Events Calendar

Center of Autonomy and AI, Center for Cyber-Physical Systems and the Internet of Things, and Ming Hsieh Institute Seminar Series

Speaker: Xenofon Koutsoukos, Department of Computer Science at Vanderbilt University

Talk Title: Resilient Distributed Consensus, Optimization, and Learning in Networked Cyber-Physical Systems

Series: Center for Cyber-Physical Systems and Internet of Things

Abstract: Distributed consensus, optimization, and learning algorithms are increasingly used in networked cyber-physical systems but they are prone to Byzantine attacks. In this talk, we will present distributed algorithms for resilient aggregation in high-dimensional problems. The first approach is based on the notion of centerpoint, which is an extension of the median in higher dimensions. Centerpoint is used in a resilient distributed stochastic gradient descent algorithm in a cooperative network and evaluated using examples of target pursuit in multi-robot systems. The second approach is based on adaptive weight assignment and is used for resilient distributed multi-task learning and distributed reinforcement learning. Our results show better learning performance than the non-cooperative case and resilience in the presence of Byzantine agents.

Biography: Xenofon Koutsoukos is the Chair of the Department of Computer Science at Vanderbilt University. He is a Professor of Computer Science, Computer Engineering, and Electrical Engineering and a Senior Research Scientist with the Institute for Software Integrated Systems. His research is in the area of cyber-physical systems with emphasis on learning-enabled systems, security and resilience, control and decision-making, diagnosis and fault tolerance, formal methods, and adaptive resource management. Prof. Koutsoukos was the recipient of the NSF Career Award in 2004, the Excellence in Teaching Award in 2009 from the Vanderbilt University School of Engineering, and the 2011 NASA Aeronautics Research Mission Directorate (ARMD) Associate Administrator (AA) Award in Technology and Innovation. He is a Fellow of the IEEE.

Host: Hosts: Pierluigi Nuzzo and Paul Bogdan

Webcast: https://usc.zoom.us/webinar/register/WN_p5OEJlPxQlakO4hqovuGEQ

Location: Online

WebCast Link: https://usc.zoom.us/webinar/register/WN_p5OEJlPxQlakO4hqovuGEQ

Audiences: Everyone Is Invited

Contact: Talyia White