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Fine-tuning is a key approach for adapting language models to specific downstream tasks, but updating all model parameters becomes impractical as model sizes increase. Parameter-Efficient Fine-Tuning (PEFT) methods, such as Low-Rank…

Computation and Language · Computer Science 2025-02-10 Jiayang Yu , Yihang Zhang , Bin Wang , Peiqin Lin , Yongkang Liu , Shi Feng

Fine-tuning large-scale pre-trained models is prohibitively expensive in terms of computation and memory costs. Low-Rank Adaptation (LoRA), a popular Parameter-Efficient Fine-Tuning (PEFT) method, offers an efficient solution by optimizing…

Machine Learning · Computer Science 2025-05-27 Tao Li , Zhengbao He , Yujun Li , Yasheng Wang , Lifeng Shang , Xiaolin Huang

Large pre-trained language models are increasingly adapted to downstream tasks using parameter-efficient fine-tuning (PEFT), but existing PEFT methods are typically deterministic and unimodal, making them poorly suited for low-resource…

Machine Learning · Computer Science 2026-04-21 Habibeh Naderi , Behrouz Haji Soleimani , Stan Matwin

Parameter-efficient fine-tuning optimizes large, pre-trained foundation models by updating a subset of parameters; in this class, Low-Rank Adaptation (LoRA) is particularly effective. Inspired by an effort to investigate the different roles…

Pretrained equivariant graph neural networks based on spherical harmonics offer efficient and accurate alternatives to computationally expensive ab-initio methods, yet adapting them to new tasks and chemical environments still requires…

Machine Learning · Computer Science 2025-12-12 Dian Jin , Yancheng Yuan , Xiaoming Tao

Parameter-efficient fine-tuning (PEFT) has become a de facto standard for adapting Large Language Models (LLMs). However, we identify a critical vulnerability within popular low-rank adaptation methods like LoRA: their tendency to…

Computation and Language · Computer Science 2026-03-04 Yupeng Chang , Yi Chang , Yuan Wu

Low-Rank Adaptation (LoRA) emerges as a popular parameter-efficient fine-tuning (PEFT) method, which proposes to freeze pretrained model weights and update an additive low-rank trainable matrix. In this work, we study the enhancement of…

Machine Learning · Computer Science 2024-06-06 Fangzhao Zhang , Mert Pilanci

LiDAR bundle adjustment (BA) is an effective approach to reduce the drifts in pose estimation from the front-end. Existing works on LiDAR BA usually rely on predefined geometric features for landmark representation. This reliance restricts…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Xingyu Ji , Shenghai Yuan , Jianping Li , Pengyu Yin , Haozhi Cao , Lihua Xie

Adapting pre-trained foundation models for diverse downstream tasks is a core practice in artificial intelligence. However, the wide range of tasks and high computational costs make full fine-tuning impractical. To overcome this,…

Machine Learning · Computer Science 2025-06-27 Chongjie Si , Zhiyi Shi , Xuehui Wang , Yichen Xiao , Xiaokang Yang , Wei Shen

Self-supervised adaptation (SSA) improves foundation model transfer to medical domains but is computationally prohibitive. Although parameter efficient fine-tuning methods such as LoRA have been explored for supervised adaptation, their…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Moein Sorkhei , Emir Konuk , Jingyu Guo , Chanjuan Meng , Christos Matsoukas , Kevin Smith

Unsupervised domain adaptation (UDA) has achieved unprecedented success in improving the cross-domain robustness of object detection models. However, existing UDA methods largely ignore the instantaneous data distribution during model…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Zongxian Li , Qixiang Ye , Chong Zhang , Jingjing Liu , Shijian Lu , Yonghong Tian

Parameter-efficient finetuning (PEFT) aims to mitigate the substantial computational and memory overhead involved in adapting large-scale pretrained models to diverse downstream tasks. Among numerous PEFT strategies, Low-Rank Adaptation…

Artificial Intelligence · Computer Science 2025-10-10 Xiaoshuang Ji , Zhendong Zhao , Xiaoyan Gu , Xiaojun Chen , Xin Zhao , Zeyao Liu

Low-rank adaptation~(LoRA) has recently gained much interest in fine-tuning foundation models. It effectively reduces the number of trainable parameters by incorporating low-rank matrices $A$ and $B$ to represent the weight change, i.e.,…

Machine Learning · Computer Science 2024-05-07 Ziqi Gao , Qichao Wang , Aochuan Chen , Zijing Liu , Bingzhe Wu , Liang Chen , Jia Li

Parameter-efficient fine-tuning (PEFT) has emerged as a scalable solution for adapting large foundation models. While low-rank adaptation (LoRA) is widely used in speech applications, its state-of-the-art variants, e.g., VeRA, DoRA, PiSSA,…

Computation and Language · Computer Science 2025-09-04 Pu Wang , Shinji Watanabe , Hugo Van hamme

Parameter-efficient tuning (PEFT) techniques like low-rank adaptation (LoRA) offer training efficiency on Large Language Models, but their impact on model performance remains limited. Recent efforts integrate LoRA and Mixture-of-Experts…

Computation and Language · Computer Science 2024-02-14 Chongyang Gao , Kezhen Chen , Jinmeng Rao , Baochen Sun , Ruibo Liu , Daiyi Peng , Yawen Zhang , Xiaoyuan Guo , Jie Yang , VS Subrahmanian

Vision-language models (VLMs) such as CLIP and Grounding DINO have achieved remarkable success in object recognition and detection. However, their performance often degrades under real-world distribution shifts. Test-time adaptation (TTA)…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Lihua Zhou , Mao Ye , Shuaifeng Li , Nianxin Li , Jinlin Wu , Xiatian Zhu , Lei Deng , Hongbin Liu , Jiebo Luo , Zhen Lei

Low-Rank Adaptation (LoRA) has emerged as a widely adopted parameter-efficient fine-tuning (PEFT) technique for foundation models. Recent work has highlighted an inherent asymmetry in the initialization of LoRA's low-rank factors, which has…

Machine Learning · Statistics 2025-06-18 Anastasis Kratsios , Tin Sum Cheng , Aurelien Lucchi , Haitz Sáez de Ocáriz Borde

Large Language Models (LLMs) have achieved remarkable progress, with Parameter-Efficient Fine-Tuning (PEFT) emerging as a key technique for downstream task adaptation. However, existing PEFT methods mainly operate in Euclidean space,…

Machine Learning · Computer Science 2026-02-17 Buze Zhang , Jinkai Tao , Zilang Zeng , Neil He , Ali Maatouk , Menglin Yang , Rex Ying

Foundation models (FMs) are pre-trained on large-scale datasets and then fine-tuned for a specific downstream task. The most common fine-tuning method is to update pretrained weights via low-rank adaptation (LoRA). Existing initialization…

Machine Learning · Computer Science 2025-10-21 Fabian Paischer , Lukas Hauzenberger , Thomas Schmied , Benedikt Alkin , Marc Peter Deisenroth , Sepp Hochreiter

Fine-tuning is widely used to tailor large language models for specific tasks such as neural machine translation (NMT). However, leveraging transfer learning is computationally expensive when fine-tuning large multilingual models with…

Computation and Language · Computer Science 2025-10-22 Josh McGiff , Nikola S. Nikolov