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Domain adaptation (DA) aims to alleviate the domain shift between source domain and target domain. Most DA methods require access to the source data, but often that is not possible (e.g. due to data privacy or intellectual property). In…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Shiqi Yang , Yaxing Wang , Joost van de Weijer , Luis Herranz , Shangling Jui , Jian Yang

Source-free Domain Adaptation (SFDA) aims to adapt a pre-trained source model to the unlabeled target domain without accessing the well-labeled source data, which is a much more practical setting due to the data privacy, security, and…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Sanqing Qu , Guang Chen , Jing Zhang , Zhijun Li , Wei He , Dacheng Tao

Vision foundation models pre-trained on massive data encode rich representations of real-world concepts, which can be adapted to downstream tasks by fine-tuning. However, fine-tuning foundation models on one task often leads to the issue of…

Domain adaptation (DA) addresses the challenge of transferring knowledge from a source domain to a target domain where image data distributions may differ. Existing DA methods often require access to source domain data, adversarial…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Debopom Sutradhar , Md. Abdur Rahman , Mohaimenul Azam Khan Raiaan , Reem E. Mohamed , Sami Azam

Domain Adaptation (DA) is important for deep learning-based medical image segmentation models to deal with testing images from a new target domain. As the source-domain data are usually unavailable when a trained model is deployed at a new…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Jianghao Wu , Guotai Wang , Ran Gu , Tao Lu , Yinan Chen , Wentao Zhu , Tom Vercauteren , Sébastien Ourselin , Shaoting Zhang

The success of deep learning in computer vision is mainly attributed to an abundance of data. However, collecting large-scale data is not always possible, especially for the supervised labels. Unsupervised domain adaptation (UDA) aims to…

Computer Vision and Pattern Recognition · Computer Science 2018-01-01 Jiren Jin , Richard G. Calland , Takeru Miyato , Brian K. Vogel , Hideki Nakayama

Most unsupervised domain adaptation (UDA) methods assume that labeled source images are available during model adaptation. However, this assumption is often infeasible owing to confidentiality issues or memory constraints on mobile devices.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 JoonHo Lee , Gyemin Lee

It is desirable to transfer the knowledge stored in a well-trained source model onto non-annotated target domain in the absence of source data. However, state-of-the-art methods for source free domain adaptation (SFDA) are subject to strict…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Xin Luo , Wei Chen , Yusong Tan , Chen Li , Yulin He , Xiaogang Jia

Models should be able to adapt to unseen data during test-time to avoid performance drops caused by inevitable distribution shifts in real-world deployment scenarios. In this work, we tackle the practical yet challenging test-time…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Yunhe Gao , Xingjian Shi , Yi Zhu , Hao Wang , Zhiqiang Tang , Xiong Zhou , Mu Li , Dimitris N. Metaxas

Unsupervised Domain Adaptation (UDA) is an effective approach to tackle the issue of domain shift. Specifically, UDA methods try to align the source and target representations to improve the generalization on the target domain. Further, UDA…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Vibashan VS , Poojan Oza , Vishal M. Patel

Effective object detection in autonomous vehicles is challenged by deployment in diverse and unfamiliar environments. Online Source-Free Domain Adaptation (O-SFDA) offers model adaptation using a stream of unlabeled data from a target…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Xiangyu Shi , Yanyuan Qiao , Qi Wu , Lingqiao Liu , Feras Dayoub

We address the source-free domain adaptation (SFDA) problem, where only the source model is available during adaptation to the target domain. We consider two settings: the offline setting where all target data can be visited multiple times…

Computer Vision and Pattern Recognition · Computer Science 2023-06-13 Shiqi Yang , Yaxing Wang , Joost van de Weijer , Luis Herranz , Shangling Jui

Source-free domain generalization (SFDG) tackles the challenge of adapting models to unseen target domains without access to source domain data. To deal with this challenging task, recent advances in SFDG have primarily focused on…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Haoran Zhang , Shuanghao Bai , Wanqi Zhou , Jingwen Fu , Badong Chen

Source-free domain adaptation (SFDA) has been exploited for cross-domain bearing fault diagnosis without access to source data. Current methods select partial target samples with reliable pseudo-labels for model adaptation, which is…

Machine Learning · Computer Science 2025-03-13 Wenyi Wu , Hao Zhang , Zhisen Wei , Xiao-Yuan Jing , Qinghua Zhang , Songsong Wu

Unsupervised Source (data) Free domain adaptation (USFDA) aims to transfer knowledge from a well-trained source model to a related but unlabeled target domain. In such a scenario, all conventional adaptation methods that require source data…

Machine Learning · Computer Science 2022-04-08 Weikai Li , Meng Cao , Songcan Chen

We investigate a practical domain adaptation task, called source-free domain adaptation (SFUDA), where the source-pretrained model is adapted to the target domain without access to the source data. Existing techniques mainly leverage…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Ziyi Zhang , Weikai Chen , Hui Cheng , Zhen Li , Siyuan Li , Liang Lin , Guanbin Li

Unsupervised domain adaptation (UDA) is an important topic in the computer vision community. The key difficulty lies in defining a common property between the source and target domains so that the source-domain features can align with the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Xinyue Huo , Lingxi Xie , Hengtong Hu , Wengang Zhou , Houqiang Li , Qi Tian

This paper introduces a novel approach to leverage the generalizability of Diffusion Models for Source-Free Domain Adaptation (DM-SFDA). Our proposed DMSFDA method involves fine-tuning a pre-trained text-to-image diffusion model to generate…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Shivang Chopra , Suraj Kothawade , Houda Aynaou , Aman Chadha

Due to privacy, storage, and other constraints, there is a growing need for unsupervised domain adaptation techniques in machine learning that do not require access to the data used to train a collection of source models. Existing methods…

Machine Learning · Computer Science 2023-06-01 Maohao Shen , Yuheng Bu , Gregory Wornell

Facial expression recognition (FER) models are widely used in video-based affective computing applications, such as human-computer interaction and healthcare monitoring. However, deep FER models often struggle with subtle expressions and…