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Zhi-Jiang Guo

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#natural language process... Preprint Sep 2026

RESKILL: Explicit Failure Attribution and Structured Repair for Interactive Language Agents

Language agents increasingly rely on reusable skills, but post-failure repair is often handled by opaque one-shot reflection: a model generates a skill patch without explicitly maintaining how failure explanations relate to candidate repairs or how unsuccessful retests should influence later edits. We introduce RESKILL...

Meng-Yi Deng, Xin Li, Du-Yi Pan et al. · 0 citations
#natural language process... Preprint Sep 2026

SAS: Simple Attention Sparsification via End-to-End Optimization of Context Ranking

Across reasoning, long-context understanding, and agentic tasks, SAS consistently outperforms trainable sparse attention baselines across attention budgets, with especially large gains under tight budgets, demonstrating more effective context ranking for downstream tasks.

Zhi-Wei Li, Lei Zhu, Hao Gu et al. · 0 citations

Attention Amnesia in Hybrid LLMs: When CoT Fine-Tuning Breaks Long-Range Recall, and How to Fix It

QK-Restore consistently restores long-context capability at zero training cost while preserving reasoning performance; for instance, on HypeNet-5B it improves S3@256K from $65.4\%$ to $76.4\%$ while maintaining strong reasoning performance.

Xinyu Zhou, Boyuan Zhu, Yi Xu et al. · 0 citations

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