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Semi-Supervised Domain Adaptation (SSDA) is a recently emerging research topic that extends from the widely-investigated Unsupervised Domain Adaptation (UDA) by further having a few target samples labeled, i.e., the model is trained with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 mengqun Jin , Kai Li , Shuyan Li , Chunming He , Xiu Li

In domain adaptation, there are two popular paradigms: Unsupervised Domain Adaptation (UDA), which aligns distributions using source data, and Source-Free Domain Adaptation (SFDA), which leverages pre-trained source models without accessing…

Machine Learning · Computer Science 2024-11-26 Fan Wang , Zhongyi Han , Xingbo Liu , Xin Gao , Yilong Yin

In this work, we introduce a new concept, named source-free open compound domain adaptation (SF-OCDA), and study it in semantic segmentation. SF-OCDA is more challenging than the traditional domain adaptation but it is more practical. It…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Yuyang Zhao , Zhun Zhong , Zhiming Luo , Gim Hee Lee , Nicu Sebe

Unsupervised domain adaptation aims to leverage labeled data from a source domain to learn a classifier for an unlabeled target domain. Among its many variants, open set domain adaptation (OSDA) is perhaps the most challenging, as it…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Dongliang Chang , Aneeshan Sain , Zhanyu Ma , Yi-Zhe Song , Jun Guo

Domain adaptation solves image classification problems in the target domain by taking advantage of the labelled source data and unlabelled target data. Usually, the source and target domains share the same set of classes. As a special case,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Qian Wang , Fanlin Meng , Toby P. Breckon

Unsupervised domain adaptation (UDA) for semantic segmentation aims to transfer the pixel-wise knowledge from the labeled source domain to the unlabeled target domain. However, current UDA methods typically assume a shared label space…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Seun-An Choe , Ah-Hyung Shin , Keon-Hee Park , Jinwoo Choi , Gyeong-Moon Park

Unsupervised domain adaptation (UDA) assumes that source and target domain data are freely available and usually trained together to reduce the domain gap. However, considering the data privacy and the inefficiency of data transmission, it…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Xianfeng Li , Weijie Chen , Di Xie , Shicai Yang , Peng Yuan , Shiliang Pu , Yueting Zhuang

Convolutional neural networks (CNNs) can learn directly from raw data, resulting in exceptional performance across various research areas. However, factors present in non-controllable environments such as unlabeled datasets with varying…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Lucas Fernando Alvarenga e Silva , Samuel Felipe dos Santos , Nicu Sebe , Jurandy Almeida

Unsupervised Domain Adaptation (UDA) can tackle the challenge that convolutional neural network(CNN)-based approaches for semantic segmentation heavily rely on the pixel-level annotated data, which is labor-intensive. However, existing UDA…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Yuang Liu , Wei Zhang , Jun Wang

Semi-supervised domain adaptation (SSDA) has been widely studied due to its ability to utilize a few labeled target data to improve the generalization ability of the model. However, existing methods only consider designing certain…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Xinyang Huang , Chuang Zhu , Bowen Zhang , Shanghang Zhang

Domain adaptation (DA) aims to transfer the knowledge learned from a source domain to an unlabeled target domain. Some recent works tackle source-free domain adaptation (SFDA) where only a source pre-trained model is available for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Shiqi Yang , Yaxing Wang , Joost van de Weijer , Luis Herranz , Shangling Jui

Recent studies have used unsupervised domain adaptive object detection (UDAOD) methods to bridge the domain gap in remote sensing (RS) images. However, UDAOD methods typically assume that the source domain data can be accessed during the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Weixing Liu , Jun Liu , Xin Su , Han Nie , Bin Luo

Over the past decade, domain adaptation has become a widely studied branch of transfer learning that aims to improve performance on target domains by leveraging knowledge from the source domain. Conventional domain adaptation methods often…

Machine Learning · Computer Science 2023-02-24 Zhiqi Yu , Jingjing Li , Zhekai Du , Lei Zhu , Heng Tao Shen

Semi-supervised domain adaptation (SSDA) adapts a learner to a new domain by effectively utilizing source domain data and a few labeled target samples. It is a practical yet under-investigated research topic. In this paper, we analyze the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Wenqiao Zhang , Changshuo Liu , Can Cui , Beng Chin Ooi

Source-free Unsupervised Domain Adaptation (SFDA) aims to classify target samples by only accessing a pre-trained source model and unlabelled target samples. Since no source data is available, transferring the knowledge from the source…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Jinkun Jiang , Qingxuan Lv , Yuezun Li , Yong Du , Sheng Chen , Hui Yu , Junyu Dong

We propose a simple but effective source-free domain adaptation (SFDA) method. Treating SFDA as an unsupervised clustering problem and following the intuition that local neighbors in feature space should have more similar predictions than…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Shiqi Yang , Yaxing Wang , Kai Wang , Shangling Jui , Joost van de Weijer

The increasing adaptation of vision models across domains, such as satellite imagery and medical scans, has raised an emerging privacy risk: models may inadvertently retain and leak sensitive source-domain specific information in the target…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Arnav Devalapally , Poornima Jain , Kartik Srinivas , Vineeth N. Balasubramanian

Semi-supervised domain adaptation (SSDA) is to adapt a learner to a new domain with only a small set of labeled samples when a large labeled dataset is given on a source domain. In this paper, we propose a pair-based SSDA method that adapts…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Jeongbeen Yoon , Dahyun Kang , Minsu Cho

Source-free domain adaptation (SFDA) is compelling because it allows adapting an off-the-shelf model to a new domain using only unlabelled data. In this work, we apply existing SFDA techniques to a challenging set of naturally-occurring…

Machine Learning · Computer Science 2023-06-27 Malik Boudiaf , Tom Denton , Bart van Merriënboer , Vincent Dumoulin , Eleni Triantafillou

Open Set Domain Adaptation (OSDA) aims to cope with the distribution and label shifts between the source and target domains simultaneously, performing accurate classification for known classes while identifying unknown class samples in the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Zhenbang Du , Jiayu An , Yunlu Tu , Jiahao Hong , Dongrui Wu