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Mixture-of-Experts (MoE) models have gained popularity in achieving state-of-the-art performance in a wide range of tasks in computer vision and natural language processing. They effectively expand the model capacity while incurring a…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-21 Haiyang Huang , Newsha Ardalani , Anna Sun , Liu Ke , Hsien-Hsin S. Lee , Anjali Sridhar , Shruti Bhosale , Carole-Jean Wu , Benjamin Lee

Mixture-of-Experts (MoE) models are widely used to scale language models, yet their expert routing behavior and adaptation in a multilingual setting remain underexplored. In this work, we study multilingual routing dynamics during continual…

Computation and Language · Computer Science 2026-05-29 Aditi Khandelwal , Marius Mosbach , Verna Dankers , Siva Reddy , Golnoosh Farnadi

Mixture of Experts (MoE) models have enabled the scaling of Large Language Models (LLMs) and Vision Language Models (VLMs) by achieving massive parameter counts while maintaining computational efficiency. However, MoEs introduce several…

Mixture-of-Experts (MoE) architectures have emerged as a promising paradigm for scaling large language models (LLMs) with sparse activation of task-specific experts. Despite their computational efficiency during inference, the massive…

Computation and Language · Computer Science 2025-04-11 Hongcheng Guo , Juntao Yao , Boyang Wang , Junjia Du , Shaosheng Cao , Donglin Di , Shun Zhang , Zhoujun Li

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

While Dense Retrieval Models (DRMs) have advanced Information Retrieval (IR), one limitation of these neural models is their narrow generalizability and robustness. To cope with this issue, one can leverage the Mixture-of-Experts (MoE)…

Information Retrieval · Computer Science 2024-12-17 Effrosyni Sokli , Pranav Kasela , Georgios Peikos , Gabriella Pasi

Sparse Mixture of Experts (sMoE) has become a pivotal approach for scaling large vision-language models, offering substantial capacity while maintaining computational efficiency through dynamic, sparse activation of experts. However,…

Machine Learning · Computer Science 2025-10-21 Yongxiang Hua , Haoyu Cao , Zhou Tao , Bocheng Li , Zihao Wu , Chaohu Liu , Linli Xu

Mixture-of-Experts (MoE) models achieve efficient scaling through sparse expert activation, but often suffer from suboptimal routing decisions due to distribution shifts in deployment. While existing test-time adaptation methods could…

Computation and Language · Computer Science 2025-10-17 Guinan Su , Yanwu Yang , Li Shen , Lu Yin , Shiwei Liu , Jonas Geiping

Sparsely activated Mixture-of-Experts (MoE) models are widely adopted to scale up model capacity without increasing the computation budget. However, vanilla TopK routers are trained in a discontinuous, non-differentiable way, limiting their…

Machine Learning · Computer Science 2025-02-28 Ziteng Wang , Jun Zhu , Jianfei Chen

Due to the cost-prohibitive nature of training Large Language Models (LLMs), fine-tuning has emerged as an attractive alternative for specializing LLMs for specific tasks using limited compute resources in a cost-effective manner. In this…

Computation and Language · Computer Science 2024-08-15 Yuchen Xia , Jiho Kim , Yuhan Chen , Haojie Ye , Souvik Kundu , Cong Hao , Nishil Talati

Sparsely-activated Mixture-of-Experts (SMoE) models offer efficient pre-training and low latency but their large parameter counts create significant memory overhead, motivating research into expert compression. Contrary to recent findings…

Machine Learning · Computer Science 2026-05-14 Mike Lasby , Ivan Lazarevich , Nish Sinnadurai , Sean Lie , Yani Ioannou , Vithursan Thangarasa

As large language models continue to scale, computational costs and resource consumption have emerged as significant challenges. While existing sparsification methods like pruning reduce computational overhead, they risk losing model…

Computation and Language · Computer Science 2025-09-16 Minxuan Lv , Zhenpeng Su , Leiyu Pan , Yizhe Xiong , Zijia Lin , Hui Chen , Wei Zhou , Jungong Han , Guiguang Ding , Cheng Luo , Di Zhang , Kun Gai , Songlin Hu

Sparse Mixture-of-Experts (MoE) architectures are increasingly popular for frontier large language models (LLM) but they introduce training challenges due to routing complexity. Fully leveraging parameters of an MoE model requires all…

Sparse Mixture-of-Experts (MoE) architectures enable efficient scaling of large language models through conditional computation, yet the routing mechanisms responsible for expert selection remain poorly understood. In this work, we…

Machine Learning · Computer Science 2026-03-13 Mynampati Sri Ranganadha Avinash

Recently, Mixture of Experts (MoE) based Transformer has shown promising results in many domains. This is largely due to the following advantages of this architecture: firstly, MoE based Transformer can increase model capacity without…

Sound · Computer Science 2021-05-10 Zhao You , Shulin Feng , Dan Su , Dong Yu

Scaling the size of a model enhances its capabilities but significantly increases computation complexity. Mixture-of-Experts models (MoE) address the issue by allowing model size to scale up without substantially increasing training or…

Computation and Language · Computer Science 2024-08-30 Zhenpeng Su , Zijia Lin , Xue Bai , Xing Wu , Yizhe Xiong , Haoran Lian , Guangyuan Ma , Hui Chen , Guiguang Ding , Wei Zhou , Songlin Hu

The mixture of Expert (MoE) parallelism is a recent advancement that scales up the model size with constant computational cost. MoE selects different sets of parameters (i.e., experts) for each incoming token, resulting in a…

Machine Learning · Computer Science 2022-12-13 Chaoyang He , Shuai Zheng , Aston Zhang , George Karypis , Trishul Chilimbi , Mahdi Soltanolkotabi , Salman Avestimehr

Machine Learning Interatomic Potentials (MLIPs) enable accurate large-scale atomistic simulations, yet improving their expressive capacity efficiently remains challenging. Here we systematically develop Mixture-of-Experts (MoE) and…

Chemical Physics · Physics 2026-03-13 Yuzhi Liu , Duo Zhang , Anyang Peng , Weinan E , Linfeng Zhang , Han Wang

Mixture-of-Experts (MoE) architectures enable conditional computation by activating only a subset of model parameters for each input. Although sparse routing has been highly effective in language models and has also shown promise in vision,…

Machine Learning · Computer Science 2026-04-07 Vadim Vashkelis , Natalia Trukhina

Sparsely activated models (SAMs), such as Mixture-of-Experts (MoE), can easily scale to have outrageously large amounts of parameters without significant increase in computational cost. However, SAMs are reported to be parameter inefficient…

Computation and Language · Computer Science 2022-02-07 Simiao Zuo , Xiaodong Liu , Jian Jiao , Young Jin Kim , Hany Hassan , Ruofei Zhang , Tuo Zhao , Jianfeng Gao