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Han-Zhang Qin

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Jul 2026

Best-Arm Identification with Generative Proxy

It is proved that PROBE is $\delta$-PAC and attains the known-correlation oracle sample complexity up to a constant multiplicative factor and a constant additive calibration cost and the guarantee extends to the $(\epsilon,\delta)$-PAC setting under minimal changes to the algorithm.

Tianyi Ma, Han-Zhang Qin, Ruihao Zhu et al. · 1 citation
Jul 2026

EXPRESS: Tackling Decision Dependency in Contextual Stochastic Optimization

It is established that CGD converges to a neighborhood of the global optimum when the loss function exhibits sufficient strong convexity, and the derived bounds reveal a key insight: the strength of convexity in the loss function can compensate for the uncertainty introduced by decision-dependent effects.

Wenxuan Liu, Xiangting Liu, Maoqi Liu et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Admission Without Answers: Label-Free Certification and Experience Learning for LLM-Based Optimization Modeling

To the authors' knowledge, AdmitOR is the first label-free admission mechanism designed around an explicitly calibrated false-discovery target, and the transfer failure identifies a necessary condition for extending it to wild streams.

Junbo Jacob Lian, Hui-Ling Chen, Hanzhang Qin et al. · 0 citations

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