arXiv Machine Learning By Minsang Kim, Seungjun Baek

MoEZip: Routing-Aware KV Cache Compression for Sparse Mixture-of-Experts LLMs

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MoEZip is a routing‑aware key‑value (KV) cache compression technique designed for sparse Mixture‑of‑Experts (MoE) language models. It introduces a Fisher‑information‑based metric to assess how sensitive expert routing is to cache perturbations, and combines this with attention weights to score contexts for eviction. Experiments demonstrate that, even with only 10% of the KV cache retained, MoEZip outperforms state‑of‑the‑art baselines by significant margins on LongBench and RULER benchmarks.

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arXiv Machine Learning
Aug 27

Ban&Pick: Enhancing Performance and Efficiency of MoE-LLMs via Smarter Routing

The paper introduces Ban&Pick, a post‑training, plug‑and‑play routing strategy for Sparse Mixture‑of‑Experts large language models. It identifies and reinforces a small group of highly influential experts while dynamically pruning redundant ones, leading to accuracy gains across math, code, and reasoning benchmarks. Experiments on DeepSeek and Qwen3 show notable performance improvements and a 1.25× inference speedup without retraining or architectural changes.

By Yuanteng Chen, Peisong Wang, Yuantian Shao, Nanxin Zeng, Chang Xu, Jian Cheng