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Differential Privacy in Parallel Distributed Bayesian Detections
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-2276-2079
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-0036-9049
2014 (English)In: Proceedings of the 17th International Conference on Information Fusion (FUSION), IEEE conference proceedings, 2014, 1-7 p.Conference paper, Published paper (Refereed)
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Text
Abstract [en]

In this paper, the differential privacy problem in parallel distributed detections is studied in the Bayesian formulation. The privacy risk is evaluated by the minimum detection cost for the fusion node to infer the private random phenomenon. Different from the privacy-unconstrained distributed Bayesian detection problem, the optimal operation point of a remote decision maker can be on the boundary of the privacy-unconstrained operation region or in the intersection of privacy constraint hyperplanes. Therefore, for a remote decision maker in the optimal privacy-constrained distributed detection design, it is sufficient to consider a deterministic linear likelihood combination test or a randomized decision strategy of two linear likelihood combination tests which achieves the optimal operation point in each case. Such an insight indicates that the existing algorithm can be reused by incorporating the privacy constraint. The trade-off between detection and privacy metrics will be illustrated in a numerical example.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2014. 1-7 p.
Keyword [en]
Bayesian formulation; Differential privacies; Distributed Bayesian detection; Distributed detection; Operation regions; Optimal operation point; Privacy constraints; Randomized decisions
National Category
Computational Mathematics Communication Systems Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-179186ISI: 000363896100200Scopus ID: 2-s2.0-84910662593ISBN: 978-849012355-3 (print)OAI: oai:DiVA.org:kth-179186DiVA: diva2:881770
Conference
17th International Conference on Information Fusion (FUSION), Salamanca, Spain, Jul. 7-10, 2014
Note

QC 20151211. QC 20160209

Available from: 2015-12-11 Created: 2015-12-11 Last updated: 2016-02-09Bibliographically approved

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