Privacy Verification in POMDPs via Barrier Certificates

Privacy Verification in POMDPs via Barrier Certificates
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通过 Barrier 证书在 POMDP 中进行隐私验证

DOI:
10.1109/cdc.2018.8619061
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发表时间:
2018
期刊:
2018 IEEE Conference on Decision and Control (CDC)
影响因子:
--
通讯作者:
U. Topcu
U. Topcu
中科院分区:
--
文献类型:
--
作者:
M. Ahmadi;B. Wu;Hai Lin;U. Topcu

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隐私是在共享网络上运行的网络物理系统中日益关注的问题。在本文中,我们提出了一种基于屏障证书的马尔可夫决策过程(MDP)和部分可观察马尔可夫决策过程(POMDP)建模的网络物理系统的隐私验证方法。为此,我们考虑一个基于不透明的隐私概念,其特征在于系统状态的信念。我们发现,信念更新方程可以表示为离散时间切换系统,我们提出了一组条件的隐私验证的屏障证书。我们进一步证明了,对于MDP和POMDP,隐私验证可以通过分别求解一组半定程序和平方和程序来计算实现。该方法通过应用于库存管理系统的隐私验证来说明。
Privacy is an increasing concern in cyber-physical systems that operates over a shared network. In this paper, we propose a method for privacy verification of cyber-physical systems modeled by Markov decision processes (MDPs) and partially-observable Markov decision processes (POMDPs) based on barrier certificates. To this end, we consider an opacity-based notion of privacy, which is characterized by the beliefs in system states. We show that the belief update equations can be represented as discrete-time switched systems, for which we propose a set of conditions for privacy verification in terms of barrier certificates. We further demonstrate that, for MDPs and for POMDPs, privacy verification can be computationally implemented by solving a set of semi-definite programs and sum-of-squares programs, respectively. The method is illustrated by an application to privacy verification of an inventory management system.
DOI: 10.1109/cdc.2016.7799088
发表时间: 2016-12
期刊: 2016 IEEE 55th Conference on Decision and Control (CDC)
影响因子: --
作者:
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通讯作者: M. Ahmadi;Andreas W. K. Harris;A. Papachristodoulou
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DOI: 10.1016/j.sysconle.2017.08.002
发表时间: 2017
影响因子: 2.6
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DOI: 10.1109/lcsys.2017.2710943
发表时间: 2017-10-01
影响因子: 3
作者:
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