Author

Ruifeng Xu

h-index 13 View on Semantic Scholar

We have 2 of 48 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

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

#artificial intelligence Preprint Aug 2026

Not All or None: Dynamic Construction of Target-aware Memory Graph for Conversational Stance Detection

A novel method that dynamically leverages target-related statements for conversational stance detection by employing a stepwise, entropy-guided backtracking mechanism to selectively activate memory from historical conversations and dynamically constructs a target-aware graph to model the stance relations among utteranc...

Yi-Fan Xiang, Bin Liang, Yu-Qi Huang et al. · 0 citations