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Changxiao Cai

Transfer Learning for Contextual Multi-armed Bandits

Nov 22, 2022
Changxiao Cai, T. Tony Cai, Hongzhe Li

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Minimax Estimation of Linear Functions of Eigenvectors in the Face of Small Eigen-Gaps

Apr 07, 2021
Gen Li, Changxiao Cai, Yuantao Gu, H. Vincent Poor, Yuxin Chen

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Is Q-Learning Minimax Optimal? A Tight Sample Complexity Analysis

Mar 16, 2021
Gen Li, Changxiao Cai, Yuxin Chen, Yuantao Gu, Yuting Wei, Yuejie Chi

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* v2 added a matching lower bound, and removed the finite-horizon setting for brevity

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Uncertainty quantification for nonconvex tensor completion: Confidence intervals, heteroscedasticity and optimality

Jun 15, 2020
Changxiao Cai, H. Vincent Poor, Yuxin Chen

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* Accepted in part to ICML 2020

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Nonconvex Low-Rank Symmetric Tensor Completion from Noisy Data

Nov 11, 2019
Changxiao Cai, Gen Li, H. Vincent Poor, Yuxin Chen

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