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Large Language Models (LLMs) have demonstrated remarkable capabilities across various fields, from natural language understanding to text generation. Compared to non-generative LLMs like BERT and DeBERTa, generative LLMs like GPT series and…

Hardware Architecture · Computer Science 2025-06-16 Jinhao Li , Jiaming Xu , Shan Huang , Yonghua Chen , Wen Li , Jun Liu , Yaoxiu Lian , Jiayi Pan , Li Ding , Hao Zhou , Yu Wang , Guohao Dai

Large Language Models (LLMs) typically generate outputs token by token using a fixed compute budget, leading to inefficient resource utilization. To address this shortcoming, recent advancements in mixture of expert (MoE) models,…

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) Large Language Models (LLMs) face a trilemma of load imbalance, parameter redundancy, and communication overhead. We introduce a unified framework based on dynamic expert clustering and structured compression to…

Computation and Language · Computer Science 2026-02-06 Peijun Zhu , Ning Yang , Baoliang Tian , Jiayu Wei , Weihao Zhang , Haijun Zhang , Pin Lv

There is a rapidly growing number of open-source Large Language Models (LLMs) and benchmark datasets to compare them. While some models dominate these benchmarks, no single model typically achieves the best accuracy in all tasks and use…

Computation and Language · Computer Science 2023-09-28 Tal Shnitzer , Anthony Ou , Mírian Silva , Kate Soule , Yuekai Sun , Justin Solomon , Neil Thompson , Mikhail Yurochkin

Most recent state-of-the-art (SOTA) large language models (LLMs) use Mixture-of-Experts (MoE) architectures to scale model capacity without proportional per-token compute, enabling higher-quality outputs at manageable serving costs.…

While large language models (LLMs) fine-tuned with lightweight adapters achieve strong performance across diverse tasks, their performance on individual tasks depends on the fine-tuning strategy. Fusing independently trained models with…

Machine Learning · Computer Science 2026-03-05 Sanae Lotfi , Lucas Caccia , Alessandro Sordoni , Jordan T. Ash , Miroslav Dudik

Competency modeling is widely used in human resource management to select, develop, and evaluate talent. However, traditional expert-driven approaches rely heavily on manual analysis of large volumes of interview transcripts, making them…

Computation and Language · Computer Science 2026-02-16 Silin Du , Manqing Xin , Raymond Jia Wang

The answering quality of an aligned large language model (LLM) can be drastically improved if treated with proper crafting of prompts. In this paper, we propose ExpertPrompting to elicit the potential of LLMs to answer as distinguished…

Computation and Language · Computer Science 2025-03-06 Benfeng Xu , An Yang , Junyang Lin , Quan Wang , Chang Zhou , Yongdong Zhang , Zhendong Mao

Mixture-of-Experts (MoE) language models organize knowledge into explicitly routed expert modules, making expert-level representations traceable and analyzable. By analyzing expert activation patterns in MoE large language models (LLMs), we…

Computation and Language · Computer Science 2026-05-12 Chang Liu , Boyu Shi , Xu Yang , Xin Geng

Retrieval-Augmented Generation (RAG) significantly improves the performance of Large Language Models (LLMs) on knowledge-intensive tasks. However, varying response quality across LLMs under RAG necessitates intelligent routing mechanisms,…

Computation and Language · Computer Science 2025-10-20 Jiarui Zhang , Xiangyu Liu , Yong Hu , Chaoyue Niu , Fan Wu , Guihai Chen

Mixture-of-Experts (MoE) architectures have shown strong multilingual capabilities, yet the internal mechanisms underlying performance gains and cross-language differences remain insufficiently understood. In this work, we conduct a…

Computation and Language · Computer Science 2026-01-21 Yuxin Chen , Zhengzhou Cai , Xiangtian Ji , Weixiang Zhao , An Zhang , Xiang Wang , Tat-Seng Chua

A pivotal advancement in the progress of large language models (LLMs) is the emergence of the Mixture-of-Experts (MoE) LLMs. Compared to traditional LLMs, MoE LLMs can achieve higher performance with fewer parameters, but it is still hard…

Computation and Language · Computer Science 2024-05-31 Xudong Lu , Qi Liu , Yuhui Xu , Aojun Zhou , Siyuan Huang , Bo Zhang , Junchi Yan , Hongsheng Li

Large language model (LLM) routing assigns each query to the most suitable model from an ensemble. We introduce LLMRouterBench, a large-scale benchmark and unified framework for LLM routing. It comprises over 400K instances from 21 datasets…

Artificial Intelligence · Computer Science 2026-01-13 Hao Li , Yiqun Zhang , Zhaoyan Guo , Chenxu Wang , Shengji Tang , Qiaosheng Zhang , Yang Chen , Biqing Qi , Peng Ye , Lei Bai , Zhen Wang , Shuyue Hu

Recently, large language models (LLMs) have been successfully applied to many fields, showing outstanding comprehension and reasoning capabilities. Despite their great potential, LLMs usually require dedicated pre-training and fine-tuning…

Networking and Internet Architecture · Computer Science 2024-12-31 Hao Zhou , Chengming Hu , Dun Yuan , Ye Yuan , Di Wu , Xi Chen , Hina Tabassum , Xue Liu

Training large, general-purpose language models poses significant challenges. The growing availability of specialized expert models, fine-tuned from pretrained models for specific tasks or domains, offers a promising alternative. Leveraging…

Computation and Language · Computer Science 2025-08-19 William Fleshman , Benjamin Van Durme

Large language models (LLMs) have demonstrated exceptional performance across a variety of tasks. However, their substantial scale leads to significant computational resource consumption during inference, resulting in high costs.…

Machine Learning · Computer Science 2025-06-13 Zhaode Wang , Jingbang Yang , Xinyu Qian , Shiwen Xing , Xiaotang Jiang , Chengfei Lv , Shengyu Zhang

While large language models (LLMs) excel on generation tasks, their decoder-only architecture often limits their potential as embedding models if no further representation finetuning is applied. Does this contradict their claim of…

Computation and Language · Computer Science 2024-10-17 Ziyue Li , Tianyi Zhou

Large Language Models (LLMs) deliver state-of-the-art performance across many tasks but impose high computational and memory costs, limiting their deployment in resource-constrained or real-time settings. To address this, we propose…

Computation and Language · Computer Science 2025-11-14 Nikunj Gupta , Bill Guo , Rajgopal Kannan , Viktor K. Prasanna

LLM routing aims to achieve a favorable quality--cost trade-off by dynamically assigning easy queries to smaller models and harder queries to stronger ones. However, across both unimodal and multimodal settings, we uncover a pervasive yet…

Artificial Intelligence · Computer Science 2026-02-04 Guannan Lai , Han-Jia Ye