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Resilience in Multi-Agent Consensus under Attacks

Time: Mon 2021-11-08 16.00 - 17.00

Location: Harry Nyquist and Zoom https://kth-se.zoom.us/j/4951295301

Language: English

Lecturer: Hideaki Ishii of Tokyo Institute of Technology

Prof. Hideaki Ishii from Tokyo Institute of Technology will give us a talk during our NetCon meeting on Monday (Nov 8) 16:00-17:00.
The seminar will be held in hybrid mode at Harry Nyquist meeting room and via Zoom (https://kth-se.zoom.us/j/4951295301).

Title: Resilience in Multi-Agent Consensus under Attacks

Abstract: In this talk, we present consensus problems for multi-agent systems

in hostile environments and their analyses on the resiliency against

cyber attacks. First, we discuss a class of data injection attacks by

focusing on the approach based on the so-called mean subsequence reduced

(MSR) algorithms, which originated in computer science. Agents equipped

with such algorithms will ignore their neighbors taking extreme state

values. Characterizations on the properties necessary for

network topologies and moreover a number of extensions with enhanced

resiliency will be discussed. As the second class of attacks, the effects

of denial-of-service (DoS) attacks will be examined in the context of

multi-agent consensus from the game theoretic viewpoint. The attacker

attempts to disable channels to disconnect the network while the

defender recovers some or all of the attacked channels. By imposing

energy constraints for both players, we characterize the optimal strategies

for the attacker and the defender in terms of edge connectivity

and the number of connected components of the graph.

Bio: Hideaki Ishii received the M.Eng. degree from Kyoto University

in 1998, and the Ph.D. degree from the University of Toronto

in 2002. He was a Postdoctoral Research Associate at the University

of Illinois at Urbana-Champaign from 2001 to 2004, and

a Research Associate at The University of Tokyo from 2004 to

2007. Currently, he is a Professor in the Department

of Computer Science, Tokyo Institute of Technology.

He was a Humboldt Research Fellow at the University of Stuttgart

in 2014-2015. He has also held visiting positions at the Politecnico

di Torino and CNR-IEIIT, Technical University of Berlin, and

City University of Hong Kong.

His research interests are in networked control systems,

multi-agent systems, distributed algorithms, and cyber security

of control systems.

Dr. Ishii has served as an Associate Editor for the IEEE Control

Systems Letters, and Mathematics of Control, Signals, and

Systems, and previously for Automatica, the IEEE Transactions

on Automatic Control, and the IEEE Transactions on Control of

Network Systems. He is the Chair of the IFAC Coordinating

Committee on Systems and Signals since 2017 and was the Chair

of the IFAC Technical Committee on Networked Systems from 2011

to 2017. He is the IPC Chair for the IFAC World Congress

2023 to be held in Yokohama, Japan. He received the IEEE Control

Systems Magazine Outstanding Paper Award in 2015. Dr. Ishii is

an IEEE Fellow.

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Meeting ID: 495 129 5301

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Last changed: Nov 08, 2021