Statistical verification and differential privacy in cyber-physical systems

This thesis studies the statistical verification and differential privacy in Cyber-Physical Systems. The first part focuses on the statistical verification of stochastic hybrid system, a class of formal models for Cyber-Physical Systems. Model reduction techniques are performed on both Discrete-Time and Continuous-Time Stochastic Hybrid Systems to reduce them to Discrete-Time Markov Chains and Continuous-Time Markov Chains, respectively; and statistical verification algorithms are proposed to verify Linear Inequality LTL and Metric Interval Temporal Logic on these discrete probabilistic models. In addition, the advantage of stratified sampling in verifying Probabilistic Computation Tree Logic on Labeled Discrete-Time Markov Chains is studied; this method can potentially be extended to other statistical verification algorithms to reduce computational costs. The second part focuses on the Differential Privacy in multi-agent systems that involve share information sharing to achieve overall control goals. A general formulation of the systems and a notion of Differential Privacy are proposed, and a trade-off between the Differential Privacy and the tracking performance of the systems is demonstrated. In addition, it is proved that there is a trade-off between Differential Privacy and the entropy of the unbiased estimator of the private data, and an optimal algorithm to achieve the best trade-off is given.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2019

Author dc:creator

• Wang, Yu

Contributors dc:contributor

• Dullerud, Geir E.
• Mitra, Sayan
• West, Matthew
• Egerstedt, Magnus
• Viswanathan, Mahesh

• Model Reduction
• Markov Chains
• Temporal Logic
• Multi-Agent Systems
• Laplace Mechanisms

Statement dc:rights

• Copyright 2018 Yu Wang

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/102388

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/102388