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Related papers: Layerwise Recurrent Router for Mixture-of-Experts

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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 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…

Machine Learning · Computer Science 2026-05-08 Muhammad Shahir Abdurrahman , Chun Deng , Azalia Mirhoseini , Philip Levis

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…

Machine Learning · Computer Science 2025-09-30 Albus Yizhuo Li

Previous work on Universal Transformers (UTs) has demonstrated the importance of parameter sharing across layers. By allowing recurrence in depth, UTs have advantages over standard Transformers in learning compositional generalizations, but…

Machine Learning · Computer Science 2024-10-15 Róbert Csordás , Kazuki Irie , Jürgen Schmidhuber , Christopher Potts , Christopher D. Manning

Real-world model deployment across multiple domains requires multimodal models to operate under two complementary regimes: (1) multi-task pretraining, tasks are co-available at design time where related tasks could borrow representational…

Machine Learning · Computer Science 2026-05-12 Xing Han , Shravan Chaudhari , Tanvi Ranade , Rama Chellappa , Suchi Saria

By introducing routers to selectively activate experts in Transformer layers, the mixture-of-experts (MoE) architecture significantly reduces computational costs in large language models (LLMs) while maintaining competitive performance,…

Machine Learning · Computer Science 2026-02-10 Yukun Jiang , Hai Huang , Mingjie Li , Yage Zhang , Michael Backes , Yang Zhang

Standard LoRA fine-tuning of Mixture-of-Experts (MoE) models applies adapters to every expert, yet our profiling shows that per-layer expert routing is highly skewed: a small subset of experts handles most tokens in each layer, while many…

Machine Learning · Computer Science 2026-03-26 Andrea Manzoni

The emergence of Mixture of Experts (MoE) LLMs has significantly advanced the development of language models. Compared to traditional LLMs, MoE LLMs outperform traditional LLMs by achieving higher performance with considerably fewer…

Machine Learning · Computer Science 2024-11-05 Cheng Yang , Yang Sui , Jinqi Xiao , Lingyi Huang , Yu Gong , Yuanlin Duan , Wenqi Jia , Miao Yin , Yu Cheng , Bo Yuan

Standard Mixture-of-Experts (MoE) models rely on centralized routing mechanisms that introduce rigid inductive biases. We propose Routing-Free MoE which eliminates any hard-coded centralized designs including external routers, Softmax,…

Machine Learning · Computer Science 2026-04-02 Yilun Liu , Jinru Han , Sikuan Yan , Volker Tresp , Yunpu Ma

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…

Machine Learning · Computer Science 2026-05-01 Qingxiu Liu , Cyril Y. He , Hanser Jiang , Zion Wang , Alan Zhao , Patrick P. C. Lee

Mixture-of-experts (MoE) is becoming popular due to its success in improving the model quality, especially in Transformers. By routing tokens with a sparse gate to a few experts (i.e., a small pieces of the full model), MoE can easily…

Machine Learning · Computer Science 2022-10-11 Xiaonan Nie , Xupeng Miao , Shijie Cao , Lingxiao Ma , Qibin Liu , Jilong Xue , Youshan Miao , Yi Liu , Zhi Yang , Bin Cui

Large language models (LLMs) have demonstrated remarkable capabilities across a variety of tasks. One of the main challenges towards the successful deployment of LLMs is memory management, since they typically involve billions of…

Machine Learning · Computer Science 2025-09-03 Spyros Angelopoulos , Loris Marchal , Adrien Obrecht , Bertrand Simon

Mixture-of-Experts (MoE) has emerged as a promising paradigm for efficiently scaling large language models without a proportional increase in computational cost. However, the standard training strategy of Top-K router prevents MoE models…

Computation and Language · Computer Science 2025-10-01 Yaoxiang Wang , Qingguo Hu , Yucheng Ding , Ruizhe Wang , Yeyun Gong , Jian Jiao , Yelong Shen , Peng Cheng , Jinsong Su

Building mixture-of-experts (MoE) architecture for Low-rank adaptation (LoRA) is emerging as a potential direction in parameter-efficient fine-tuning (PEFT) for its modular design and remarkable performance. However, simply stacking the…

Machine Learning · Computer Science 2025-07-22 Jinyuan Feng , Zhiqiang Pu , Tianyi Hu , Dongmin Li , Xiaolin Ai , Huimu Wang

Quantum machine learning (QML) has emerged as a promising direction in the noisy intermediate-scale quantum (NISQ) era, offering computational and memory advantages by harnessing superposition and entanglement. However, QML models often…

Quantum Physics · Physics 2025-07-08 Hoang-Quan Nguyen , Xuan-Bac Nguyen , Sankalp Pandey , Samee U. Khan , Ilya Safro , Khoa Luu

Mixture-of-Experts (MoE) architectures face challenges such as high memory consumption and redundancy in experts. Pruning MoE can reduce network weights while maintaining model performance. Motivated by the recent observation of emergent…

Computation and Language · Computer Science 2024-10-17 Yanyue Xie , Zhi Zhang , Ding Zhou , Cong Xie , Ziang Song , Xin Liu , Yanzhi Wang , Xue Lin , An Xu

Mixture of Experts (MoE) models based on Transformer architecture are pushing the boundaries of language and vision tasks. The allure of these models lies in their ability to substantially increase the parameter count without a…

Mixture-of-Experts (MoE) models are widely used to scale language models, yet their expert routing behavior and adaptation in a multilingual setting remain underexplored. In this work, we study multilingual routing dynamics during continual…

Computation and Language · Computer Science 2026-05-29 Aditi Khandelwal , Marius Mosbach , Verna Dankers , Siva Reddy , Golnoosh Farnadi

Large Language Models (LLMs) are often English-centric due to the disproportionate distribution of languages in their pre-training data. Enhancing non-English language capabilities through post-pretraining often results in catastrophic…

Computation and Language · Computer Science 2024-08-22 Hao Zhou , Zhijun Wang , Shujian Huang , Xin Huang , Xue Han , Junlan Feng , Chao Deng , Weihua Luo , Jiajun Chen

Knowledge editing (KE) enables precise modifications to factual content in large language models (LLMs). Existing KE methods are largely designed for dense architectures, limiting their applicability to the increasingly prevalent sparse…

Machine Learning · Computer Science 2026-02-12 Yupu Gu , Rongzhe Wei , Andy Zhu , Pan Li