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Privacy Preserving Multi-Agent Planning with Provable Guarantees

2018-10-31 15:47:12
Amos Beimel, Ronen I. Brafman

Abstract

In privacy-preserving multi-agent planning, a group of agents attempt to cooperatively solve a multi-agent planning problem while maintaining private their data and actions. Although much work was carried out in this area in past years, its theoretical foundations have not been fully worked out. Specifically, although algorithms with precise privacy guarantees exist~\cite{Yao82b,GMW87}, even their most efficient implementations are not fast enough on realistic instances, whereas for practical algorithms no meaningful privacy guarantees exist. \smafs~\cite{Brafman15}, a variant of the multi-agent forward search algorithm~\cite{nissim2014distributed} is the only practical algorithm to attempt to offer more precise guarantees, but only in very limited settings and with proof sketches only. In this paper we formulate a precise notion of secure computation for search-based algorithms and prove that \smafs\ has this property in all domains. We also provide a proof of its completeness.

Abstract (translated)

URL

https://arxiv.org/abs/1810.13354

PDF

https://arxiv.org/pdf/1810.13354.pdf


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