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publications

Online Statistical Inference for Stochastic Optimization via Kiefer-Wolfowitz Methods

Published in Journal of the American Statistical Association, 2023

Statistical inference in gradient free methods.

Recommended citation: Chen, Xi, Zehua Lai, He Li, and Yichen Zhang. "Online Statistical Inference for Stochastic Optimization via Kiefer-Wolfowitz Methods." Journal of the American Statistical Association,(2023),https://doi.org/10.1080/01621459.2023.2296703. https://doi.org/10.1080/01621459.2023.2296703

Stochastic Steffensen Method

Published in Computational Optimization and Applications, 2024

A stochastic generalization of Steffensen method.

Recommended citation: Minda Zhao, Zehua Lai, and Lek-Heng Lim. "Stochastic Steffensen Method." Computational Optimization and Applications, (2024), https://doi.org/10.1007/s10589-024-00583-7. https://doi.org/10.1007/s10589-024-00583-7

talks

teaching

Teaching in Uchicago

graduate course, University of Chicago, 2019

Spring 2022, STAT 28000 Optimization, Teaching Assistant

Teaching in UTAustin

graduate course, University of Texas at Austin, 2023

Spring 2024, Probability I 53860, Instructor