A framework for expressing and combining preferences
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
FOCS '95 Proceedings of the 36th Annual Symposium on Foundations of Computer Science
Replication is not needed: single database, computationally-private information retrieval
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Location Privacy in Mobile Systems: A Personalized Anonymization Model
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
\ell -Diversity: Privacy Beyond \kappa -Anonymity
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
The new Casper: query processing for location services without compromising privacy
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
A peer-to-peer spatial cloaking algorithm for anonymous location-based service
GIS '06 Proceedings of the 14th annual ACM international symposium on Advances in geographic information systems
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
From data privacy to location privacy: models and algorithms
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Supporting anonymous location queries in mobile environments with privacygrid
Proceedings of the 17th international conference on World Wide Web
Private queries in location based services: anonymizers are not necessary
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Tinycasper: a privacy-preserving aggregate location monitoring system in wireless sensor networks
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Spatial generalisation algorithms for LBS privacy preservation
Journal of Location Based Services - Privacy Aware and Location-Based Mobile Services
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
Protecting Moving Trajectories with Dummies
MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
Query l-diversity in Location-Based Services
MDM '09 Proceedings of the 2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
Enabling private continuous queries for revealed user locations
SSTD'07 Proceedings of the 10th international conference on Advances in spatial and temporal databases
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Many mobile phones have a GPS sensor that can report accurate location. Thus, if these location data are not protected adequately, they may cause privacy breeches. Moreover, several reports are available where persons have been stalked through GPS. The contributions of this paper are in two folds. First, we examine privacy issues in snapshot queries, and present our work and results in this area. The proposed method can guarantee that all queries are protected, while previously proposed algorithms only achieve a low success rate in some situations. Next, we discuss continuous queries and illustrate that current snapshot solutions cannot be applied to continuous queries. Then, we present results for our robust models for continuous queries. We will introduce a novel suite of algorithms called MobiPriv that addressed the shortcomings of previous work in location and query privacy in mobile systems. We evaluated the efficiency and effectiveness of the MobiPriv scheme against previously proposed anonymization approaches. For our experiments, we utilized real world traffic volume data, real world road network and mobile users generated realistically by a mobile object generator.