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Despite the efficacy of network sparsity in alleviating the deployment strain of Large Language Models (LLMs), it endures significant performance degradation. Applying Low-Rank Adaptation (LoRA) to fine-tune the sparse LLMs offers an…

机器学习 · 计算机科学 2025-02-21 Weizhong Huang , Yuxin Zhang , Xiawu Zheng , Yang Liu , Jing Lin , Yiwu Yao , Rongrong Ji

Autoregressive large language models (LLMs) are bottlenecked by sequential decoding, where each new token typically requires executing all transformer layers. Existing dynamic-depth and layer-skipping methods reduce this cost, but often…

计算与语言 · 计算机科学 2026-01-07 Hossein Rajabzadeh , Maryam Dialameh , Chul B. Park , Il-Min Kim , Hyock Ju Kwon

Low-Rank Adaptation (LoRA), which leverages the insight that model updates typically reside in a low-dimensional space, has significantly improved the training efficiency of Large Language Models (LLMs) by updating neural network layers…

机器学习 · 计算机科学 2026-05-01 Han Liu , Shanghao Shi , Yevgeniy Vorobeychik , Chongjie Zhang , Ning Zhang

We introduce Tied-LoRA, a novel paradigm leveraging weight tying and selective training to enhance the parameter efficiency of Low-rank Adaptation (LoRA). Our exploration encompasses different plausible combinations of parameter training…

计算与语言 · 计算机科学 2024-04-16 Adithya Renduchintala , Tugrul Konuk , Oleksii Kuchaiev

Low-Rank Adaptation (LoRA) has become a widely adopted parameter-efficient fine-tuning method for large language models, with its effectiveness largely influenced by the allocation of ranks and scaling factors, as well as initialization.…

计算与语言 · 计算机科学 2026-04-21 Weicheng Lin , Yi Zhang , Jiawei Dang , Liang-Jie Zhang

The scaling law of Large Language Models (LLMs) reveals a power-law relationship, showing diminishing return on performance as model scale increases. While training LLMs from scratch is resource-intensive, fine-tuning a pre-trained model…

计算与语言 · 计算机科学 2025-05-22 Yiyun Zhou , Chang Yao , Jingyuan Chen

Fine-tuning large language models (LLMs) is computationally intensive because it requires updating all parameters. Low-Rank Adaptation (LoRA) improves efficiency by modifying only a subset of weights but introduces a trade-off between…

机器学习 · 计算机科学 2024-12-19 Abdessalam Ed-dib , Zhanibek Datbayev , Amine Mohamed Aboussalah

While orthogonal subspace methods try to mitigate task interference in Continual Learning (CL), they often suffer from energy diffusion across the basis, hindering knowledge compaction and exhausting capacity for future tasks. We observe…

机器学习 · 计算机科学 2026-05-28 Longhua Li , Lei Qi , Qi Tian , Xin Geng

Low-rank adaptation (LoRA) offers an efficient alternative to full-weight adaptation in federated fine-tuning of language models, significantly reducing computational costs. By adjusting ranks for each client, federated LoRA enables…

分布式、并行与集群计算 · 计算机科学 2025-02-18 Yuji Byun , Jaeho Lee

Parameter-efficient fine-tuning methods like Low-Rank Adaptation (LoRA) have become the dominant paradigm for adapting large pretrained models. We present a theoretical framework explaining an underexplored property: LoRA's inherent…

机器学习 · 计算机科学 2026-02-03 Brady Steele

Large Language Models (LLMs) have demonstrated remarkable capabilities across various domains, particularly in task generalization for both text and vision data. While fine-tuning these models can significantly enhance their performance on…

机器学习 · 计算机科学 2025-01-15 Navyansh Mahla , Kshitij Sharad Jadhav , Ganesh Ramakrishnan

Low-rank adaptation (LoRA) is a widely used parameter-efficient fine-tuning method, yet its learned correction is static: the same low-rank update is applied to every input. This input-agnostic approach creates an inevitable compromise…

机器学习 · 计算机科学 2026-05-20 Ali Zindari , Xiaowen Jiang , Rotem Mulayoff , Sebastian U. Stich

Vision-Language-Action (VLA) models such as OpenVLA, Octo, and $\pi_0$ have shown strong generalization by leveraging large-scale demonstrations, yet their performance is still fundamentally constrained by the quality and coverage of…

机器学习 · 计算机科学 2025-10-14 Mingyang Lyu , Yinqian Sun , Erliang Lin , Huangrui Li , Ruolin Chen , Feifei Zhao , Yi Zeng

Low-Rank Adaptation (LoRA) has gained popularity for fine-tuning large foundation models, leveraging low-rank matrices $\mathbf{A}$ and $\mathbf{B}$ to represent weight changes (i.e., $\Delta \mathbf{W} = \mathbf{B} \mathbf{A}$). This…

机器学习 · 计算机科学 2025-07-02 Aochuan Chen , Jiashun Cheng , Zijing Liu , Ziqi Gao , Fugee Tsung , Yu Li , Jia Li

Low-rank adaption (LoRA) is a representative method in the field of parameter-efficient fine-tuning (PEFT), and is key to Democratizating the modern large language models (LLMs). The vanilla LoRA is implemented with uniform ranks, and the…

计算与语言 · 计算机科学 2026-01-27 Yi Zhao , Qinghua Yao , Xinyuan song , Wei Zhu

Low-Rank Adaptation (LoRA) has become the standard for fine-tuning large pre-trained models at reduced computational cost. However, its low-rank point-estimate updates limit expressiveness, leave a persistent gap relative to full…

机器学习 · 计算机科学 2026-05-12 Dario Coscia , Sindy Löwe , Max Welling

Despite its huge number of variants, standard Low-Rank Adaptation (LoRA) is still a dominant technique for parameter-efficient fine-tuning (PEFT). Nonetheless, it faces persistent challenges, including the pre-selection of an optimal rank…

计算与语言 · 计算机科学 2026-02-20 Ivan Vulić , Adam Grycner , Quentin de Laroussilhe , Jonas Pfeiffer

In this paper, we propose SubLoRA, a rank determination method for Low-Rank Adaptation (LoRA) based on submodular function maximization. In contrast to prior approaches, such as AdaLoRA, that rely on first-order (linearized) approximations…

机器学习 · 计算机科学 2025-07-03 Yihang Gao , Vincent Y. F. Tan

Pre-training on a source task is usually expected to facilitate fine-tuning on similar downstream problems. In this work, we mathematically show that this naive intuition is not always true: excessive pre-training can computationally slow…

机器学习 · 计算机科学 2026-05-28 Gibbs Nwemadji , Bruno Loureiro , Jean Barbier

Low Rank Approximation (LRA) of a matrix is a hot research subject, fundamental for Matrix and Tensor Computations and Big Data Mining and Analysis. Computations with low rank matrices can be performed at sublinear cost -- by using much…

数值分析 · 数学 2025-08-11 Qi Luan , Victor Y. Pan , John Svadlenka , Liang Zhao