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Monday, October 14, 2024
10:00 AM - 11:00 AM
CNLS Conference Room (TA-3, Bldg 1690)

Seminar

Applications of Machine Learning in Solving and Explaining Optimization Models

Can Li
Purdue University

This talk is structured into two parts. The first part discusses the application of machine learning to enhance optimization algorithms. Combinatorial optimization and global optimization are established fields within operations research and computer science. Recently, there has been a marked increase in interest towards leveraging machine learning as a novel strategy for addressing combinatorial problems, either by serving as direct solvers or by improving the efficacy of exact solvers. We will present a new technique for solving AC optimal power flow problems with machine learning, ensuring the satisfaction of safety-critical constraints.The second part introduces OptiChat, a chatbot powered by large language models, designed to explain optimization problems. A significant obstacle to the practical deployment of optimization models is the challenge associated with helping practitioners comprehend and interpret these models. OptiChat is capable of performing a range of tasks, including diagnosing infeasibilities, conducting sensitivity analyses, providing counterfactual explanations, and responding to general inquiries from users.

Host: Saif R. Kazi (T-5), Harsha Nagarajan (T-5)