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Large models adaptation through Federated Learning (FL) addresses a wide range of use cases and is enabled by Parameter-Efficient Fine-Tuning techniques such as Low-Rank Adaptation (LoRA). However, this distributed learning paradigm faces…

Machine Learning · Computer Science 2026-02-19 Bastien Vuillod , Pierre-Alain Moellic , Jean-Max Dutertre

Due to their powerful image generation capabilities, diffusion-based adversarial example generation methods through image editing are rapidly gaining popularity. However, due to reliance on the discriminative capability of the diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Gaozheng Pei , Ke Ma , Dongpeng Zhang , Chengzhi Sun , Qianqian Xu , Qingming Huang

We show that differentially private full fine-tuning (DP-FFT) can distort pre-trained backbone features based on both theoretical and empirical results. We identify the cause of the distortion as the misalignment between the pre-trained…

Machine Learning · Computer Science 2025-11-10 Shuqi Ke , Charlie Hou , Sewoong Oh , Giulia Fanti

Fine-tuning large language models (LLMs) in federated settings enables privacy-preserving adaptation but suffers from cross-client interference due to model aggregation. Existing federated LoRA fine-tuning methods, primarily based on…

Machine Learning · Computer Science 2025-11-17 Jieming Bian , Lei Wang , Letian Zhang , Jie Xu

Personalizing visual generative models to meet specific user needs has gained increasing attention, yet current methods like Low-Rank Adaptation (LoRA) remain impractical due to their demand for task-specific data and lengthy optimization.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Yiming Hao , Mutian Xu , Chongjie Ye , Jie Qin , Shunlin Lu , Yipeng Qin , Xiaoguang Han

As FMs drive progress toward Artificial General Intelligence (AGI), fine-tuning them under privacy and resource constraints has become increasingly critical particularly when highquality training data resides on distributed edge devices.…

Machine Learning · Computer Science 2025-08-27 Gang Hu , Yinglei Teng , Pengfei Wu , Nan Wang

Fine-tuning large language models (LLMs) aims to adapt pre-trained models to specific tasks using relatively small and domain-specific datasets. Among Parameter-Efficient Fine-Tuning (PEFT) methods, Low-Rank Adaptation (LoRA) stands out by…

Computation and Language · Computer Science 2026-04-16 Yarui Cao , Kai Liu

Federated Learning (FL) enables decentralized, privacy-preserving model training but struggles to balance global generalization and local personalization due to non-identical data distributions across clients. Personalized Fine-Tuning…

Machine Learning · Computer Science 2025-12-30 Minghui Chen , Hrad Ghoukasian , Ruinan Jin , Zehua Wang , Sai Praneeth Karimireddy , Xiaoxiao Li

Federated learning (FL) has emerged as a promising paradigm for enabling the collaborative training of models without centralized access to the raw data on local devices. In the typical FL paradigm (e.g., FedAvg), model weights are sent to…

Machine Learning · Computer Science 2024-12-25 Guangyu Sun , Umar Khalid , Matias Mendieta , Pu Wang , Chen Chen

Large-scale machine learning systems often involve data distributed across a collection of users. Federated learning algorithms leverage this structure by communicating model updates to a central server, rather than entire datasets. In this…

Machine Learning · Statistics 2022-07-19 Alberto Bietti , Chen-Yu Wei , Miroslav Dudík , John Langford , Zhiwei Steven Wu

This paper explores the security aspects of federated learning applications in medical image analysis. Current robustness-oriented methods like adversarial training, secure aggregation, and homomorphic encryption often risk privacy…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Erfan Darzi , Nanna M. Sijtsema , P. M. A van Ooijen

The distributed (federated) LLM is an important method for co-training the domain-specific LLM using siloed data. However, maliciously stealing model parameters and data from the server or client side has become an urgent problem to be…

Machine Learning · Computer Science 2024-01-22 Wei Huang , Yinggui Wang , Anda Cheng , Aihui Zhou , Chaofan Yu , Lei Wang

Large language models (LLMs) have achieved remarkable success and are widely adopted for diverse applications. However, fine-tuning these models often involves private or sensitive information, raising critical privacy concerns. In this…

Cryptography and Security · Computer Science 2025-06-13 Kaiyuan Zhang , Siyuan Cheng , Hanxi Guo , Yuetian Chen , Zian Su , Shengwei An , Yuntao Du , Charles Fleming , Ashish Kundu , Xiangyu Zhang , Ninghui Li

We propose a new finetuning method to provide pre-trained large language models (LMs) the ability to scale test-time compute through the diffusion framework. By increasing the number of diffusion steps, we show our finetuned models achieve…

Computation and Language · Computer Science 2025-06-04 Edoardo Cetin , Tianyu Zhao , Yujin Tang

Fine-tuning on open-source Large Language Models (LLMs) with proprietary data is now a standard practice for downstream developers to obtain task-specific LLMs. Surprisingly, we reveal a new and concerning risk along with the practice: the…

Computation and Language · Computer Science 2026-04-06 Zhexin Zhang , Yuhao Sun , Junxiao Yang , Shiyao Cui , Yuanchao Zhang , Hongning Wang , Minlie Huang

Large pre-trained models are commonly adapted to downstream tasks using parameter-efficient fine-tuning methods such as Low-Rank Adaptation (LoRA), which injects small trainable low-rank matrices instead of updating all weights. While LoRA…

Machine Learning · Computer Science 2026-03-10 Nurbek Tastan , Stefanos Laskaridis , Martin Takac , Karthik Nandakumar , Samuel Horvath

Privacy concerns have led to a surge in the creation of synthetic datasets, with diffusion models emerging as a promising avenue. Although prior studies have performed empirical evaluations on these models, there has been a gap in providing…

Machine Learning · Computer Science 2024-06-04 Rongzhe Wei , Eleonora Kreačić , Haoyu Wang , Haoteng Yin , Eli Chien , Vamsi K. Potluru , Pan Li

Text-to-image diffusion models have been shown to suffer from sample-level memorization, possibly reproducing near-perfect replica of images that they are trained on, which may be undesirable. To remedy this issue, we develop the first…

In recent years, the development of diffusion models has led to significant progress in image and video generation tasks, with pre-trained models like the Stable Diffusion series playing a crucial role. Inspired by model pruning which…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Teng Hu , Jiangning Zhang , Ran Yi , Hongrui Huang , Yabiao Wang , Lizhuang Ma

Vision-Language Models (VLMs) such as CLIP have shown remarkable performance in cross-modal tasks through large-scale contrastive pre-training. To adapt these large transformer-based models efficiently for downstream tasks,…

Machine Learning · Computer Science 2025-09-29 Sajjad Ghiasvand , Haniyeh Ehsani Oskouie , Mahnoosh Alizadeh , Ramtin Pedarsani