Author

Yue-Peng Yang

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Preprint Oct 2026

Graph-monotone entrywise guarantees for MLE and Rank Centrality on general comparison graphs

Pairwise comparisons are widely used to infer latent scores and identify top-ranked items. Although sharp statistical guarantees are available under uniform sampling, real data often induce irregular comparison graphs with heterogeneous observation counts across pairs. In this paper, we study an arbitrary fixed compari...

Yue-Peng Yang, Cong Ma · 0 citations

Preprint Aug 2026

Robust Average-Reward Markov Decision Processes: Minimax-Optimal Learning via Plug-in Reductions

This work studies how many samples are necessary and sufficient to learn an $\varepsilon$-optimal robust policy under the average-reward criterion and achieves these rates using reduction-based plug-in procedures that select the reduction---nominal or robust---and its discount factor.

Yue-Peng Yang, Yuxin Chen, Yuejie Chi · 0 citations