A Framework for Generating Network-Based Moving Objects
Geoinformatica
Analysis of the Clustering Properties of the Hilbert Space-Filling Curve
IEEE Transactions on Knowledge and Data Engineering
Chord: a scalable peer-to-peer lookup protocol for internet applications
IEEE/ACM Transactions on Networking (TON)
Location Privacy in Mobile Systems: A Personalized Anonymization Model
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
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
PRIVE: anonymous location-based queries in distributed mobile systems
Proceedings of the 16th international conference on World Wide Web
Preventing Location-Based Identity Inference in Anonymous Spatial Queries
IEEE Transactions on Knowledge and Data Engineering
Spatial Cloaking Revisited: Distinguishing Information Leakage from Anonymity
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Distortion-based anonymity for continuous queries in location-based mobile services
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Privacy-Conscious Location-Based Queries in Mobile Environments
IEEE Transactions on Parallel and Distributed Systems
MOBIHIDE: a mobilea peer-to-peer system for anonymous location-based queries
SSTD'07 Proceedings of the 10th international conference on Advances in spatial and temporal databases
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Due to the advancement of GPS facilitates, the use of Location Based Service (LBS) has recently been increased rapidly. Since LBS needs the location of user, the private and confidential information of user may disclose to others. To protect the privacy of users, many cloaking algorithms have been proposed to hide user's actual location. The existing Hilbert cloaking algorithm shows its high accuracy in terms of location privacy, but it has a drawback that it extends a cloaking region inefficiently due to the dimensionality reduction. In this paper, we propose a new cloaking algorithm which can avoid the unnecessary extension of cloaking region. Our algorithm optimizes the generation of a cloaking region by storing adjacent cell information being not connected by Hilbert curve. From experimental results, it is shown that our proposed cloaking algorithm outperforms the existing Hilbert algorithm.