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Related papers: Optimizing MoE Routers: Design, Implementation, an…

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A common assumption is that MoE routers primarily leverage semantic features for expert selection. However, our study challenges this notion by demonstrating that positional token information also plays a crucial role in routing decisions.…

Computation and Language · Computer Science 2025-04-08 Daniel Bershatsky , Ivan Oseledets

We present a novel approach called Mixture of Mixture of Expert (MoMoE) that combines the strengths of Mixture-of-Experts (MoE) architectures with collaborative multi-agent frameworks. By modifying the LLaMA 3.1 8B architecture to…

Computational Engineering, Finance, and Science · Computer Science 2025-11-19 Peng Shu , Junhao Chen , Zhengliang Liu , Hanqi Jiang , Yi Pan , Khanh Nhu Nguyen , Zihao Wu , Huaqin Zhao , Yiwei Li , Enze Shi , ShaoChen Xu

Sparse Mixture-of-Experts (MoE) architectures employ increasingly sophisticated routing mechanisms -- learned routers, multi-hop trajectories, token-dependent gating. We ask: does routing topology actually determine language modeling…

Artificial Intelligence · Computer Science 2026-04-17 Ivan Ternovtsii , Yurii Bilak

Mixture-of-Experts (MoE) models have emerged as a dominant paradigm for efficient LLM scaling, yet adapting them to non-English downstream tasks remains challenging. Existing fine-tuning approaches treat MoE models as monolithic learners,…

Computation and Language · Computer Science 2026-05-28 Guanzhi Deng , Kuan Wu , Haibo Wang , Shing Yin Wong , Sichun Luo , Linqi Song

The sparse Mixture-of-Experts (MoE) architecture is increasingly favored for scaling Large Language Models (LLMs) efficiently, but it depends on heterogeneous compute and memory resources. These factors jointly affect system Cost, Accuracy,…

The sparse Mixture-of-Experts (MoE) architecture is increasingly favored for scaling Large Language Models (LLMs) efficiently, but it depends on heterogeneous compute and memory resources. These factors jointly affect system Cost, Accuracy,…

Recent studies integrate Low-Rank Adaptation (LoRA) and Mixture-of-Experts (MoE) to further enhance the performance of parameter-efficient fine-tuning (PEFT) methods in Large Language Model (LLM) applications. Existing methods employ…

Computation and Language · Computer Science 2026-01-21 Jie Cao , Tianwei Lin , Bo Yuan , Rolan Yan , Hongyang He , Wenqiao Zhang , Juncheng Li , Dongping Zhang , Siliang Tang , Yueting Zhuang

The cosine router in Mixture of Experts (MoE) has recently emerged as an attractive alternative to the conventional linear router. Indeed, the cosine router demonstrates favorable performance in image and language tasks and exhibits better…

Machine Learning · Statistics 2025-03-06 Huy Nguyen , Pedram Akbarian , Trang Pham , Trang Nguyen , Shujian Zhang , Nhat Ho

Mixture-of-Experts (MoE) architecture offers enhanced efficiency for Large Language Models (LLMs) with modularized computation, yet its inherent sparsity poses significant hardware deployment challenges, including memory locality issues,…

Hardware Architecture · Computer Science 2026-03-10 Shuqing Luo , Ye Han , Pingzhi Li , Jiayin Qin , Jie Peng , Yang , Zhao , Yu , Cao , Tianlong Chen

Large language models (LLMs) have garnered unprecedented advancements across diverse fields, ranging from natural language processing to computer vision and beyond. The prowess of LLMs is underpinned by their substantial model size,…

Machine Learning · Computer Science 2025-04-10 Weilin Cai , Juyong Jiang , Fan Wang , Jing Tang , Sunghun Kim , Jiayi Huang

The Mixture of Experts (MoE) architecture enables the scaling of Large Language Models (LLMs) to trillions of parameters by activating a sparse subset of weights for each input, maintaining constant computational cost during inference.…

Machine Learning · Computer Science 2026-01-08 Shihao Ji , Zihui Song

Mixture-of-Experts (MoE) language models dramatically expand model capacity and achieve remarkable performance without increasing per-token compute. However, can MoEs surpass dense architectures under strictly equal resource constraints --…

Computation and Language · Computer Science 2026-05-19 Houyi Li , Ka Man Lo , Shijie Xuyang , Ziqi Wang , Wenzhen Zheng , Haocheng Zhang , Zhao Li , Shuigeng Zhou , Xiangyu Zhang , Daxin Jiang

The sparsely activated mixture-of-experts (MoE) transformer has become a common architecture for large language models (LLMs) due to its sparsity, which requires fewer computational demands while easily scaling the model size. In MoE…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-14 Wenxiang Lin , Xinglin Pan , Lin Zhang , Shaohuai Shi , Xuan Wang , Xiaowen Chu

The recent success of specialized Large Language Models (LLMs) in domains such as mathematical reasoning and coding has led to growing interest in methods for merging these expert LLMs into a unified Mixture-of-Experts (MoE) model, with the…

Computation and Language · Computer Science 2025-02-18 Yuhang Zhou , Giannis Karamanolakis , Victor Soto , Anna Rumshisky , Mayank Kulkarni , Furong Huang , Wei Ai , Jianhua Lu

The Mixture-of-Experts (MoE) technique can scale up the model size of Transformers with an affordable computational overhead. We point out that existing learning-to-route MoE methods suffer from the routing fluctuation issue, i.e., the…

Machine Learning · Computer Science 2022-04-19 Damai Dai , Li Dong , Shuming Ma , Bo Zheng , Zhifang Sui , Baobao Chang , Furu Wei

Sparse Mixture of Experts (MoE) large language models (LLMs) are gradually becoming the mainstream approach for ultra-large-scale models. Existing optimization efforts for MoE models have focused primarily on coarse-grained MoE…

Computation and Language · Computer Science 2025-05-07 Haoqi Yang , Luohe Shi , Qiwei Li , Zuchao Li , Ping Wang , Bo Du , Mengjia Shen , Hai Zhao

The Mixture of Experts (MoE) architecture is a cornerstone of modern state-of-the-art (SOTA) large language models (LLMs). MoE models facilitate scalability by enabling sparse parameter activation. However, traditional MoE architecture uses…

Computation and Language · Computer Science 2025-08-12 Haoyuan Wu , Haoxing Chen , Xiaodong Chen , Zhanchao Zhou , Tieyuan Chen , Yihong Zhuang , Guoshan Lu , Zenan Huang , Junbo Zhao , Lin Liu , Zhenzhong Lan , Bei Yu , Jianguo Li

Mixture-of-experts (MoE) models enable scalable transformer architectures by activating only a subset of experts per token. Recent evidence suggests that performance improves with increasingly granular experts, i.e., many small experts…

Machine Learning · Computer Science 2026-05-07 Klaus-Rudolf Kladny , Maximilian Mordig , Bernhard Schölkopf , Michael Muehlebach

Mixture-of-Experts (MoE) based Large Language Models (LLMs) have achieved superior performance, yet the massive memory overhead caused by storing multiple expert networks severely hinders their practical deployment. Singular Value…

Machine Learning · Computer Science 2026-02-13 Zhendong Mi , Yixiao Chen , Pu Zhao , Xiaodong Yu , Hao Wang , Yanzhi Wang , Shaoyi Huang

By routing input tokens to only a few split experts, Sparse Mixture-of-Experts has enabled efficient training of large language models. Recent findings suggest that fixing the routers can achieve competitive performance by alleviating the…