The Earth Mover's Distance as a Metric for Image Retrieval
International Journal of Computer Vision
A Framework for Generating Network-Based Moving Objects
Geoinformatica
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Location Privacy in Mobile Systems: A Personalized Anonymization Model
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Data Mining: Concepts and Techniques
Data Mining: Concepts and Techniques
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
L-diversity: Privacy beyond k-anonymity
ACM Transactions on Knowledge Discovery from Data (TKDD)
PRIVE: anonymous location-based queries in distributed mobile systems
Proceedings of the 16th international conference on World Wide Web
An Efficient Earth Mover's Distance Algorithm for Robust Histogram Comparison
IEEE Transactions on Pattern Analysis and Machine Intelligence
Preventing Location-Based Identity Inference in Anonymous Spatial Queries
IEEE Transactions on Knowledge and Data Engineering
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
Mining user similarity based on location history
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
OpenStreetMap: User-Generated Street Maps
IEEE Pervasive Computing
Mining interesting locations and travel sequences from GPS trajectories
Proceedings of the 18th international conference on World wide web
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
Non-Exposure Location Anonymity
ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering
p-Sensitivity: A Semantic Privacy-Protection Model for Location-based Services
MDMW '08 Proceedings of the 2008 Ninth International Conference on Mobile Data Management Workshops
Location Diversity: Enhanced Privacy Protection in Location Based Services
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Query l-diversity in Location-Based Services
MDM '09 Proceedings of the 2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
Feeling-based location privacy protection for location-based services
Proceedings of the 16th ACM conference on Computer and communications security
Privacy-aware mobile services over road networks
Proceedings of the VLDB Endowment
Collaborative location and activity recommendations with GPS history data
Proceedings of the 19th international conference on World wide web
The PROBE Framework for the Personalized Cloaking of Private Locations
Transactions on Data Privacy
Preserving user location privacy in mobile data management infrastructures
PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
POAuth: privacy-aware open authorization for native apps on smartphone platforms
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
Enabling secure location-based services in mobile cloud computing
Proceedings of the second ACM SIGCOMM workshop on Mobile cloud computing
Location anonymization using real car trace data for location based services
Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication
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As the use of mobile devices increases, a location-based service (LBS) becomes increasingly popular because it provides more convenient context-aware services. However, LBS introduces problematic issues for location privacy due to the nature of the service. Location privacy protection methods based on k-anonymity and l-diversity have been proposed to provide anonymized use of LBS. However, the k-anonymity and l-diversity methods still can endanger the user's privacy because location semantic information could easily be breached while using LBS. This paper presents a novel location privacy protection technique, which protects the location semantics from an adversary. In our scheme, location semantics are first learned from location data. Then, the trusted-anonymization server performs the anonymization using the location semantic information by cloaking with semantically heterogeneous locations. Thus, the location semantic information is kept secure as the cloaking is done with semantically heterogeneous locations and the true location information is not delivered to the LBS applications. This paper proposes algorithms for learning location semantics and achieving semantically secure cloaking.