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Hong-Xin Wei

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#machine learning Preprint Sep 2026

Scheduling Recursive Reasoning in Looped Transformers

Recurrent reasoning models have attracted growing attention for scaling test-time computation, typically by iteratively refining latent states with shared parameters. However, these models apply each learned update with a fixed unit scale, which can be conservative when updates make persistent progress and overly aggre...

Bo-Yuan Wang, Cheng-Yao Yu, Jia-Xi Ren et al. · 0 citations
#machine learning Preprint Sep 2026

On the Pitfalls of Verbalized Confidence Priors for Calibrating Large Reasoning Models

Large reasoning models (LRMs) often suffer from overconfidence when expressing their uncertainty. Confidence-aware reinforcement learning (RL) offers a promising way to optimize calibration. However, it relies on on-policy rollouts and is thus constrained by the model's pre-RL confidence distribution, which we term con...

Shuo-Yuan Wang, Bei-Er Luo, Hao Zeng et al. · 0 citations
#machine learning Preprint Sep 2026

Occupancy-based Quantile Risk Control

Occupancy-based Quantile Risk Control (OQRC), a novel method that provides tight risk control bounds with finite-sample validity and establishes a finite-sample guarantee showing that OQRC yields tight risk control bounds that converge to the optimal bounds at a provable rate of $\mathcal{O}_ p(n^{-1/2})$.

Zi-Hao Shi, Hua-Jun Xi, Bing-Yi Jing et al. · 0 citations
Preprint Aug 2026

Tail-Aware Top-$k$ On-Policy Distillation

Tail-Aware Top-$k$ OPD is proposed, a novel distillation method that restores the missing tail probability signal and better aligns the student's next-token distribution with the teacher's, preventing the increase in tail probability and entropy caused by top-$k$ normalization.

Huipeng Huang, Hong-Xin Wei · 1 citation

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