Author

Yi Xie

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#machine learning Preprint Oct 2026

Beyond Success Rate: Interventional Evaluation of Memory in Vision-Language-Action Systems

When we say that a robot uses memory, does that memory actually play a role? Success-rate ablations alone cannot establish the use of task-relevant facts: they change information and computation together, while aggregate rates can hide offsetting gains and losses. We propose an Interventional Memory Evaluation Protocol...

Ke-Yuan Luo, Yi Xie, Wan-Yun Ling et al. · 0 citations

#machine learning Preprint Sep 2026

Bayes-Sufficient Compression Is Not Enough: How Does Communication Help Multi-Agent Systems?

Multi-agent LLM systems pair a sender with broad context and an executor with a limited local view. We study when a short message improves the executor's next decision, when raw context is preferable, and when a stronger sender helps. Our framework, \emph{receiver-relative bounded coordination}, expresses message utili...

Yi Xie, Zhan-Ke Zhou, Yi-Sheng Fan et al. · 0 citations