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Minghao Chen

2 papers indexed

arxivcs.CLcs.LG2026-06-27

A3M: Adaptive, Adversarial and Multi-Objective Learning for Strategic Bidding in Repeated Auctions

Junhan Li, Yuxin Zhang, Haoran Wang, Minghao Chen

Learning to bid in repeated multi-unit auctions with bandit feedback poses a fundamental challenge. Existing methods often rely on rigid explore-then-exploit schedules, assume stationary adversaries, and optimize solely for bidder utility, thereby limiting adaptability and strate…

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arxivstat.MLcs.AIcs.LGeess.SYstat.ME2026-06-25

XMSE-Aware Adaptive Empirical Bayes Estimation

Minghao Chen, Jiale Zheng

Empirical Bayes (EB) estimators can match the first-order asymptotic risk of maximum likelihood (ML) while behaving very differently at second order: recent excess mean squared error (XMSE) analysis shows that kernel-based EB estimation may be worse than ML when the kernel is poo…

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