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Yu-Jiong Shen

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#artificial intelligence Preprint Oct 2026

QREF: Improving DeepSearch Agents by Aligning Search with Reasoning via Query Refinement and Evidence Filtering

QREF, a plug-and-play Query Refiner and Evidence Filter that rewrites search queries according to the current reasoning intent while ensuring complementary coverage across each search batch, improves the performance of DeepSearch agents across four challenging benchmarks.

Yu-Jian Chen, Yu-Hui Wang, Jun-Zhe Wang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

ExplorationBench: Measuring AI Systems'Exploration in Verifiable Alien Worlds

ExplorationBench turns the wicked problem of evaluating scientific exploration into a concrete and tractable framework built on verifiable Alien Worlds, and finds that the strongest systems can acquire and apply unfamiliar rules, while performance varies substantially across trajectories and continued exploration can s...

Ming Zhang, Zhen Xiang, Pei-Zhong Gao et al. · 0 citations
Preprint Aug 2026

A Token-Level Analysis of Sampled-Token Reverse-KL On-Policy Distillation

A gradient-level characterization of reverse-KL OPD trained with the K2 estimator, with Surprise-aware Reweighting (SuRe), a detached, bounded weighting rule that further amplifies this existing allocation.

Bing Shao, Jia-Zheng Zhang, Long Ma et al. · 8 citations

JFTA-Bench: Evaluate LLM's Ability of Tracking and Analyzing Malfunctions Using Fault Trees

A novel textual representation of fault trees is proposed, and a benchmark for multi-turn dialogue systems that emphasizes robust interaction in complex environments is constructed, evaluating a model's ability to assist in malfunction localization.

Yuhui Wang, Zhi-Xiong Yang, Ming Zhang et al. · 0 citations
#natural language process... Preprint Aug 2026

Agents in the Large: Perception-Centered Architecture for Persistent Agents

Pera describes a persistent agent organized around perception and control components that continually perceive service-relevant signals from episodic task executions, internal context, and changes in the surrounding environment, and use these signals to construct lifecycle tasks.

Shi-Han Dou, Haoxiang Jia, Shichun Liu et al. · 1 citation

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