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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Yu-Quan Zhang

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Book Open access Jul 2026

UBEP: Re-architecting Expert Parallelism Communication Library for Production Superpods

UBEP (Unified-Bus Expert Parallelism), a production-ready communication library that rethinks MoE's All-to-All primitives for modern superpod architectures, and reduces All-to-All latency by up to 52% and MoE inference Time Per Output Token (TPOT) by up to 11.1%.

Yi-Peng Liu, Chang Liu, Sitan Shen et al. · 0 citations
Preprint Aug 2026

SkillShapley: Boundary-Adaptive Shapley Valuation for Skill Step Attribution in LLM Agents

The proposed SkillShapley operates in two phases, motivated by key empirical insights, i.e., discretized benchmark rewards that create sharp performance cliffs, and step interactions that are largely additive rather than synergistic.

Chang Liu, Yu-Quan Zhang, Yiman Zhong et al. · 0 citations

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