Bibliography | Riaz, Zohaib; Dürr, Frank; Rothermel, Kurt: On the Privacy of Frequently Visited User Locations. In: Proceedings of the Seventeenth International Conference on Mobile Data Management: MDM'16; Porto, Portugal, June 13-16, 2016. University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology. pp. 1-10, english. Porto, Portugal: IEEE Computer Society, June 13, 2016. Article in Proceedings (Conference Paper).
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Corporation | IEEE International Conference on Mobile Data Management |
CR-Schema | K.4.1 (Computers and Society Public Policy Issues) C.2.4 (Distributed Systems)
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Keywords | Location Privacy, Location-based Applications, Semantic Locations, Visit-Frequency, Frequent locations, Geo-social networking, Location Servers, Non-trusted systems |
Abstract | With the fast adoption of location-enabled devices, Location-based Applications (LBAs) have become widely popular. While LBAs enable highly useful concepts such as geo-social networking, their use also raises serious privacy concerns as it involves sharing of location data with non-trusted third parties. In this respect, we propose an approach that protects the frequently visited locations of users, e.g., a bar, against inferences from longterm monitoring of their location data. Such inferences equate a privacy leak as they reveal a user’s personal behavior and interests to possibly malicious non-trusted parties.
To this end, we first present a study of a dataset of location check-ins to show the existence of this threat among users of LBAs. We then propose our approach to protect visit-frequency of the users to different locations by distributing their location data among multiple third-party Location Servers. This distribution not only serves to avoid a single point of failure for privacy in our system, it also allows the users to control which LBA accesses what information about them. We also describe a number of possible attacks against our privacy approach and evaluate them on real-data from the check-ins dataset. Our results show that our approach can effectively hide the frequent locations while supporting good quality-of-service for the LBAs.
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Full text and other links | PDF (1280845 Bytes)
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Contact | zohaib.riaz@ipvs.uni-stuttgart.de |
Department(s) | University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems
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Project(s) | PriLoc
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Entry date | April 11, 2016 |
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