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Yu-Yan Zhou

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#machine learning Preprint Oct 2026

LED: Improving Masked Diffusion Language Models by Lookahead Editing

This design introduces a rewritable proposal that uses additional compute to improve expressivity while keeping the simple mask-based transition schedule of MDMs, and fine-tune Qwen2.5-7B and Qwen3-8B to obtain LED-\texttt{7B} and LED-\texttt{8B}, respectively.

Yu-Yan Zhou, Ze-Yuan Yang, Yuxuan Song et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Generalized Proximal Policy Optimization: Unifying LLM RL Algorithms from the Perspective of Divergence

Reinforcement learning has become the foundational paradigm for enhancing the reasoning capabilities of LLMs. Yet the dominant approach, Proximal Policy Optimization (PPO), relies on a geometrically degenerate clipping proxy that cannot adapt its resistance to policy shifts, leading to premature clipping and degraded e...

Zhi-Cheng Cai, Xin-Yuan Guo, Han Wu et al. · 0 citations

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