Search Results for author: Fengxue Zhang

Found 4 papers, 0 papers with code

Constrained Bayesian Optimization with Adaptive Active Learning of Unknown Constraints

no code implementations12 Oct 2023 Fengxue Zhang, Zejie Zhu, Yuxin Chen

Optimizing objectives under constraints, where both the objectives and constraints are black box functions, is a common scenario in real-world applications such as scientific experimental design, design of medical therapies, and industrial process optimization.

Active Learning Bayesian Optimization +1

Learning Regions of Interest for Bayesian Optimization with Adaptive Level-Set Estimation

no code implementations25 Jul 2023 Fengxue Zhang, Jialin Song, James Bowden, Alexander Ladd, Yisong Yue, Thomas A. Desautels, Yuxin Chen

Our approach is easy to tune, and is able to focus on local region of the optimization space that can be tackled by existing BO methods.

Bayesian Optimization

Learning Representation for Bayesian Optimization with Collision-free Regularization

no code implementations16 Mar 2022 Fengxue Zhang, Brian Nord, Yuxin Chen

We show that even with proper network design, such learned representation often leads to collision in the latent space: two points with significantly different observations collide in the learned latent space, leading to degraded optimization performance.

Bayesian Optimization

Learning Collision-free Latent Space for Bayesian Optimization

no code implementations1 Jan 2021 Fengxue Zhang, Yair Altas, Louise Fan, Kaustubh Vinchure, Brian Nord, Yuxin Chen

To address this issue, we propose Collision-Free Latent Space Optimization (CoFLO), which employs a novel regularizer to reduce the collision in the learned latent space and encourage the mapping from the latent space to objective value to be Lipschitz continuous.

Bayesian Optimization Experimental Design

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