Author

Zhihua Wei

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#artificial intelligence Preprint Sep 2026

Authorization Closure Graph: Minimal Repair for LLM Agents with Evolving User Instructions

Tool-using large language model (LLM) agents increasingly perform state-changing actions that require user authorization. Yet existing approaches do not provide a principled mechanism for selectively updating prior authorization when only part of an instruction changes. To this end, we propose an Authorization-Closure-...

Qing-Zhuo Wang, Cai-Yi Wang, Jing-Lu Meng et al. · 0 citations

#artificial intelligence Preprint Sep 2026

AlphaDiverse: Post-Training Local Quantitative Research Agents for Diverse Exploration in Alpha Factor Mining

Experiments across four Chinese stock universes show that AlphaDiverse can combine competitive prediction with broader exploration, and let the research system generate complementary plan portfolios and vary research environments across loops to collect diverse research paths.

Qing-Zhuo Wang, Zi-Kun Wei, Zhi-Hua Wei et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Evaluating and Explaining Prompt Sensitivity of LLMs Using Interactions

Interactions are introduced as a fine-grained tool to analyze prompt sensitivity of LLMs and it is discovered that subtle changes to prompts can trigger severe instability in interactions, even when the outputs of the LLM remain the same.

Ruiyang Qin, Qingzhuo Wang, Tian Wang et al. · 2 citations · ⚡1