الباحثون

Xu Han

المنشورات 5

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Which Skill to Distill? SGUID: Selecting a Compact Skill Bank for Model-Skill Co-Evolution

Yuhan Liu, Xiyao Ma, Zhongkai Sun وآخرون · 2026

Skills, reusable procedural guidance added at inference, can substantially improve LLM downstream performance (Li et al., 2026). Prior work retrieves skills from a bank by semantic relevance, then uses them as inference-time patches or for model distillation. The individual utility of each skill, however, is largely ne …

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Learning from Hetero Density for Cryo-EM Protein Reconstruction

Xu Han, Chaozhuo Li, Xiaowei Yuan وآخرون · 2026

Reconstructing protein structures from cryo-electron microscopy (cryo-EM) maps is essential for understanding macromolecular assemblies. Although learning-based methods have improved protein reconstruction, information from hetero components remains underused. Our analysis finds both false predictions and reference pro …

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PB-GRPO: Learning Socially Adaptive LLM Agents from Persona-Driven Simulation with Preference-Batched GRPO

Jingquan Wang, Jun Yin, Xu Han وآخرون · 2026

Building LLMs that behave well socially, not merely correctly, requires Building LLMs that behave well socially, not merely correctly, requires more than producing locally helpful responses. A socially competent agent must infer users' unstated goals, respect their preferences, and adapt as the conversation unfolds. Th …

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LoLBench: Evaluating Coding Agents with Long-Horizon Proposals on Large Software Systems

Yun Peng, Zihan Wu, Zeyang Zhuang وآخرون · 2026

Modern coding agents can deliver increasingly large repository-level changes, and recent benchmarks reflect this by emphasizing long-horizon tasks with large reference implementations. Many benchmarks evaluate coding agents' implementation capability to produce correct code edits from detailed specifications. However, …

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