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Jingyuan Zhang

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#machine learning Preprint Oct 2026

Harnessing LLMs as Agents: What Does It Cost?

Language-model agents increasingly rely on harnesses that manage bounded context, persistent memory, tools, verification, and repeated execution, yet existing notions of model capability do not quantify the computational resources these mechanisms consume. We introduce the Language Model Agent Machine (LAM), a resource...

Ze-Lin Zhao, Xin-Yu Guo, Jing-Yuan Zhang et al. · 0 citations
#natural language process... Preprint Sep 2026

HarnessDev: Can LLMs Create and Evolve Their Own Agent Harness?

It is found that generated harnesses remain substantially behind mature human-engineered references on code and on search and research, while matching or exceeding the selected references on writing and machine-learning experimentation, with large variation in execution cost.

Yu-Hao Wu, Jing-Yuan Zhang, Jia-Jun Shi et al. · 8 citations
#natural language process... Preprint Aug 2026

Aspire: Can Models Self-Evolve from Vague Goals?

This work introduces ASPIRE, a benchmark for vague-goal-driven self-evolution and shows that vague goals redirect search effort toward goal interpretation, and evaluates the resulting systems on a hidden, expert-authored set of 520 items spanning six goals.

Yu-Hao Wu, Jingyuan Zhang, Jia-Jun Shi et al. · 0 citations
#natural language process... Preprint Aug 2026

S3Gym: Can LLMs Turn Self-Testing and Self-Judging into Self-Improvement?

These findings show that recognizing successful actions is insufficient; agents must also transform feedback into executable and transferable policies, and provide a unified framework for diagnosing this process and identifying the bottlenecks that prevent agents from translating interaction experience into reliable se...

Jia-Jun Shi, Siyang Tao, Yu-Hao Wu et al. · 2 citations
#machine learning Preprint Jul 2026

LP-SFT: Local-Preserving Supervised Fine-Tuning via Multimodal Entropy Structure

LP-SFT, a Local-Preserving Supervised Fine-Tuning objective designed to explicitly protect this inherent entropy structure, improves overall performance over vanilla SFT and recent SFT-enhancement baselines, suggesting that local preservation helps mitigate capability degradation without collapsing sampling-accessible...

Yueyang Wang, Baolong Bi, Shuo Lu et al. · 0 citations

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