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Recent advances in large language models highlighted the excessive quadratic cost of self-attention. Despite the significant research efforts, subquadratic attention methods still suffer from inferior performance in practice. We hypothesize…

Machine Learning · Computer Science 2025-05-02 Piotr Piękos , Róbert Csordás , Jürgen Schmidhuber

The Mixture-of-Experts (MoE) architecture has been widely adopted in large language models (LLMs) to reduce computation cost through model sparsity. Employing speculative decoding (SD) can further accelerate MoE inference by drafting…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-07 Liangkun Chen , Zijian Wen , Tian Wu , Xiaoxi Zhang , Chuan Wu

Mixture-of-experts based models, which use language experts to extract language-specific representations effectively, have been well applied in code-switching automatic speech recognition. However, there is still substantial space to…

Sound · Computer Science 2023-10-10 Peikun Chen , Fan Yu , Yuhao Lian , Hongfei Xue , Xucheng Wan , Naijun Zheng , Huan Zhou , Lei Xie

The scaling of large language models (LLMs) is a critical research area for the efficiency and effectiveness of model training and deployment. Our work investigates the transferability and discrepancies of scaling laws between Dense Models…

Machine Learning · Computer Science 2024-10-10 Siqi Wang , Zhengyu Chen , Bei Li , Keqing He , Min Zhang , Jingang Wang

Sparse Mixtures of Experts (SMoE) scales model capacity without significant increases in training and inference costs, but exhibits the following two issues: (1) Low expert activation, where only a small subset of experts are activated for…

Computation and Language · Computer Science 2024-04-24 Xun Wu , Shaohan Huang , Wenhui Wang , Furu Wei

We propose Complete-muE, a framework which targets hyperparameter transfer across dense FFN and any Mixture-of-Experts (MoE) setups in transformer blocks. Existing tools such as $\mu$P (requires fixed architectue) or SDE (requires fixed…

Machine Learning · Computer Science 2026-05-25 Hongwu Peng , Ohiremen Dibua , Yuanjun Xiong , Yifan Gong , Jianming Zhang , Yan Kang

Mixture-of-Experts (MoE) has emerged as a prominent architecture for scaling model size while maintaining computational efficiency. In MoE, each token in the input sequence activates a different subset of experts determined by a routing…

Computation and Language · Computer Science 2024-11-05 Chufan Shi , Cheng Yang , Xinyu Zhu , Jiahao Wang , Taiqiang Wu , Siheng Li , Deng Cai , Yujiu Yang , Yu Meng

Small, highly trained, open-source large language models are widely used due to their inference efficiency, but further improving their quality remains a challenge. Sparse upcycling is a promising approach that transforms a pretrained dense…

Machine Learning · Computer Science 2024-11-15 Sasha Doubov , Nikhil Sardana , Vitaliy Chiley

All-MLP architectures have attracted increasing interest as an alternative to attention-based models. In NLP, recent work like gMLP shows that all-MLPs can match Transformers in language modeling, but still lag behind in downstream tasks.…

Computation and Language · Computer Science 2022-06-02 Ping Yu , Mikel Artetxe , Myle Ott , Sam Shleifer , Hongyu Gong , Ves Stoyanov , Xian Li

Large language models (LLMs) such as GPTs and Mixtral-8x7B have revolutionized machine intelligence due to their exceptional abilities in generic ML tasks. Transiting LLMs from datacenters to edge devices brings benefits like better privacy…

Machine Learning · Computer Science 2025-03-10 Rongjie Yi , Liwei Guo , Shiyun Wei , Ao Zhou , Shangguang Wang , Mengwei Xu

Recent frontier large language models predominantly rely on Mixture-of-Experts (MoE) architectures. Despite empirical progress, there is still no principled understanding of how hyperparameters should scale with network width $N$, expert…

Machine Learning · Computer Science 2026-05-15 Leena Chennuru Vankadara , Moritz Haas , Luke Hayward , Sebastian Bordt , Alessandro Breccia

End-to-end models with large capacity have significantly improved multilingual automatic speech recognition, but their computation cost poses challenges for on-device applications. We propose a streaming truly multilingual Conformer…

Computation and Language · Computer Science 2023-05-26 Ke Hu , Bo Li , Tara N. Sainath , Yu Zhang , Francoise Beaufays

Sparse mixture of experts (SMoE) offers an appealing solution to scale up the model complexity beyond the mean of increasing the network's depth or width. However, we argue that effective SMoE training remains challenging because of the…

Artificial Intelligence · Computer Science 2025-05-20 Nam V. Nguyen , Huy Nguyen , Quang Pham , Van Nguyen , Savitha Ramasamy , Nhat Ho

Mixture of Experts (MoE) LLMs face significant obstacles due to their massive parameter scale, which imposes memory, storage, and deployment challenges. Although recent expert merging methods promise greater efficiency by consolidating…

Machine Learning · Computer Science 2025-07-01 Lujun Li , Zhu Qiyuan , Jiacheng Wang , Wei Li , Hao Gu , Sirui Han , Yike Guo

The Mixture of Experts (MoE) model becomes an important choice of large language models nowadays because of its scalability with sublinear computational complexity for training and inference. However, existing MoE models suffer from two…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-04-25 Xin Chen , Hengheng Zhang , Xiaotao Gu , Kaifeng Bi , Lingxi Xie , Qi Tian

The sparsely activated mixture-of-experts (MoE) transformer has become a common architecture for large language models (LLMs) due to its sparsity, which requires fewer computational demands while easily scaling the model size. In MoE…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-14 Wenxiang Lin , Xinglin Pan , Lin Zhang , Shaohuai Shi , Xuan Wang , 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…

Computation and Language · Computer Science 2025-10-22 Changxin Tian , Kunlong Chen , Jia Liu , Ziqi Liu , Zhiqiang Zhang , Jun Zhou

Sparse Mixture-of-Experts (MoE) models can outperform dense large language models at similar computation by activating only a small set of experts per token. However, stacking many expert modules introduces substantial parameter memory,…

Artificial Intelligence · Computer Science 2026-04-03 Xin He , Shunkang Zhang , Kaijie Tang , Shaohuai Shi , Yuxin Wang , Zihao Zeng , Zhenheng Tang , Xiaowen Chu , Haiyan Yin , Ivor W. Tsang , Yew Soon Ong

Recent large language models such as Gemini-1.5, DeepSeek-V3, and Llama-4 increasingly adopt Mixture-of-Experts (MoE) architectures, which offer strong efficiency-performance trade-offs by activating only a fraction of the model per token.…

Computation and Language · Computer Science 2025-05-27 Hao Kang , Zichun Yu , Chenyan Xiong

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…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Anzhe Cheng , Shukai Duan , Shixuan Li , Chenzhong Yin , Mingxi Cheng , Heng Ping , Tamoghna Chattopadhyay , Sophia I Thomopoulos , Shahin Nazarian , Paul Thompson , Paul Bogdan