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Yi-Xun Wei

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#artificial intelligence Preprint Oct 2026

DeFA: Dependency-Guided Failure Attribution for LLM Agents

Errors in LLM agent executions and their visible consequences can be separated by many steps, making decisive-error localization a matter of understanding both step content and step dependencies. We introduce DeFA, a dependency-guided framework for agent failure attribution. DeFA first combines protocol relations and s...

Bo Deng, Xin-Lei Zheng, Yi-Xun Wei et al. · 0 citations
#artificial intelligence Preprint Sep 2026

KITE: KV-Invariant Transformer Expansion for Efficient Agentic LLM Scaling

Scaling a language model is not only a question of final quality: the architectural choice determines how much computation is spent during training, prompt processing, and autoregressive decoding to achieve certain model quality. An ideal model architecture should lower all above computation costs to facilitate scaling...

Zhi-Heng Hu, Yi-Xun Wei, Jian Zhou et al. · 0 citations

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