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Author

Yichen Zhang

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#natural language process... Preprint Oct 2026

Self-Evolving Agents Can Repair Failures but Struggle to Generalize from Them

Cold-Start Failure-Only Evolution reveals that current self-evolving agents are better at repairing observed failures than building generalizable capabilities from failure, and suggests that current self-evolving agents are better at repairing observed failures than building generalizable capabilities from failure.

Weixiang Zhao, Yi-Chen Zhang, Yan-Yan Zhao et al. · 0 citations
#natural language process... Preprint Aug 2026

Write, Execute, Refine: From Skill Followers to Skill Optimizers via Reinforcement Learning from Execution Feedback

Expert-written natural language skills can improve tool-using agents, yet agent-authored skills perform 8-11 points worse than using no skill. This gap suggests that following procedural guidance and improving it from execution evidence are distinct capabilities. Inference time loops can repair skills but do not improv...

Kang Peng, Zhi-Wei Zhang, Yichen Zhang et al. · 1 citation

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