Abstract
Location-Based Service (LBS) providers can send geo-tagged data to mobile users who report their current location information. Location-related user privacy is a vital concern since untrusted LBS can monitor and misuse user location information. This paper aims at how to efficiently protect location privacy in query processing. In proxy-based location anonymizers, location cloaking algorithms need heavy bandwidth for query processing after blurring exact locations into a region. To alleviate it, the proposed query framework can integrate location cloaking and data caching. Next, we devise a novel location anonymization algorithm which takes advantage of the caching feature. Finally, we evaluate this solution experimentally for showing its improvement.
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Acknowledgment
This work is partially supported by the HGJ National Significant Science and Technology Projects under Grant No. 2012ZX01039-004-009, Key Lab of Information Network Security, Ministry of Public Security under Grant No.C11606, the National Natural Science Foundation of China under Grant No. 61170263.
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Wu, Z., Yu, L., Sun, H., Guan, Z., Chen, Z. (2014). Cache-Aware Query Processing with User Privacy Protection in Location-Based Services. In: Chen, Y., et al. Web-Age Information Management. WAIM 2014. Lecture Notes in Computer Science(), vol 8597. Springer, Cham. https://doi.org/10.1007/978-3-319-11538-2_23
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DOI: https://doi.org/10.1007/978-3-319-11538-2_23
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