Understanding the privacy-efficiency trade-off in location based queries
SPRINGL '08 Proceedings of the SIGSPATIAL ACM GIS 2008 International Workshop on Security and Privacy in GIS and LBS
Private Queries and Trajectory Anonymization: a Dual Perspective on Location Privacy
Transactions on Data Privacy
Location Diversity: Enhanced Privacy Protection in Location Based Services
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Privacy for real-time location-based services
SIGSPATIAL Special
Privacy and location anonymization in location-based services
SIGSPATIAL Special
Privacy in location-based services: a system architecture perspective
SIGSPATIAL Special
A Hybrid Technique for Private Location-Based Queries with Database Protection
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Spatial Cloaking Revisited: Distinguishing Information Leakage from Anonymity
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
A Location Privacy Aware Friend Locator
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Data management challenges for computational transportation
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services
Privately querying location-based services with SybilQuery
Proceedings of the 11th international conference on Ubiquitous computing
Casper*: Query processing for location services without compromising privacy
ACM Transactions on Database Systems (TODS)
PAD: privacy-area aware, dummy-based location privacy in mobile services
Proceedings of the Seventh ACM International Workshop on Data Engineering for Wireless and Mobile Access
Navigational path privacy protection: navigational path privacy protection
Proceedings of the 18th ACM conference on Information and knowledge management
Feeling-based location privacy protection for location-based services
Proceedings of the 16th ACM conference on Computer and communications security
Preventing velocity-based linkage attacks in location-aware applications
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Protecting location privacy against spatial inferences: the PROBE approach
Proceedings of the 2nd SIGSPATIAL ACM GIS 2009 International Workshop on Security and Privacy in GIS and LBS
Privacy-aware mobile services over road networks
Proceedings of the VLDB Endowment
Privacy preserving group nearest neighbor queries
Proceedings of the 13th International Conference on Extending Database Technology
Private location-based information retrieval through user collaboration
Computer Communications
Context quality and privacy - friends or rivals?
QuaCon'09 Proceedings of the 1st international conference on Quality of context
The PROBE Framework for the Personalized Cloaking of Private Locations
Transactions on Data Privacy
Enabling search services on outsourced private spatial data
The VLDB Journal — The International Journal on Very Large Data Bases
A taxonomy of approaches to preserve location privacy in location-based services
International Journal of Computational Science and Engineering
Nearest neighbor search with strong location privacy
Proceedings of the VLDB Endowment
"Don't trust anyone": Privacy protection for location-based services
Pervasive and Mobile Computing
Design and analysis of a ranking approach to private location-based services
ACM Transactions on Database Systems (TODS)
Towards communication-efficient private location dependent queries
Proceedings of the 2011 ACM Symposium on Applied Computing
Query-aware location anonymization for road networks
Geoinformatica
Protecting location privacy using location semantics
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining
Privacy-aware mobile location-based systems
Proceedings of the 1st international workshop on Mobile location-based service
Privacy preservation in the dissemination of location data
ACM SIGKDD Explorations Newsletter
Trajectory privacy in location-based services and data publication
ACM SIGKDD Explorations Newsletter
The VLDB Journal — The International Journal on Very Large Data Bases
Location privacy protection in the presence of users' preferences
WAIM'11 Proceedings of the 12th international conference on Web-age information management
Preserving privacy of moving objects via temporal clustering of spatio-temporal data streams
Proceedings of the 4th ACM SIGSPATIAL International Workshop on Security and Privacy in GIS and LBS
A spatial cloaking framework based on range search for nearest neighbor search
DPM'09/SETOP'09 Proceedings of the 4th international workshop, and Second international conference on Data Privacy Management and Autonomous Spontaneous Security
An open design privacy-enhancing platform supporting location-based applications
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
Transactions on Data Privacy
Shortest path computation with no information leakage
Proceedings of the VLDB Endowment
Towards planet-scale localization on smartphones with a partial radiomap
Proceedings of the 4th ACM international workshop on Hot topics in planet-scale measurement
Countering overlapping rectangle privacy attack for moving kNN queries
Information Systems
Anonymous spatial query on non-uniform data
Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services
Daisy: the center for data-intensive systems at Aalborg University
ACM SIGMOD Record
Differential private trajectory protection of moving objects
Proceedings of the Third ACM SIGSPATIAL International Workshop on GeoStreaming
Private proximity detection and monitoring with vicinity regions
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
Preserving location privacy without exact locations in mobile services
Frontiers of Computer Science: Selected Publications from Chinese Universities
Geo-indistinguishability: differential privacy for location-based systems
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
A Privacy Preserving Method Using Privacy Enhancing Techniques for Location Based Services
Mobile Networks and Applications
Proceedings of the 4th ACM conference on Data and application security and privacy
Location anonymization using real car trace data for location based services
Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication
Protecting query privacy in location-based services
Geoinformatica
Privacy Preserving Cloud-Based Computing Platform (PPCCP) for Using Location Based Services
UCC '13 Proceedings of the 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing
A profile anonymization model for location-based services
Journal of Computer Security
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In a mobile service scenario, users query a server for nearby points of interest but they may not want to disclose their locations to the service. Intuitively, location privacy may be obtained at the cost of query performance and query accuracy. The challenge addressed is how to obtain the best possible performance, subjected to given requirements for location privacy and query accuracy. Existing privacy solutions that use spatial cloaking employ complex server query processing techniques and entail the transmission of large quantities of intermediate result. Solutions that use transformation-based matching generally fall short in offering practical query accuracy guarantees. Our proposed framework, called SpaceTwist, rectifies these shortcomings for k nearest neighbor (kNN) queries. Starting with a location different from the user's actual location, nearest neighbors are retrieved incrementally until the query is answered correctly by the mobile terminal. This approach is flexible, needs no trusted middleware, and requires only well-known incremental NN query processing on the server. The framework also includes a server-side granular search technique that exploits relaxed query accuracy guarantees for obtaining better performance. The paper reports on empirical studies that elicit key properties of SpaceTwist and suggest that the framework offers very good performance and high privacy, at low communication cost.