Semantics Protection Based on Bayesian Inference
verfasst von : Zhengang Wu, Zhong Chen, Jiawei Zhu, Huiping Sun, Zhi Guan
Erschienen in: Web-Age Information Management
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In mobile Internet, popular Location-Based Services (LBSs) recommend Point-of-Interest (POI) data according to physical positions of smartphone users. However, untrusted LBS providers can violate location privacy by analyzing user requests semantically. Therefore, this paper aims at protecting user privacy in location-based applications by evaluating disclosure risks on sensitive location semantics. First, we introduce a novel method to model location semantics for user privacy using Bayesian inference and demonstrate details of computing the semantic privacy metric. Next, we design a cloaking region construction algorithm against the leakage of sensitive location semantics. Finally, a series of experiments evaluate this solution’s performance to show its availability.