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Tuesday, June 06, 2023
11:00 AM - 12:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Seminar

Global optimization with integers: model-based and data-driven approaches

Nick Sahinidis
H. Milton Stewart School of Industrial & Systems Engineering and School of Chemical & Biomolecular Engineering; Georgia Institute of Technology

We present recent methodological developments in the context of three closely related computational optimization projects:The BARON project for algebraic optimization through a spatial branch-and-bound algorithm that exploits various convexification techniques.The ALAMO project that relies on algebraic global optimization (BARON) to build simple models from data while enforcing shape constraints.The BAM project for data-driven optimization through the integration of sampling, partitioning, and global optimization (BARON) of local algebraic surrogates constructed from data (ALAMO).We discuss connections between the three projects, report on the status of each project and their integration, and present computations on established benchmarks and applications. Bio:Nick Sahinidis is the Butler Family Chair and Professor in the H. Milton Stewart School of Industrial and Systems Engineering and the School of Chemical and Biomolecular Engineering at Georgia Tech. His current research activities are at the interface between computer science and operations research, with applications in various engineering and scientific areas, including: global optimization of mixed-integer nonlinear programs: theory, algorithms, and software; informatics problems in chemistry and biology; process and energy systems engineering. Sahinidis has served on the editorial boards of many leading journals and in various positions within AIChE (American Institute of Chemical Engineers). He has also served on numerous positions within INFORMS (Institute for Operations Research and the Management Sciences), including Chair of the INFORMS Optimization Society. He received an NSF CAREER award, the INFORMS Computing Society Prize, the MOS Beale-Orchard-Hays Prize, the Computing in Chemical Engineering Award, the Constantin Carathéodory Prize, and the National Award and Gold Medal from the Hellenic Operational Research Society. Sahinidis is a member of the U.S. National Academy of Engineering and a fellow of AIChE and INFORMS.

Host: Saif Kazi