k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining
Injecting utility into anonymized datasets
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Nearest and reverse nearest neighbor queries for moving objects
The VLDB Journal — The International Journal on Very Large Data Bases
Utility-based anonymization using local recoding
Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining
Protection of Location Privacy using Dummies for Location-based Services
ICDEW '05 Proceedings of the 21st International Conference on Data Engineering Workshops
The new Casper: query processing for location services without compromising privacy
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
Location anonymity in continuous location-based services
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
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
Non-Exposure Location Anonymity
ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering
Privacy-Conscious Location-Based Queries in Mobile Environments
IEEE Transactions on Parallel and Distributed Systems
Enabling private continuous queries for revealed user locations
SSTD'07 Proceedings of the 10th international conference on Advances in spatial and temporal databases
A new cloaking algorithm using Hilbert curves for privacy protection
Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Security and Privacy in GIS and LBS
History trajectory privacy-preserving through graph partition
Proceedings of the 1st international workshop on Mobile location-based service
Trajectory privacy in location-based services and data publication
ACM SIGKDD Explorations Newsletter
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
The shy mayor: private badges in geosocial networks
ACNS'12 Proceedings of the 10th international conference on Applied Cryptography and Network Security
Preserving location privacy without exact locations in mobile services
Frontiers of Computer Science: Selected Publications from Chinese Universities
Anonymizing continuous queries with delay-tolerant mix-zones over road networks
Distributed and Parallel Databases
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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 δp-privacy model and a δq-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.