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Yu-Xin Zuo

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#artificial intelligence Preprint Sep 2026

Diffusion Reward Models

Reward models underpin the alignment of large language models, yet the dominant designs reduce each prompt--response pair to a point estimate or to a distribution from a fixed parametric family. This is at odds with human preference, which is inherently multimodal: the same response can be reasonably judged in many way...

Xiang-Yang Wang, Bing-Xiang He, Ze-Yuan Liu et al. · 0 citations
Jul 2026

Frontis-MA1: Training an AI4AI Model towards Recursive Self-Improvement in Machine Learning Engineering

Recursive self-improvement (RSI) requires AI systems that improve the process of building AI (i.e., AI4AI); machine learning engineering (MLE) offers a concrete, executable testbed for studying this capability. We introduce OpenMLE, an open full-stack system for RSI research in MLE, spanning verifiable task environment...

Junlin Yang, Che Jiang, Yu Fu et al. · 3 citations
#artificial intelligence Preprint Sep 2026

Rethinking On-Policy Distillation of Large Language Models II: One Training Example

On-policy distillation (OPD) combines student-generated rollouts with dense token-level supervision from a teacher. Existing work has mainly studied its algorithmic behavior, leaving the role of training data unclear. We examine this role at the data-minimal limit by training on a single query. One-shot OPD keeps impro...

Zi-Xuan Fu, Bing-Xiang He, Yu-Xin Zuo et al. · 12 citations · ⚡1
#artificial intelligence Preprint Sep 2026

StudyBench: Can Self-Evolution Squeeze Textbooks for Olympiad Capability?

StudyBench is introduced, a controlled physics benchmark that directly measures how efficiently a self-evolution method converts training material into capability, and turns self-evolution progress from an open-ended pursuit into a measurable target for future research.

Ying-Hao Chen, Zi-Xi Chen, Bingxiang He et al. · 0 citations

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