%0 Conference Proceedings
%T Sanitization of Call Detail Records via Differentially-Private Bloom Filters
%+ Helwan University [Caire]
%+ Université de Rennes (UR)
%+ Dalhousie University [Halifax]
%A Alaggan, Mohammad
%A Gambs, Sébastien
%A Matwin, Stan
%A Tuhin, Mohammed
%Z Part 5: Privacy and Trust
%< avec comité de lecture
%( Lecture Notes in Computer Science
%B 29th IFIP Annual Conference on Data and Applications Security and Privacy (DBSEC)
%C Fairfax, VA, United States
%Y Pierangela Samarati
%I Springer International Publishing
%3 Data and Applications Security and Privacy XXIX
%V LNCS-9149
%P 223-230
%8 2015-07-13
%D 2015
%R 10.1007/978-3-319-20810-7_15
%Z Computer Science [cs]/Computers and Society [cs.CY]
%Z Computer Science [cs]/Cryptography and Security [cs.CR]
%Z Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC]
%Z Computer Science [cs]/Ubiquitous ComputingConference papers
%X Publishing directly human mobility data raises serious privacy issues due to its inference potential, such as the (re-)identification of individuals. To address these issues and to foster the development of such applications in a privacy-preserving manner, we propose in this paper a novel approach in which Call Detail Records (CDRs) are summarized under the form of a differentially-private Bloom filter for the purpose of privately estimating the number of mobile service users moving from one area (region) to another in a given time frame. Our sanitization method is both time and space efficient, and ensures differential privacy while solving the shortcomings of a solution recently proposed. We also report on experiments conducted using a real life CDRs dataset, which show that our method maintains a high utility while providing strong privacy.
%G English
%Z TC 11
%Z WG 11.3
%2 https://inria.hal.science/hal-01745827/document
%2 https://inria.hal.science/hal-01745827/file/340025_1_En_15_Chapter.pdf
%L hal-01745827
%U https://inria.hal.science/hal-01745827
%~ IFIP-LNCS
%~ IFIP
%~ IFIP-TC
%~ IFIP-WG
%~ IFIP-TC11
%~ IFIP-WG11-3
%~ TDS-MACS
%~ IFIP-DBSEC
%~ TEST-UNIV-RENNES
%~ UNIV-RENNES
%~ IFIP-LNCS-9149