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Effective mix-zone anonymization techniques for mobile travelers / Balaji Palanisamy in Geoinformatica, vol 18 n° 1 (January 2014)
[article]
Titre : Effective mix-zone anonymization techniques for mobile travelers Type de document : Article/Communication Auteurs : Balaji Palanisamy, Auteur ; Ling Liu, Auteur Année de publication : 2014 Article en page(s) : pp 135 - 164 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Société de l'information
[Termes IGN] anonymisation
[Termes IGN] protection de la vie privée
[Termes IGN] réseau routier
[Termes IGN] service fondé sur la positionRésumé : (Auteur) Mix-zones are recognized as an alternative and complementary approach to spatial cloaking based location privacy protection. Unlike spatial cloaking techniques that perturb the location resolution through location k-anonymization, mix-zones break the continuity of location exposure by ensuring that users’ movements cannot be traced while they are inside a mix-zone. In this paper, we provide an overview of some known attacks that make mix-zones on road networks vulnerable and discuss a set of counter measures to make road network mix-zones attack-resilient. Concretely, we categorize the vulnerabilities of road network mix-zones into two classes: one due to the road network characteristics and user mobility, and the other due to the temporal, spatial and semantic correlations of location queries. We propose efficient road network mix-zone construction techniques that are resilient to attacks based on road network characteristics. Furthermore, we enhance the road network mix-zone framework with the concept of delay-tolerant mix-zones that introduce a combination of spatial and temporal shifts in the location exposure of the users to achieve higher anonymity. We study the factors that impact on the effectiveness of each of these attacks and evaluate the efficiency of the counter measures through extensive experiments on traces produced by GTMobiSim at different scales of geographic maps. Numéro de notice : A2014-030 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-013-0194-y Date de publication en ligne : 16/11/2013 En ligne : https://doi.org/10.1007/s10707-013-0194-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32935
in Geoinformatica > vol 18 n° 1 (January 2014) . - pp 135 - 164[article]Réservation
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