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Fine-tuning Large Language Models (LLMs) is a common practice to adapt pre-trained models for specific applications. While methods like LoRA have effectively addressed GPU memory constraints during fine-tuning, their performance often falls…

Computation and Language · Computer Science 2024-07-23 Dengchun Li , Yingzi Ma , Naizheng Wang , Zhengmao Ye , Zhiyuan Cheng , Yinghao Tang , Yan Zhang , Lei Duan , Jie Zuo , Cal Yang , Mingjie Tang

As the capabilities of large language models (LLMs) continue to expand, aligning these models with human values remains a significant challenge. Recent studies show that reasoning abilities contribute significantly to model safety, while…

Computation and Language · Computer Science 2025-06-03 Zhili Liu , Yunhao Gou , Kai Chen , Lanqing Hong , Jiahui Gao , Fei Mi , Yu Zhang , Zhenguo Li , Xin Jiang , Qun Liu , James T. Kwok

Sparse Mixture-of-Experts (SMoE) models represent a significant advancement in large language model (LLM) development through their efficient parameter utilization. These models achieve substantial performance improvements at reduced…

Machine Learning · Computer Science 2025-10-28 I-Chun Chen , Hsu-Shen Liu , Wei-Fang Sun , Chen-Hao Chao , Yen-Chang Hsu , Chun-Yi Lee

By increasing model parameters but activating them sparsely when performing a task, the use of Mixture-of-Experts (MoE) architecture significantly improves the performance of Large Language Models (LLMs) without increasing the inference…

Computation and Language · Computer Science 2025-06-10 Zeliang Zhang , Xiaodong Liu , Hao Cheng , Chenliang Xu , Jianfeng Gao

Mixture of Experts (MoEs) are now ubiquitous in large language models, yet the mechanisms behind their "expert specialization" remain poorly understood. We show that, since MoE routers are linear maps, hidden state similarity is both…

Artificial Intelligence · Computer Science 2026-04-14 Xi Wang , Soufiane Hayou , Eric Nalisnick

Expert specialization in Mixture-of-Experts (MoE) models remains poorly understood, with traditional evaluations conflating architectural load-balancing with functional specialization. We introduce DBES, a comprehensive diagnostic framework…

Machine Learning · Computer Science 2026-05-19 Jing Wang , Hongxuan Lu , Jazze Young , Shu Wang , Zhimin Xin

In deep learning, mixture-of-experts (MoE) activates one or few experts (sub-networks) on a per-sample or per-token basis, resulting in significant computation reduction. The recently proposed \underline{p}atch-level routing in…

Machine Learning · Computer Science 2023-07-10 Mohammed Nowaz Rabbani Chowdhury , Shuai Zhang , Meng Wang , Sijia Liu , Pin-Yu Chen

Mixture-of-Experts (MoE) architectures have emerged as a powerful paradigm for scaling neural networks while maintaining computational efficiency. However, standard MoE implementations rely on two rigid design assumptions: (1) fixed Top-K…

Machine Learning · Computer Science 2026-03-03 Gökdeniz Gülmez

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

Mixture-of-Experts (MoE) architectures scale Large Language Models via expert specialization induced by conditional computation. In practice, however, expert specialization often fails: some experts become functionally similar, while others…

Recent advances in reinforcement learning (RL) have substantially improved the training of large-scale language models, leading to significant gains in generation quality and reasoning ability. However, most existing research focuses on…

Machine Learning · Computer Science 2026-01-13 Di Zhang , Xun Wu , Shaohan Huang , Lingjie Jiang , Yaru Hao , Li Dong , Zewen Chi , Zhifang Sui , Furu Wei

Large language models (LLMs) require continual knowledge updates to stay abreast of the ever-changing world facts, prompting the formulation of lifelong model editing task. While recent years have witnessed the development of various…

Computation and Language · Computer Science 2024-07-01 Renzhi Wang , Piji Li

Mixture-of-Experts (MoE) has become a prevalent backbone for large vision-language models (VLMs), yet how modality-specific signals should guide expert routing remains under-explored. Existing routing strategies are either hand-crafted or…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Zi-Hao Bo , Yaqian Li , Anzhou Hou , Rinyoichi Takezoe , Ertao Zhao , Tianxiang Pan , Jiale Yan , Mo Guang , Kaiwen Long

Description-based text-to-speech (TTS) models exhibit strong performance on in-domain text descriptions, i.e., those encountered during training. However, in real-world applications, the diverse range of user-generated descriptions…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-18 Heyang Xue , Xuchen Song , Yu Tang , Jianyu Chen , Yanru Chen , Yang Li , Yahui Zhou

Large Language Models (LLMs) have achieved remarkable results. However, existing models are expensive to train and deploy, and it is also difficult to expand their knowledge beyond pre-training data without forgetting previous knowledge.…

Computation and Language · Computer Science 2023-09-13 Yikang Shen , Zheyu Zhang , Tianyou Cao , Shawn Tan , Zhenfang Chen , Chuang Gan

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

In this technical report, we introduce the training methodologies implemented in the development of Skywork-MoE, a high-performance mixture-of-experts (MoE) large language model (LLM) with 146 billion parameters and 16 experts. It is…

The sparse Mixture-of-Experts (MoE) architecture of large language models (LLMs) confronts an inherent issue of load imbalance arising from the simplistic linear router strategy, which ultimately causes the instability and inefficient…

Machine Learning · Computer Science 2025-11-25 Ting Bai , Yue Yu , Le Huang , Zenan Xu , Chuan Shi

Mixture-of-Experts (MoE) models have become a key approach for scaling large language models efficiently by activating only a subset of experts during training and inference. Typically, the number of activated experts presents a trade-off:…

Machine Learning · Computer Science 2025-09-04 Yifei He , Yang Liu , Chen Liang , Hany Hassan Awadalla

High inter-class similarity, extreme scale variation, and limited computational budgets hinder reliable visual recognition across diverse real-world data. Existing vision-centric and cross-modal approaches often rely on rigid fusion…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Qinghui Chen , Zekai Zhang , Zaigui Zhang , Kai Zhang , Dagang Li , Wenmin Wang , Jinglin Zhang , Cong Liu