Resiliency in Multi-Agent Consensus under Adversarial Attacks

Abstract: This talk will provide an overview on the recent research on multi-agent systems operating in hostile environments. In the context of consensus problems, we will focus on the influence of misbehaving agents capable to inject false data in their transmissions and how to mitigate such cyber attacks by the approach of the so-called mean subsequence reduced algorithms and their variants. Agents equipped with such algorithms will ignore their neighbors taking outlying state values. We will see that characterizations on the properties necessary for network topologies can be established, and moreover that network resiliency can be enhanced when more communication and computational resources are available. This approach originates in the area of distributed algorithms in computer science, but recent studies in systems control have brought notable advances. We will further discuss extensions of such algorithms to problems of averaging, parameter estimation, and clock synchronization in wireless sensor networks. Speaker(s): Hideaki, Agenda: Abstract: This talk will provide an overview on the recent research on multi-agent systems operating in hostile environments. In the context of consensus problems, we will focus on the influence of misbehaving agents capable to inject false data in their transmissions and how to mitigate such cyber attacks by the approach of the so-called mean subsequence reduced algorithms and their variants. Agents equipped with such algorithms will ignore their neighbors taking outlying state values. We will see that characterizations on the properties necessary for network topologies can be established, and moreover that network resiliency can be enhanced when more communication and computational resources are available. This approach originates in the area of distributed algorithms in computer science, but recent studies in systems control have brought notable advances. We will further discuss extensions of such algorithms to problems of averaging, parameter estimation, and clock synchronization in wireless sensor networks. Room: SF B560 , 172 St. George St.,, Toronto, Ontario, Canada, M5R 0A3