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This paper presents a systematic overview of parameter-efficient fine-tuning methods, covering over 50 papers published between early 2019 and mid-2024. These methods aim to address the challenges of fine-tuning large language models by…

Computation and Language · Computer Science 2024-11-25 Vladislav Lialin , Vijeta Deshpande , Xiaowei Yao , Anna Rumshisky

Parameter-efficient fine-tuning (PEFT) has become a common method for fine-tuning large language models, where a base model can serve multiple users through PEFT module switching. To enhance user experience, base models require periodic…

Computation and Language · Computer Science 2025-06-10 Naibin Gu , Peng Fu , Xiyu Liu , Ke Ma , Zheng Lin , Weiping Wang

Parameter-efficient fine-tuning methods like Low-Rank Adaptation (LoRA) have become essential for deploying large language models, yet their static parameter allocation remains suboptimal for inputs of varying complexity. We present…

Machine Learning · Computer Science 2026-05-05 Zongqian Li , Yixuan Su , Han Zhou , Zihao Fu , Nigel Collier

As large language models (LLMs) continue to grow, the cost of full-parameter fine-tuning has made parameter-efficient fine-tuning (PEFT) the default strategy for downstream adaptation. Constraints from inference latency in scalable serving…

Machine Learning · Computer Science 2026-02-10 Yichen Xu , Yuyang Liang , Shan Dai , Tianyang Hu , Tsz Nam Chan , Chenhao Ma

We propose Tensor-Trained Low-Rank Adaptation Mixture of Experts (TT-LoRA MoE), a novel computational framework integrating Parameter-Efficient Fine-Tuning (PEFT) with sparse MoE routing to address scalability challenges in large model…

Machine Learning · Computer Science 2026-01-27 Pradip Kunwar , Minh N. Vu , Maanak Gupta , Mahmoud Abdelsalam , Manish Bhattarai

Parameter-efficient fine-tuning (PEFT) techniques have unlocked the potential to cheaply and easily specialize large pretrained models. However, the most prominent approaches, like low-rank adapters (LoRA), depend on heuristics or…

Machine Learning · Computer Science 2025-04-08 Wenxuan Tan , Nicholas Roberts , Tzu-Heng Huang , Jitian Zhao , John Cooper , Samuel Guo , Chengyu Duan , Frederic Sala

Continual learning requires the model to learn multiple tasks sequentially. In continual learning, the model should possess the ability to maintain its performance on old tasks (stability) and the ability to adapt to new tasks continuously…

Machine Learning · Computer Science 2024-04-04 Yan-Shuo Liang , Wu-Jun Li

Fine-tuning Large Language Models (LLMs) has become increasingly challenging due to their massive scale and associated computational costs. Parameter-Efficient Fine-Tuning (PEFT) methodologies have been proposed as computational…

Computation and Language · Computer Science 2025-05-22 Jialong Han , Si Zhang , Ke Zhang

In recent years, Parameter-Efficient Fine-Tuning (PEFT) methods like Low-Rank Adaptation (LoRA) have significantly enhanced the adaptability of large-scale pre-trained models. Weight-Decomposed Low-Rank Adaptation (DoRA) improves upon LoRA…

Computation and Language · Computer Science 2024-12-10 Qiushi Wang , Yuchen Fan , Junwei Bao , Hongfei Jiang , Yang Song

Parameter-Efficient Fine-Tuning (PEFT) techniques, particularly Low-Rank Adaptation (LoRA), have become essential for adapting Large Language Models (LLMs) to downstream tasks. While the recent FlyLoRA framework successfully leverages…

Machine Learning · Computer Science 2026-03-16 Yuxin Yang , Haoran Zhang , Mingxuan Li , Jiachen Xu , Ruoxi Shen , Zhenyu Wang , Tianhao Liu , Siqi Chen , Weilin Huang

Low-Rank Adaptation (LoRA) is a widely adopted parameter-efficient fine-tuning (PEFT) method for Large Language Models (LLMs), but it still incurs notable overhead and suffers from parameter interference in complex datasets. While recent…

Computation and Language · Computer Science 2025-12-19 Chunlin Tian , Xuyang Wei , Huanrong Liu , Zhijiang Guo , Li Li

An old-school recipe for training a classifier is to (i) learn a good feature extractor and (ii) optimize a linear layer atop. When only a handful of samples are available per category, as in Few-Shot Adaptation (FSA), data are insufficient…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Matteo Farina , Massimiliano Mancini , Giovanni Iacca , Elisa Ricci

Parameter-efficient fine-tuning (PEFT) reduces the training cost of full-parameter fine-tuning for large language models (LLMs) by training only a small set of task-specific parameters while freezing the pretrained backbone. However,…

Computation and Language · Computer Science 2026-04-22 Xianming Li , Zongxi Li , Tsz-fung Andrew Lee , Jing Li , Haoran Xie , Qing Li

Large models represent a groundbreaking advancement in multiple application fields, enabling remarkable achievements across various tasks. However, their unprecedented scale comes with significant computational costs. These models, often…

Machine Learning · Computer Science 2024-09-17 Zeyu Han , Chao Gao , Jinyang Liu , Jeff Zhang , Sai Qian Zhang

The rapid growth in the parameter size of Large Language Models (LLMs) has spurred the development of Parameter-Efficient Fine-Tuning (PEFT) methods to mitigate the substantial computational costs of fine-tuning. Among these, Fisher Induced…

Computation and Language · Computer Science 2025-05-27 Kang Xue , Ming Dong , Xinhui Tu , Tingting He

Parameter-efficient fine-tuning techniques like Low-Rank Adaptation (LoRA) have revolutionized the adaptation of large language models (LLMs) to diverse tasks. Recent efforts have explored mixtures of LoRA modules for multi-task settings.…

Computation and Language · Computer Science 2024-08-06 Lin Ning , Harsh Lara , Meiqi Guo , Abhinav Rastogi

Explorations in fine-tuning Vision-Language Models (VLMs), such as Low-Rank Adaptation (LoRA) from Parameter Efficient Fine-Tuning (PEFT), have made impressive progress. However, most approaches rely on explicit weight updates, overlooking…

Machine Learning · Computer Science 2025-12-30 Mingyuan Zhang , Yue Bai , Yifan Wang , Yiyang Huang , Yun Fu

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

Pre-trained Language Models (PLMs) have demonstrated their superiority and versatility in modern Natural Language Processing (NLP), effectively adapting to various downstream tasks through further fine-tuning. Federated Parameter-Efficient…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-19 Fei Wu , Jia Hu , Geyong Min , Shiqiang Wang

Parameter-Efficient Fine-Tuning (PEFT), especially Low-Rank Adaptation (LoRA), has emerged as a promising approach to fine-tuning large language models(LLMs) while reducing computational and memory overhead. However, LoRA assumes a uniform…

Machine Learning · Computer Science 2025-12-15 Hao Zhang , Zhenjia Li , Runfeng Bao , Yifan Gao , Xi Xiao , Heng Zhang , Shuyang Zhang , Bo Huang , Yuhang Wu , Tianyang Wang , Hao Xu