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Author

Bo-Wen Zuo

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#machine learning Preprint Oct 2026

Why On-Policy Distillation Sometimes Fails: Vanishing Learning Signals

On-policy distillation (OPD) enables effective capability transfer between language models, yet the mechanisms underlying its failures are not fully understood. Across code generation and mathematical reasoning, OPD with larger-scale teachers exhibits early loss plateaus, with an average final loss reduction of 25.1% a...

Lei Zhao, Qi-Chao Zhao, Bo-Wen Zuo et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Exploring More, Reasoning Better: Stepwise Risk-Sensitive GRPO for Diffusion Language Models

Diffusion large language models (dLLMs) generate text by denoising a sequence or successive blocks, allowing several tokens to be revealed in parallel. Reinforcement learning with verifiable rewards (RLVR) reuses terminal feedback across these decisions, even as their conditioning context changes. We propose stepwise r...

Yu Yue, Bo-Wen Zuo, David J. Crandall et al. · 0 citations
#artificial intelligence Preprint Sep 2026

UniEvo-VL: An On-policy Self-Distillation Training Recipe for Multimodal Model Self-improvement

Modern multimodal models bring generation and understanding into a single unified system, which enables them to provide and learn from their own feedback. Motivated by this unified capacity, we introduce UniEvo-VL, a self-evolving framework for multimodal models to learn from this constructive self-correction feedback...

Fang Wu, Dan-Lei Xing, Yan-Jie Huang et al. · 0 citations

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