http://dx.doi.org/10.1145/1653771.1653808">
 

Document Type

Conference Paper

Department/Unit

Department of Computer Science

Title

Distortion-based anonymity for continuous queries in location-based mobile services

Language

English

Abstract

Privacy preservation has recently received considerable attention for location-based mobile services. Various location cloaking approaches have been proposed to protect the location privacy of mobile users. However, existing cloaking approaches are ill-suited for continuous queries. In view of the privacy disclosure and poor QoS (Quality of Service) under continuous query anonymization, in this paper, we propose a Δ p-privacy model and a Δ q-distortion model to balance the tradeoff between user privacy and QoS. Furthermore, two incremental utility-based cloaking algorithms - - bottom-up cloaking and hybrid cloaking, are proposed to anonymize continuous queries. Experimental results validate the efficiency and effectiveness of the proposed algorithms. © 2009 ACM.

Keywords

Continuous queries, Information privacy, Location-based services, Privacy protection

Publication Date

2009

Source Publication Title

Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems

Start Page

256

End Page

265

Conference Location

Seattle, United States

Publisher

ACM

ISBN (print)

9781605586496

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