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Author

Xuchao Zhang

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#artificial intelligence Preprint Sep 2026

FOCUS: Training-Free Decision-Preserving Context Compression for LLM Agents

LLM agents accumulate interaction histories that grow linearly with task length, causing quadratic inference cost scaling and performance degradation from attention dilution. Existing context-compression methods learn what to discard offline: by contrastively optimizing guidelines, distilling compressors, or training c...

Shantanu Dixit, Anson Bastos, Xu-Chao Zhang et al. · 0 citations
#machine learning Preprint Sep 2026

PSD: Pseudo Self-Distillation of Memory Representation Capabilities for LLM Agents

Pseudo Self-Distillation is presented, a framework that enables small language models to construct hierarchical memory representations by distilling behavior from a strong black-box oracle through a multi-stage training pipeline, with off-policy PSD achieving the strongest results across most conditions.

Pirzada Suhail, Meng-Lin Xia, Xu-Chao Zhang et al. · 0 citations

WebXSkill: Skill Learning for Autonomous Web Agents

This work introduces WebXSkill, a framework that bridges a grounding gap with executable skills, each pairing a parameterized action program with step-level natural-language guidance, and finds that better skill deployment mode depends on a model's plan and execution capability.

Zhaoyang Wang, Qianhui Wu, Xuchao Zhang et al. · 17 citations

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