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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…

机器学习 · 计算机科学 2026-05-13 Margaret Li , Sneha Kudugunta , Danielle Rothermel , Luke Zettlemoyer

Mixture-of-Experts (MoE) layers have emerged as an important tool in scaling up modern neural networks by decoupling total trainable parameters from activated parameters in the forward pass for each token. However, sparse MoEs add…

机器学习 · 计算机科学 2026-05-22 Tianze Jiang , Blake Bordelon , Cengiz Pehlevan , Boris Hanin

Mixture-of-Experts (MoE) architectures have become the key to scaling modern LLMs, yet little is understood about how their sparse routing dynamics respond to multilingual data. In this work, we analyze expert routing patterns using…

计算与语言 · 计算机科学 2026-02-19 Lucas Bandarkar , Chenyuan Yang , Mohsen Fayyaz , Junlin Hu , Nanyun Peng

Mixture of Experts (MoE) have shown remarkable success in leveraging specialized expert networks for complex machine learning tasks. However, their susceptibility to adversarial attacks presents a critical challenge for deployment in robust…

机器学习 · 计算机科学 2025-05-28 Xu Zhang , Kaidi Xu , Ziqing Hu , Ren Wang

An increasing number of LLMs employ Mixture-of-Experts (MoE) architectures where the feed-forward layer is replaced by a pool of experts and each token only activates a small subset of them. During autoregressive generation, these models…

In this paper, we aim to build a robust question answering system that can adapt to out-of-domain datasets. A single network may overfit to the superficial correlation in the training distribution, but with a meaningful number of expert…

计算与语言 · 计算机科学 2022-04-21 Yu Qing Zhou , Xixuan Julie Liu , Yuanzhe Dong

Mixture-of-Experts (MoE) model architectures can significantly reduce the number of activated parameters per token, enabling computationally efficient training and inference. However, their large overall parameter counts and model sizes…

机器学习 · 计算机科学 2026-02-13 Arian Raje , Anupam Nayak , Gauri Joshi

Sparse Mixture-of-Experts (MoE) models scale capacity by routing each token to a small subset of experts. However, their routers exhibit a fundamental trade-off: strong load balancing can suppress expert specialization, while aggressive…

机器学习 · 计算机科学 2026-05-12 Gleb Molodtsov , Alexander Miasnikov , Aleksandr Beznosikov

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…

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.…

机器学习 · 计算机科学 2025-01-29 Wensheng Gan , Zhenyao Ning , Zhenlian Qi , Philip S. Yu

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…

机器学习 · 计算机科学 2025-12-22 Zhenyu Liu , Yunzhen Liu , Zehao Fan , Garrett Gagnon , Yayue Hou , Nan Wu , Yangwook Kang , Liu Liu

With the widespread adoption of Large Language Models (LLMs), many deep learning practitioners are looking for strategies of running these models more efficiently. One such strategy is to use sparse Mixture-of-Experts (MoE) - a type of…

机器学习 · 计算机科学 2023-12-29 Artyom Eliseev , Denis Mazur

The Mixture-of-Experts (MoE) architecture has enabled the creation of massive yet efficient Large Language Models (LLMs). However, the standard deterministic routing mechanism presents a significant limitation: its inherent brittleness is a…

机器学习 · 计算机科学 2025-09-30 Albus Yizhuo Li

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…

计算与语言 · 计算机科学 2025-10-17 Guinan Su , Yanwu Yang , Li Shen , Lu Yin , Shiwei Liu , Jonas Geiping

The relentless scaling of deep learning models has led to unsustainable computational demands, positioning Mixture-of-Experts (MoE) architectures as a promising path towards greater efficiency. However, MoE models are plagued by two…

机器学习 · 计算机科学 2026-01-21 Anzhe Cheng , Shukai Duan , Shixuan Li , Chenzhong Yin , Mingxi Cheng , Shahin Nazarian , Paul Thompson , Paul Bogdan

The goal of this paper is to improve (upcycle) an existing large language model without the prohibitive requirements of continued pre-training of the full-model. The idea is to split the pre-training data into semantically relevant groups…

机器学习 · 计算机科学 2024-10-15 Ajinkya Tejankar , KL Navaneet , Ujjawal Panchal , Kossar Pourahmadi , Hamed Pirsiavash

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…

The Mixture-of-Experts (MoE) models have gained significant attention in deep learning due to their dynamic resource allocation and superior performance across diverse tasks. However, efficiently training these models remains challenging.…

计算与语言 · 计算机科学 2025-09-03 Junfeng Ran , Guangxiang Zhao , Yuhan Wu , Dawei Zhu , Longyun Wu , Yikai Zhao , Tong Yang , Lin Sun , Xiangzheng Zhang , Sujian Li

Foundation models are increasingly being deployed in contexts where understanding the uncertainty of their outputs is critical to ensuring responsible deployment. While Bayesian methods offer a principled approach to uncertainty…

机器学习 · 计算机科学 2026-03-17 Albus Yizhuo Li , Matthew Wicker

We introduce a Mixture of Raytraced Experts, a stacked Mixture of Experts (MoE) architecture which can dynamically select sequences of experts, producing computational graphs of variable width and depth. Existing MoE architectures generally…

机器学习 · 计算机科学 2025-07-17 Andrea Perin , Giacomo Lagomarsini , Claudio Gallicchio , Giuseppe Nuti