Author

Man-Hin Poon

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Preprint Oct 2026

Improved E-Value Thresholds with Applications to Multiple and Sequential Testing

E-values provide a flexible framework for statistical inference, but the universal threshold $1/\alpha$ can be conservative when the null distribution has additional structure. We study how structural restrictions limit the worst-case concentration underlying Markov's inequality, using a nondecreasing density model to...

Jia-Yi Shen, Hou-Zhen Liu, Qi-Run Zeng et al. · 0 citations

#artificial intelligence Review Oct 2026

Beyond Reward Suppression: Near-Optimal Offline Attacks on Warm-Start Bandits with Bounded Rewards

Adversarial attacks on bandits aim to mislead a learner toward a target arm while keeping the attack cost small. Existing attacks typically achieve this by suppressing non-target arms. In practice, however, manipulation such as fake reviews often directly promotes the target item. We study this gap through bounded offl...

Qi-Run Zeng, Man-Hin Poon, Xiang-Xiang Dai et al. · 0 citations