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Sparse mixture of expert architectures (MoEs) scale model capacity without significant increases in training or inference costs. Despite their success, MoEs suffer from a number of issues: training instability, token dropping, inability to…

机器学习 · 计算机科学 2024-05-28 Joan Puigcerver , Carlos Riquelme , Basil Mustafa , Neil Houlsby

Localizing neuronal activity in the brain, both in time and in space, is a central challenge to advance the understanding of brain function. Because of the inability of any single neuroimaging techniques to cover all aspects at once, there…

神经元与认知 · 定量生物学 2013-07-09 Yaroslav O. Halchenko , Michael Hanke , James V. Haxby , Stephen Jose Hanson , Christoph S. Herrmann

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…

计算与语言 · 计算机科学 2026-02-11 Nam V. Nguyen , Thong T. Doan , Luong Tran , Van Nguyen , Quang Pham

Diffusion models have emerged as the de facto choice for generating high-quality visual signals across various domains. However, training a single model to predict noise across various levels poses significant challenges, necessitating…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Tiankai Hang , Shuyang Gu , Xin Geng , Baining Guo

Mixture-of-Experts (MoE) has become a dominant architecture in large language models (LLMs) due to its ability to scale model capacity via sparse expert activation. Meanwhile, serverless computing, with its elasticity and pay-per-use…

分布式、并行与集群计算 · 计算机科学 2025-12-23 Wentao Liu , Yuhao Hu , Ruiting Zhou , Baochun Li , Ne Wang

Mixture-of-Experts (MoE) architectures expand model capacity by sparsely activating experts but face two core challenges: misalignment between router logits and each expert's internal structure leads to unstable routing and expert…

Recent advances in language and vision have demonstrated that scaling up model capacity consistently improves performance across diverse tasks. In 3D visual geometry reconstruction, large-scale training has likewise proven effective for…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Jingnan Gao , Zhe Wang , Xianze Fang , Xingyu Ren , Zhuo Chen , Shengqi Liu , Yuhao Cheng , Jiangjing Lyu , Xiaokang Yang , Yichao Yan

Mixture-of-Experts (MoE) models have become a dominant paradigm for scaling large language models, but their rapidly growing parameter sizes introduce a fundamental inefficiency during inference: most expert weights remain idle in GPU…

机器学习 · 计算机科学 2026-05-01 Qingxiu Liu , Cyril Y. He , Hanser Jiang , Zion Wang , Alan Zhao , Patrick P. C. Lee

We propose Chain-of-Experts (CoE), a new Mixture-of-Experts (MoE) architecture that introduces sequential expert communication within each layer. Unlike traditional MoE models, where experts operate independently in parallel, CoE processes…

机器学习 · 计算机科学 2025-06-25 Zihan Wang , Rui Pan , Jiarui Yao , Robert Csordas , Linjie Li , Lu Yin , Jiajun Wu , Tong Zhang , Manling Li , Shiwei Liu

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

Multi-modal MRI offers valuable complementary information for diagnosis and treatment; however, its utility is limited by prolonged scanning times. To accelerate the acquisition process, a practical approach is to reconstruct images of the…

图像与视频处理 · 电气工程与系统科学 2024-07-09 Jing Zou , Lanqing Liu , Qi Chen , Shujun Wang , Zhanli Hu , Xiaohan Xing , Jing Qin

Most existing MRI reconstruction methods perform tar-geted reconstruction of the entire MR image without tak-ing specific tissue regions into consideration. This may fail to emphasize the reconstruction accuracy on im-portant tissues for…

图像与视频处理 · 电气工程与系统科学 2023-09-06 Yu Guan , Chuanming Yu , Shiyu Lu , Zhuoxu Cui , Dong Liang , Qiegen Liu

Efficient inference is a critical challenge in deep generative modeling, particularly as diffusion models grow in capacity and complexity. While increased complexity often improves accuracy, it raises compute costs, latency, and memory…

机器学习 · 计算机科学 2025-09-24 Siu Hang Ho , Prasad Ganesan , Nguyen Duong , Daniel Schlabig

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

Recent advancements have progressively incorporated frequency-based techniques into deep learning models, leading to notable improvements in accuracy and efficiency for time series analysis tasks. However, the Mid-Frequency Spectrum Gap in…

机器学习 · 计算机科学 2025-03-04 Guoqi Yu , Yaoming Li , Juncheng Wang , Xiaoyu Guo , Angelica I. Aviles-Rivero , Tong Yang , Shujun Wang

The parameter size of modern large language models (LLMs) can be scaled up via the sparsely-activated Mixture-of-Experts (MoE) technique to avoid excessive increase of the computational costs. To further improve training efficiency,…

分布式、并行与集群计算 · 计算机科学 2025-10-08 Yunqi Gao , Bing Hu , Mahdi Boloursaz Mashhadi , A-Long Jin , Yanfeng Zhang , Pei Xiao , Rahim Tafazolli , Merouane Debbah

We propose a novel algorithm for sleep dynamics visualization and automatic annotation by applying diffusion geometry based sensor fusion algorithm to fuse spectral information from two electroencephalograms (EEG). The diffusion geometry…

信号处理 · 电气工程与系统科学 2019-05-08 Gi-Ren Liu , Yu-Lun Lo , John Malik , Yuan-Chung Sheu , Hau-tieng Wu

Linear mixed-effects model (LMM) is a cornerstone of longitudinal data analysis, but is limited to adeptly make heterogeneous analyses predictable under both group-specific fixed effects and subject-specific random effects. To address this…

统计方法学 · 统计学 2026-03-10 Xinkai Yue , Xiaodong Yan , Haohui Han , Liya Fu

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…

机器学习 · 计算机科学 2026-05-08 Muhammad Shahir Abdurrahman , Chun Deng , Azalia Mirhoseini , Philip Levis

Autoregressive models (ARMs) are hindered by slow sequential inference. While masked diffusion models (MDMs) offer a parallel alternative, they suffer from critical drawbacks: high computational overhead from precluding Key-Value (KV)…

计算与语言 · 计算机科学 2026-03-06 Jia-Nan Li , Jian Guan , Wei Wu , Chongxuan Li