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Mixture-of-Experts (MoE) models embody the divide-and-conquer concept and are a promising approach for increasing model capacity, demonstrating excellent scalability across multiple domains. In this paper, we integrate the MoE structure…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Xumeng Han , Longhui Wei , Zhiyang Dou , Zipeng Wang , Chenhui Qiang , Xin He , Yingfei Sun , Zhenjun Han , Qi Tian

MoE-PEFT methods combine Mixture of Experts with parameter-efficient fine-tuning for multi-task adaptation, but require separate adapters per expert causing trainable parameters to scale linearly with expert count and limiting applicability…

Machine Learning · Computer Science 2026-04-06 Md Kowsher , Haris Mansoor , Nusrat Jahan Prottasha , Ozlem Garibay , Victor Zhu , Zhengping Ji , Chen Chen

Mixture-of-Experts (MoE) models offer computational efficiency during inference by activating only a subset of specialized experts for a given input. This enables efficient model scaling on multi-GPU systems that use expert parallelism…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-18 Zachary Doucet , Rishi Sharma , Martijn de Vos , Rafael Pires , Anne-Marie Kermarrec , Oana Balmau

Multi-task learning (MTL) for dense prediction has shown promising results but still faces challenges in balancing shared representations with task-specific specialization. In this paper, we introduce a novel Fine-Grained Mixture of Experts…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Yangyang Xu , Xi Ye , Duo Su

We present Bayesian Mixture of Experts (Bayesian-MoE), a post-hoc uncertainty estimation framework for fine-tuned large language models (LLMs) based on Mixture-of-Experts architectures. Our method applies a structured Laplace approximation…

Machine Learning · Computer Science 2025-11-13 Maryam Dialameh , Hossein Rajabzadeh , Weiwei Zhang , Walid Ahmed , Hyock Ju Kwon

Mixture-of-Experts (MoE) models have emerged as a promising direction for scaling vision architectures efficiently. Among them, Soft MoE improves training stability by assigning each token to all experts via continuous dispatch weights.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Chengxi Min , Wei Wang , Yahui Liu , Weixin Ye , Enver Sangineto , Qi Wang , Yao Zhao

Reinforcement learning (RL) has equipped LLM agents with a strong ability to solve complex tasks. However, existing RL methods normally use a \emph{single} policy network, causing \emph{simplicity bias} where simple tasks occupy most…

Artificial Intelligence · Computer Science 2026-05-20 Shengtian Yang , Yu Li , Shuo He , Yewen Li , Qingpeng Cai , Peng Jiang , Lei Feng

Sparse Mixture-of-Experts (MoE) architectures route each token through a subset of experts at each layer independently. We propose viewing MoE computation through the lens of \emph{expert paths} -- the sequence of expert selections a token…

Machine Learning · Computer Science 2026-04-07 Zijin Gu , Tatiana Likhomanenko , Vimal Thilak , Jason Ramapuram , Navdeep Jaitly

As the era of big data arrives, traditional artificial intelligence algorithms have difficulty processing the demands of massive and diverse data. Mixture of experts (MoE) has shown excellent performance and broad application prospects.…

Machine Learning · Computer Science 2025-01-29 Wensheng Gan , Zhenyao Ning , Zhenlian Qi , Philip S. Yu

Multi-Head Mixture-of-Experts (MH-MoE) demonstrates superior performance by using the multi-head mechanism to collectively attend to information from various representation spaces within different experts. In this paper, we present a novel…

Computation and Language · Computer Science 2024-12-02 Shaohan Huang , Xun Wu , Shuming Ma , Furu Wei

Linear Mode Connectivity (LMC) is a notable phenomenon in the loss landscapes of neural networks, wherein independently trained models have been observed to be connected--up to permutation symmetries--by linear paths in parameter space…

Machine Learning · Computer Science 2025-10-28 Viet-Hoang Tran , Van Hoan Trinh , Khanh Vinh Bui , Tan M. Nguyen

The Mixture of Experts (MoE) paradigm provides a powerful way to decompose dense layers into smaller, modular computations often more amenable to human interpretation, debugging, and editability. However, a major challenge lies in the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 James Oldfield , Markos Georgopoulos , Grigorios G. Chrysos , Christos Tzelepis , Yannis Panagakis , Mihalis A. Nicolaou , Jiankang Deng , Ioannis Patras

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) architectures are widely used for efficiency and conditional computation, but their effect on the geometry of learned functions and representations remains poorly understood. We study MoEs through a geometric lens,…

Machine Learning · Computer Science 2026-02-19 Feilong Liu

Mixture-of-Experts (MoE) based Large Language Models (LLMs) have demonstrated impressive performance and computational efficiency. However, their deployment is often constrained by substantial memory demands, primarily due to the need to…

Machine Learning · Computer Science 2026-03-16 Jiawei Hao , Zhiwei Hao , Jianyuan Guo , Li Shen , Yong Luo , Han Hu , Dan Zeng

Mixture-of-Experts (MoE) models scale capacity via sparse activation but stress memory and bandwidth. Offloading alleviates GPU memory by fetching experts on demand, yet token-level routing causes irregular transfers that make inference…

Machine Learning · Computer Science 2025-12-22 Zhenyu Liu , Yunzhen Liu , Zehao Fan , Garrett Gagnon , Yayue Hou , Nan Wu , Yangwook Kang , Liu Liu

We propose MoE-F - a formalized mechanism for combining $N$ pre-trained Large Language Models (LLMs) for online time-series prediction by adaptively forecasting the best weighting of LLM predictions at every time step. Our mechanism…

Mixture of Experts (MoE) has emerged as a promising paradigm for scaling model capacity while preserving computational efficiency, particularly in large-scale machine learning architectures such as large language models (LLMs). Recent…

Networking and Internet Architecture · Computer Science 2026-01-29 Yunting Xu , Jiacheng Wang , Ruichen Zhang , Changyuan Zhao , Dusit Niyato , Jiawen Kang , Zehui Xiong , Bo Qian , Haibo Zhou , Shiwen Mao , Abbas Jamalipour , Xuemin Shen , Dong In Kim

We present a novel weighted average model based on the mixture of experts (MoE) concept to provide robustness in Federated learning (FL) against the poisoned/corrupted/outdated local models. These threats along with the non-IID nature of…

Machine Learning · Computer Science 2021-04-26 Saeedeh Parsaeefard , Sayed Ehsan Etesami , Alberto Leon Garcia

Mixture-of-Experts (MoE) architectures are increasingly used to efficiently scale large language models. However, in production inference, request batching and speculative decoding significantly amplify expert activation, eroding these…

Machine Learning · Computer Science 2026-02-10 Daniil Vankov , Nikita Ivkin , Kyle Ulrich , Xiang Song , Ashish Khetan , George Karypis