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Federated Parameter-Efficient Fine-Tuning (Fed-PEFT) enables lightweight adaptation of large pre-trained models in federated learning settings by updating only a small subset of parameters. However, Fed-PEFT methods typically assume a fixed…

Machine Learning · Computer Science 2026-04-13 Feng Yu , Jia Hu , Geyong Min

Providing high-quality feedback to Large Language Models (LLMs) on a diverse training distribution can be difficult and expensive, and providing feedback only on a narrow distribution can result in unintended generalizations. To better…

Computation and Language · Computer Science 2026-03-02 Constanza Fierro , Fabien Roger

During the training of Large Language Models (LLMs), tensor data is periodically "checkpointed" to persistent storage to allow recovery of work done in the event of failure. The volume of data that must be copied during each checkpoint,…

Machine Learning · Computer Science 2025-05-16 Daniel Waddington , Cornel Constantinescu

Post-training weight quantization is crucial for reducing the memory and inference cost of large language models (LLMs), yet pushing the average precision below 4 bits remains challenging due to highly non-uniform weight sensitivity and the…

Machine Learning · Computer Science 2026-02-23 Xinlin Li , Timothy Chou , Josh Fromm , Zichang Liu , Yunjie Pan , Christina Fragouli

As Large Language Models (LLMs) continue to grow in size, storing and transmitting them on edge devices becomes increasingly challenging. Traditional methods like quantization and pruning struggle to achieve extreme compression of LLMs…

Machine Learning · Computer Science 2025-11-25 Ye Tian , Chengcheng Wang , Jing Han , Yehui Tang , Kai Han

As large language models (LLMs) continue to scale in size, the computational overhead has become a major bottleneck for task-specific fine-tuning. While low-rank adaptation (LoRA) effectively curtails this cost by confining the weight…

Machine Learning · Computer Science 2026-05-15 Yilang Zhang , Xiaodong Yang , Yiwei Cai , Georgios B. Giannakis

Current LLM structured pruning methods typically involve two steps: (1) compression with calibration data and (2) costly continued pretraining on billions of tokens to recover lost performance. This second step is necessary as the first…

Machine Learning · Computer Science 2024-12-31 Yaya Sy , Christophe Cerisara , Irina Illina

The post-training phase of large language models is essential for enhancing capabilities such as instruction-following, reasoning, and alignment with human preferences. However, it demands extensive high-quality data and poses risks like…

Computation and Language · Computer Science 2026-03-04 Sheng Cao , Mingrui Wu , Karthik Prasad , Yuandong Tian , Zechun Liu

Pretrained Language Models (PLMs) have become the de facto starting point for fine-tuning on downstream tasks. However, as model sizes continue to increase, traditional fine-tuning of all the parameters becomes challenging. To address this,…

Machine Learning · Computer Science 2024-07-16 Bharat Runwal , Tejaswini Pedapati , Pin-Yu Chen

Standard fine-tuning of large pre-trained language models (PLMs) for downstream tasks requires updating hundreds of millions to billions of parameters, and storing a large copy of the PLM weights for every task resulting in increased cost…

Computation and Language · Computer Science 2022-11-03 Yaqing Wang , Sahaj Agarwal , Subhabrata Mukherjee , Xiaodong Liu , Jing Gao , Ahmed Hassan Awadallah , Jianfeng Gao

Standard fine-tuning of large pre-trained language models (PLMs) for downstream tasks requires updating hundreds of millions to billions of parameters, and storing a large copy of the PLM weights for every task resulting in increased cost…

Computation and Language · Computer Science 2022-11-07 Yaqing Wang , Sahaj Agarwal , Subhabrata Mukherjee , Xiaodong Liu , Jing Gao , Ahmed Hassan Awadallah , Jianfeng Gao

Federated fine-tuning (FFT) attempts to fine-tune a pre-trained model with private data from distributed clients by exchanging models rather than data under the orchestration of a parameter server (PS). To overcome the bottleneck forged by…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-01 Zhijie Cai , Haolong Chen , Guangxu Zhu

Supervised Fine-Tuning (SFT) empowers Large Language Models (LLMs) with exceptional performance on specialized tasks, but it yields dense, high-dimensional delta parameters that pose severe storage and distribution challenges. Singular…

Machine Learning · Computer Science 2026-02-17 Boya Xiong , Shuo Wang , Weifeng Ge , Guanhua Chen , Yun Chen

Model editing techniques modify a minor proportion of knowledge in Large Language Models (LLMs) at a relatively low cost, which have demonstrated notable success. Existing methods assume Transformer Layer (TL) hidden states are values of…

Computation and Language · Computer Science 2024-03-12 Xiaopeng Li , Shasha Li , Shezheng Song , Jing Yang , Jun Ma , Jie Yu

Dynamic evaluation of language models (LMs) adapts model parameters at test time using gradient information from previous tokens and substantially improves LM performance. However, it requires over 3x more compute than standard inference.…

Computation and Language · Computer Science 2022-12-06 Kevin Clark , Kelvin Guu , Ming-Wei Chang , Panupong Pasupat , Geoffrey Hinton , Mohammad Norouzi

Model quantification uses low bit-width values to represent the weight matrices of existing models to be quantized, which is a promising approach to reduce both storage and computational overheads of deploying highly anticipated LLMs.…

Computation and Language · Computer Science 2024-12-02 Yuzhuang Xu , Xu Han , Zonghan Yang , Shuo Wang , Qingfu Zhu , Zhiyuan Liu , Weidong Liu , Wanxiang Che

Large Language Models (LLMs) are regularly updated to enhance performance, typically through changes in data or architecture. Within the update process, developers often prioritize improving overall performance metrics, paying less…

Artificial Intelligence · Computer Science 2024-10-07 Jessica Echterhoff , Fartash Faghri , Raviteja Vemulapalli , Ting-Yao Hu , Chun-Liang Li , Oncel Tuzel , Hadi Pouransari

Fine-tuning large language models (LLMs) for downstream tasks often leads to catastrophic forgetting, notably degrading the safety of originally aligned models. While some existing methods attempt to restore safety by incorporating…

Computation and Language · Computer Science 2025-08-29 Hua Farn , Hsuan Su , Shachi H Kumar , Saurav Sahay , Shang-Tse Chen , Hung-yi Lee

Most previous methods for text data augmentation are limited to simple tasks and weak baselines. We explore data augmentation on hard tasks (i.e., few-shot natural language understanding) and strong baselines (i.e., pretrained models with…

Computation and Language · Computer Science 2022-03-16 Jing Zhou , Yanan Zheng , Jie Tang , Jian Li , Zhilin Yang

Large Vision-Language Models typically require large text and image datasets for effective fine-tuning. However, collecting data from various sites, especially in healthcare, is challenging due to strict privacy regulations. An alternative…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Pramit Saha , Divyanshu Mishra , Felix Wagner , Konstantinos Kamnitsas , J. Alison Noble