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Serena Li

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#artificial intelligence Review Oct 2026

TreeFlex: Agents Navigating Their Own Search Trees

A ReAct-style agent accumulates observations, intermediate results, and failed attempts in a single context. As this context grows, stale and off-path information consumes its limited capacity and obscures relevant evidence, making focused reasoning increasingly difficult. We introduce TreeFlex, a framework in which th...

Dong-Zhuo Li, Fang-Zhou Cheng, Wei-Wei Li et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Verify Less, Evolve More: Training Idea-Level Critics for Verification-Efficient ML Evolving Agents

As large language models become more powerful, self-evolving agents are able to tackle challenging tasks including AI for machine learning (AI4ML). In AI4ML, while empirical verification is available, it often requires computationally costly model training and evaluation, limiting the speed and scale of agent evolution...

Jiamu Bai, Li-Zhu Zhang, Xin Yu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

MLToolBench: Learning Tool-Augmented Agents for Machine Learning Development

This work introduces ToolMLBench, a suite of executable tools for data inspection, code verification, and experiment diagnosis, together with an SFT and RL pipeline for learning their use, and measures how privileged context changes the likelihood of a sampled tool action and uses this difference as a turn-level reward...

Xin Yu, Li-Zhu Zhang, Jiamu Bai et al. · 0 citations
Jul 2026

Remember When It Matters: Proactive Memory Agent for Long-Horizon Agents

Ablations show that selective intervention outperforms passive bank exposure, always-on injection, advisor-only guidance, advisor-only guidance, and general retrieval, and general retrieval and that selective intervention outperforms passive bank exposure, always-on injection, advisor-only guidance, and general retriev...

Yi-Fan Wu, Lizhu Zhang, Yu-Hang Zhou et al. · 2 citations

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