Foundations of statistical natural language processing
Foundations of statistical natural language processing
A Framework for Generating Network-Based Moving Objects
Geoinformatica
Protecting Respondents' Identities in Microdata Release
IEEE Transactions on Knowledge and Data Engineering
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
Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
Preventing Location-Based Identity Inference in Anonymous Spatial Queries
IEEE Transactions on Knowledge and Data Engineering
Preserving privacy in gps traces via uncertainty-aware path cloaking
Proceedings of the 14th ACM conference on Computer and communications security
A Profile Anonymization Model for Privacy in a Personalized Location Based Service Environment
MDM '08 Proceedings of the The Ninth International Conference on Mobile Data Management
Location-Based Services: Back to the Future
IEEE Pervasive Computing
Spatial generalisation algorithms for LBS privacy preservation
Journal of Location Based Services - Privacy Aware and Location-Based Mobile Services
Location Diversity: Enhanced Privacy Protection in Location Based Services
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Spatial Cloaking Revisited: Distinguishing Information Leakage from Anonymity
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Anonymity and Historical-Anonymity in Location-Based Services
Privacy in Location-Based Applications
Preserving Anonymity of Recurrent Location-Based Queries
TIME '09 Proceedings of the 2009 16th International Symposium on Temporal Representation and Reasoning
Query m-Invariance: Preventing Query Disclosures in Continuous Location-Based Services
MDM '10 Proceedings of the 2010 Eleventh International Conference on Mobile Data Management
Unraveling an old cloak: k-anonymity for location privacy
Proceedings of the 9th annual ACM workshop on Privacy in the electronic society
SP '11 Proceedings of the 2011 IEEE Symposium on Security and Privacy
Protecting privacy against location-based personal identification
SDM'05 Proceedings of the Second VDLB international conference on Secure Data Management
Measuring query privacy in location-based services
Proceedings of the second ACM conference on Data and Application Security and Privacy
Collaborative location privacy with rational users
GameSec'11 Proceedings of the Second international conference on Decision and Game Theory for Security
Protecting query privacy in location-based services
Geoinformatica
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Location-based services have been enduring a fast development for almost fifteen years. Due to the lack of proper privacy protection, especially in the early stage of the development, an enormous amount of user request records have been collected. This exposes potential threats to users' privacy as new contextual information can be extracted from such records. In this paper, we study query dependency which can be derived from users' request history, and investigate its impact on users' query privacy. To achieve our goal, we present an approach to compute the probability for a user to issue a query, by taking into account both user's query dependency and observed requests. We propose new metrics incorporating query dependency for query privacy, and adapt spatial generalisation algorithms in the literature to generate requests satisfying users' privacy requirements expressed in the new metrics. Through experiments, we evaluate the impact of query dependency on query privacy and show that our proposed metrics and algorithms are effective and efficient for practical applications.