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Catch me if you can: How Geo-indistinguishability affects utility in mobility-based geographic datasets

  • Adriano Di Luzio
  • , Georgi Dikov
  • , Aline Carneiro Viana
  • , Catuscia Palamidessi
  • , Konstantinos Chatzikokolakis
  • , Julinda Stefa
  • University of Rome
  • TomTom International BV
  • INRIA
  • University of Athens

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper sheds light on the trade-offs between privacy and utility in mobility-based geographic datasets. We aim at finding out whether it is possible to protect the privacy of the users in a dataset while, at the same time, maintaining intact the utility of the information that it contains. In particular, we focus on geo-indistinguishability as a privacy-preserving sanitization methodology, and we evaluate its effects on the utility of the Geolife dataset. We test the sanitized dataset in two real world scenarios: 1. Deploying an infrastructure of WiFi hotspots to offload the mobile traffic of users living, working, or commuting in a wide geographic area; 2. Simulating the spreading of a gossip-based epidemic as the outcome of a device-to-device communication protocol. We show the extent to which the current geo-indistinguishability techniques trade privacy for utility in real world applications and we focus on their effects at the levels of the population as a whole and of single individuals.

Original languageEnglish
Title of host publicationLocalRec 2019 - Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Location-Based Recommendations, Geosocial Networks and Geoadvertising
EditorsPanagiotis Bouros, Tamraparni Dasu, Yaron Kanza, Matthias Renz, Dimitris Sacharidis
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450369633
DOIs
Publication statusPublished - 5 Nov 2019
Event3rd ACM SIGSPATIAL International Workshop on Location-Based Recommendations, Geosocial Networks and Geoadvertising, LocalRec 2019, held in conjunction with the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2019 - Chicago, United States
Duration: 5 Nov 2019 → …

Publication series

NameLocalRec 2019 - Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Location-Based Recommendations, Geosocial Networks and Geoadvertising

Conference

Conference3rd ACM SIGSPATIAL International Workshop on Location-Based Recommendations, Geosocial Networks and Geoadvertising, LocalRec 2019, held in conjunction with the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2019
Country/TerritoryUnited States
CityChicago
Period5/11/19 → …

Keywords

  • Anonymity
  • Geo-indistinguishability-privacy
  • Location based systems
  • Mobility
  • Utility

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