Author

Xun Liu

h-index 2 View on Semantic Scholar

We have 2 of 7 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.

#artificial intelligence Preprint Oct 2026

Drafting Agents, Not Just Tokens: Speculative Recursive Self-Improvement for Agentic Systems

Speculative Recursive Self-Improvement (SpecRSI) is introduced, which drafts executable successor agents before their predecessors are fully evaluated, while requiring complete verification before adoption.

Xin Xu, Ke Cheng, Hao Wang et al. · 3 citations

Jul 2026

AgentAbstain: Do LLM Agents Know When Not to Act?

This work presents the first systematic evaluation framework for agentic abstention, and identifies failure modes such as post-hoc abstention, in which agents execute irreversible actions before recognizing abstention triggers.

Xun Liu, Y. Zhang, Vira Kasprova et al. · arXiv.org · 2 citations