1. bookVolume 2018 (2018): Issue 2 (April 2018)
Journal Details
License
Format
Journal
eISSN
2299-0984
First Published
16 Apr 2015
Publication timeframe
4 times per year
Languages
English
access type Open Access

Privacy-preserving Wi-Fi Analytics

Published Online: 20 Feb 2018
Page range: 4 - 26
Received: 31 Aug 2017
Accepted: 16 Dec 2017
Journal Details
License
Format
Journal
eISSN
2299-0984
First Published
16 Apr 2015
Publication timeframe
4 times per year
Languages
English
Abstract

As communications-enabled devices are becoming more ubiquitous, it becomes easier to track the movements of individuals through the radio signals broadcasted by their devices. Thus, while there is a strong interest for physical analytics platforms to leverage this information for many purposes, this tracking also threatens the privacy of individuals. To solve this issue, we propose a privacy-preserving solution for collecting aggregate mobility patterns while satisfying the strong guarantee of ε-differential privacy. More precisely, we introduce a sanitization mechanism for efficient, privacy-preserving and non-interactive approximate distinct counting for physical analytics based on perturbed Bloom filters called Pan-Private BLIP. We also extend and generalize previous approaches for estimating distinct count of events and joint events (i.e., intersection and more generally t-out-of-n cardinalities). Finally, we evaluate expirementally our approach and compare it to previous ones on real datasets.

Keywords

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