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Author

Yu Wang

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#artificial intelligence Preprint Oct 2026

VICO: Visual Environments Co-Evolving for Vision-Language Model Reasoning

Reinforcement learning with verifiable rewards (RLVR) has become a standard recipe for post-training vision-language models (VLMs), but it typically assumes a static training environment. As the actor improves, fixed tasks drift out of its learning frontier: many become trivial, others remain unsolvable; and the learni...

Meng Lu, Li-Geng Zhu, Olivia C. Xiao et al. · 1 citation
#artificial intelligence Preprint Sep 2026

Direct Self-Evolving Optimization: Evolving LLMs without Challenger Training

Self-evolving language models improve by generating tasks and learning from their own feedback, but adapting the task generator often requires a separate challenger-training loop. Can we generate tasks adapted to the current solver without explicitly training a challenger? We introduce \textbf{D}irect Self-\textbf{E}vo...

Yu-Yang Deng, Yu Wang, Jia-Yun Wang · 0 citations
Jul 2026

Reward-Free Evolving Agents via Pairwise Validator

A pairwise validator is proposed: a frozen LLM that, given the parent and child candidate, returns a binary verdict on which is better, which mitigates the need for strict scale calibration.

Minghao Liu, Yu Wang, Jiayun Wang et al. · 0 citations

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