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The Mixture of Experts (MoE) selects a few feed-forward networks (FFNs) per token, achieving an effective trade-off between computational cost and performance. In conventional MoE, each expert is treated as entirely independent, and experts…

Machine Learning · Computer Science 2026-01-27 Shota Takashiro , Takeshi Kojima , Shohei Taniguchi , Yusuke Iwasawa , Yutaka Matsuo

Mixture-of-Expert (MoE) presents a strong potential in enlarging the size of language model to trillions of parameters. However, training trillion-scale MoE requires algorithm and system co-design for a well-tuned high performance…

Machine Learning · Computer Science 2021-03-25 Jiaao He , Jiezhong Qiu , Aohan Zeng , Zhilin Yang , Jidong Zhai , Jie Tang

Mixture of experts (MoE) architectures have become a cornerstone for scaling up and are a key component in most large language models such as GPT-OSS, DeepSeek-V3, Llama-4, and Gemini-2.5. However, systematic research on MoE remains…

Computation and Language · Computer Science 2026-02-11 Nam V. Nguyen , Thong T. Doan , Luong Tran , Van Nguyen , Quang Pham

Mixture-of-Experts (MoE) has become a dominant architecture for scaling large language models (LLMs). However, the execution characteristics of MoE inference are changing rapidly and increasingly mismatch the assumptions underlying existing…

Hardware Architecture · Computer Science 2026-05-13 Jungwoo Kim , Rubens Lacouture , Genghan Zhang , Gina Sohn , Qizheng Zhang , Swapnil Gandhi , Christos Kozyrakis , Kunle Olukotun

Mixture-of-Experts (MoE) architectures have become standard in large language models, yet many of their core design choices - expert count, granularity, shared experts, load balancing, token dropping - have only been studied one or two at a…

Machine Learning · Computer Science 2026-05-13 Margaret Li , Sneha Kudugunta , Danielle Rothermel , Luke Zettlemoyer

Mixture of Experts (MoE) models based on Transformer architecture are pushing the boundaries of language and vision tasks. The allure of these models lies in their ability to substantially increase the parameter count without a…

Mixture of experts has emerged as the primary mechanism for making Large Language Models (LLMs) computationally efficient. However, in distributed settings, communicating token embeddings between experts is a significant bottleneck. We…

Machine Learning · Computer Science 2026-05-08 Muhammad Shahir Abdurrahman , Chun Deng , Azalia Mirhoseini , Philip Levis

The expansion of large language models is increasingly limited by the constrained memory capacity of modern GPUs. To mitigate this, Mixture-of-Experts (MoE) architectures activate only a small portion of parameters during inference,…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-31 Zixu Shen , Kexin Chu , Yifan Zhang , Dawei Xiang , Runxin Wu , Wei Zhang

Mixture-of-Experts (MoE) enables efficient scaling of large language models (LLMs) with sparsely activated experts during inference. To effectively deploy large MoE models on memory-constrained devices, many systems introduce *expert…

Machine Learning · Computer Science 2026-03-03 Jingcong Liang , Siyuan Wang , Miren Tian , Yitong Li , Duyu Tang , Zhongyu 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

We propose a novel adaptive Mixture-of-Experts (MoE) framework for time series forecasting that enhances expert specialization by incorporating expert-specific loss information directly into the training process. Notably, the overall…

Machine Learning · Statistics 2026-05-12 Btissame El Mahtout , Florian Ziel

Effectively managing missing modalities is a fundamental challenge in real-world multimodal learning scenarios, where data incompleteness often results from systematic collection errors or sensor failures. Sparse Mixture-of-Experts (SMoE)…

Machine Learning · Computer Science 2026-05-12 Liangwei Nathan Zheng , Wei Emma Zhang , Mingyu Guo , Olaf Maennel , Weitong Chen

Mixture-of-Experts (MoE) presents a naturally compatible and scalable framework for multimodal learning, demonstrating strong adaptability across diverse modalities and tasks. Despite its growing success, a comprehensive and systematic…

Machine Learning · Computer Science 2026-05-28 Liangwei Nathan Zheng , Wei Emma Zhang , Olaf Maennel , Lin Yue , Weitong Chen

Mixture-of-experts (MoE) has been extensively employed to scale large language models to trillion-plus parameters while maintaining a fixed computational cost. The development of large MoE models in the distributed scenario encounters the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-05 Shulai Zhang , Ningxin Zheng , Haibin Lin , Ziheng Jiang , Wenlei Bao , Chengquan Jiang , Qi Hou , Weihao Cui , Size Zheng , Li-Wen Chang , Quan Chen , Xin Liu

Artificial intelligence (AI) has achieved astonishing successes in many domains, especially with the recent breakthroughs in the development of foundational large models. These large models, leveraging their extensive training data, provide…

Machine Learning · Computer Science 2026-01-27 Siyuan Mu , Sen Lin

Mixture of experts (MoE), introduced over 20 years ago, is the simplest gated modular neural network architecture. There is renewed interest in MoE because the conditional computation allows only parts of the network to be used during each…

Machine Learning · Computer Science 2023-03-01 Yamuna Krishnamurthy , Chris Watkins , Thomas Gaertner

Mixture-of-Experts (MoE) models enable scalable performance but face severe memory constraints on edge devices. Existing offloading strategies struggle with I/O bottlenecks due to the dynamic, low-information nature of autoregressive expert…

Machine Learning · Computer Science 2026-03-12 Shuhuai Li , Jianghao Lin , Dongdong Ge , Yinyu Ye

Mixture-of-Experts (MoE) models can achieve promising results with outrageous large amount of parameters but constant computation cost, and thus it has become a trend in model scaling. Still it is a mystery how MoE layers bring quality…

Machine Learning · Computer Science 2021-08-10 An Yang , Junyang Lin , Rui Men , Chang Zhou , Le Jiang , Xianyan Jia , Ang Wang , Jie Zhang , Jiamang Wang , Yong Li , Di Zhang , Wei Lin , Lin Qu , Jingren Zhou , Hongxia Yang

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

Parameter-efficient fine-tuning has demonstrated promising results across various visual adaptation tasks, such as classification and segmentation. Typically, prompt tuning techniques have harnessed knowledge from a single pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Shentong Mo , Xufang Luo , Dongsheng Li