- This event has passed.
LANS Seminar
May 4, 2022 @ 10:30 - 11:30 CDT
Seminar Title: Targeted Adaptive Design
Speaker: Marieme Ngom, Postdoctoral Appointee, ANL/MCS
Date/Time: May 4, 2022 / 10:30 am – 11:30 am
Location: See meeting URL on the cels-seminars website (requires Argonne login)
Host: Tanwi Mallick
Description: We present Targeted Adaptive Design (TAD), a new data-driven method that aims at efficiently locating optimal control parameters that would yield a target output design in a multi-dimensional input/multi-dimensional output environment. At each stage of the algorithm, a Vector-Valued Gaussian Process (VVGP) surrogate is placed on the unknown experimental response, and N new sample locations and target control parameters are optimized to maximize a novel acquisition function based on the expected predictive log-likelihood of the target parameters at the target location, conditioned on the acquired data and the N latent future sample. A dynamic model validation based on chi-squared statistics is also integrated at each stage of the algorithm. Our method incorporates robust Uncertainty Quantification (UQ) from the ground up and is well-suited for design problems arising from advanced manufacturing. We showcase the performance of the algorithm on a simulated design problem and compare it to algorithms based on grid and random sampling data acquisition strategies.
Please note that the meeting URL for this event can be seen on the cels-seminars website, which requires an Argonne login.