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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…

机器学习 · 计算机科学 2025-11-13 Maryam Dialameh , Hossein Rajabzadeh , Weiwei Zhang , Walid Ahmed , Hyock Ju Kwon

The mixture of experts (MoE) model is a sparse variant of large language models (LLMs), designed to hold a better balance between intelligent capability and computational overhead. Despite its benefits, MoE is still too expensive to deploy…

分布式、并行与集群计算 · 计算机科学 2025-04-23 Haodong Wang , Qihua Zhou , Zicong Hong , Song Guo

Large Language Models (LLMs) have demonstrated remarkable abilities in tackling a wide range of complex tasks. However, their huge computational and memory costs raise significant challenges in deploying these models on resource-constrained…

Recent large language models (LLMs) have tended to leverage sparsity to reduce computations, employing the sparsely activated mixture-of-experts (MoE) technique. MoE introduces four modules, including token routing, token communication,…

机器学习 · 计算机科学 2025-01-22 Xinglin Pan , Wenxiang Lin , Lin Zhang , Shaohuai Shi , Zhenheng Tang , Rui Wang , Bo Li , Xiaowen Chu

Mixture-of-Experts (MoE) has become a dominant architecture for scaling Large Language Models (LLMs) efficiently by decoupling total parameters from computational cost. However, this decoupling creates a critical challenge: predicting the…

计算与语言 · 计算机科学 2025-10-22 Changxin Tian , Kunlong Chen , Jia Liu , Ziqi Liu , Zhiqiang Zhang , Jun Zhou

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…

机器学习 · 计算机科学 2026-05-28 Liangwei Nathan Zheng , Wei Emma Zhang , Olaf Maennel , Lin Yue , Weitong Chen

Mixture-of-Experts (MoE) activates only a subset of experts during inference, allowing the model to maintain low inference FLOPs and latency even as the parameter count scales up. However, since MoE dynamically selects the experts, all the…

机器学习 · 计算机科学 2025-05-27 Shibo Jie , Yehui Tang , Kai Han , Yitong Li , Duyu Tang , Zhi-Hong Deng , Yunhe Wang

The deployment of mixture-of-experts (MoE) large language models (LLMs) presents significant challenges due to their high memory demands. These challenges become even more pronounced in multi-tenant environments, where shared resources must…

机器学习 · 计算机科学 2025-05-13 HamidReza Imani , Jiaxin Peng , Peiman Mohseni , Abdolah Amirany , Tarek El-Ghazawi

Recent advances in deep learning and large language models (LLMs) have facilitated the deployment of the mixture-of-experts (MoE) mechanism in the stock investment domain. While these models have demonstrated promising trading performance,…

机器学习 · 计算机科学 2025-01-20 Kuan-Ming Liu , Ming-Chih Lo

The first-stage retrieval aims to retrieve a subset of candidate documents from a huge collection both effectively and efficiently. Since various matching patterns can exist between queries and relevant documents, previous work tries to…

信息检索 · 计算机科学 2023-11-07 Yinqiong Cai , Yixing Fan , Keping Bi , Jiafeng Guo , Wei Chen , Ruqing Zhang , Xueqi Cheng

To help the open-source community have a better understanding of Mixture-of-Experts (MoE) based large language models (LLMs), we train and release OpenMoE, a series of fully open-sourced and reproducible decoder-only MoE LLMs, ranging from…

计算与语言 · 计算机科学 2024-03-28 Fuzhao Xue , Zian Zheng , Yao Fu , Jinjie Ni , Zangwei Zheng , Wangchunshu Zhou , Yang You

Conventional large language models (LLMs) are equipped with dozens of GB to TB of model parameters, making inference highly energy-intensive and costly as all the weights need to be loaded to onboard processing elements during computation.…

硬件体系结构 · 计算机科学 2025-07-28 Wei-Hsing Huang , Janak Sharda , Cheng-Jhih Shih , Yuyao Kong , Faaiq Waqar , Pin-Jun Chen , Yingyan , Lin , Shimeng Yu

Mixture-of-Experts (MoE) architectures have emerged as a key strategy for scaling large language models (LLMs) efficiently. However, current MoE systems suffer from severe load imbalance, where only a small subset of experts is consistently…

机器学习 · 计算机科学 2025-06-27 Jiajie Yang

Scaling the size of language models usually leads to remarkable advancements in NLP tasks. But it often comes with a price of growing computational cost. Although a sparse Mixture of Experts (MoE) can reduce the cost by activating a small…

计算与语言 · 计算机科学 2023-11-23 Shwai He , Run-Ze Fan , Liang Ding , Li Shen , Tianyi Zhou , Dacheng Tao

Mixture-of-Experts based large language models (MoE LLMs) have shown significant promise in multitask adaptability by dynamically routing inputs to specialized experts. Despite their success, the collaborative mechanisms among experts are…

机器学习 · 计算机科学 2025-04-18 Yuanbo Tang , Yan Tang , Naifan Zhang , Meixuan Chen , Yang Li

The Mixture-of-Experts (MoE) layer, a sparsely-activated model controlled by a router, has achieved great success in deep learning. However, the understanding of such architecture remains elusive. In this paper, we formally study how the…

机器学习 · 计算机科学 2022-08-05 Zixiang Chen , Yihe Deng , Yue Wu , Quanquan Gu , Yuanzhi Li

The performance of the reward model (RM) is a critical factor in improving the effectiveness of the large language model (LLM) during alignment fine-tuning. There remain two challenges in RM training: 1) training the same RM using various…

计算与语言 · 计算机科学 2024-04-30 Shanghaoran Quan

Model editing aims to efficiently alter the behavior of Large Language Models (LLMs) within a desired scope, while ensuring no adverse impact on other inputs. Recent years have witnessed various model editing methods been proposed. However,…

计算与语言 · 计算机科学 2024-06-04 Renzhi Wang , Piji Li

Scaling large language models (LLMs) significantly improves performance but comes with prohibitive computational costs. Mixture-of-Experts (MoE) models offer an efficient alternative, increasing capacity without a proportional rise in…

机器学习 · 计算机科学 2024-12-16 Aditya Vavre , Ethan He , Dennis Liu , Zijie Yan , June Yang , Nima Tajbakhsh , Ashwath Aithal

The Mixture-of-Experts (MoE) architecture has demonstrated significant advantages in the era of Large Language Models (LLMs), offering enhanced capabilities with reduced inference costs. However, deploying MoE-based LLMs on…

机器学习 · 计算机科学 2024-11-07 Peng Tang , Jiacheng Liu , Xiaofeng Hou , Yifei Pu , Jing Wang , Pheng-Ann Heng , Chao Li , Minyi Guo