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Domain shift poses a fundamental challenge in time series analysis, where models trained on source domain often fail dramatically when applied in target domain with different yet similar distributions. While current unsupervised domain…

Machine Learning · Computer Science 2025-08-07 Rongyao Cai , Ming Jin , Qingsong Wen , Kexin Zhang

Semantic segmentation models struggle to generalize in the presence of domain shift. In this paper, we introduce contrastive learning for feature alignment in cross-domain adaptation. We assemble both in-domain contrastive pairs and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Feihu Zhang , Vladlen Koltun , Philip Torr , René Ranftl , Stephan R. Richter

Enhancing feature transferability by matching marginal distributions has led to improvements in domain adaptation, although this is at the expense of feature discrimination. In particular, the ideal joint hypothesis error in the target…

Computer Vision and Pattern Recognition · Computer Science 2020-06-20 Changhwa Park , Jonghyun Lee , Jaeyoon Yoo , Minhoe Hur , Sungroh Yoon

Deep neural networks have been widely studied in autonomous driving applications such as semantic segmentation or depth estimation. However, training a neural network in a supervised manner requires a large amount of annotated labels which…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Dongseok Shim , H. Jin Kim

Deep learning based medical image diagnosis has shown great potential in clinical medicine. However, it often suffers two major difficulties in real-world applications: 1) only limited labels are available for model training, due to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Yifan Zhang , Ying Wei , Qingyao Wu , Peilin Zhao , Shuaicheng Niu , Junzhou Huang , Mingkui Tan

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to a different unlabeled target domain. Most existing UDA methods focus on learning domain-invariant feature representation, either from…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Tongkun Xu , Weihua Chen , Pichao Wang , Fan Wang , Hao Li , Rong Jin

Current adversarial adaptation methods attempt to align the cross-domain features, whereas two challenges remain unsolved: 1) the conditional distribution mismatch and 2) the bias of the decision boundary towards the source domain. To solve…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Can Qin , Lichen Wang , Qianqian Ma , Yu Yin , Huan Wang , Yun Fu

Recent advances in unsupervised domain adaptation (UDA) show that transferable prototypical learning presents a powerful means for class conditional alignment, which encourages the closeness of cross-domain class centroids. However, the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Xiaofeng Liu , Xiongchang Liu , Bo Hu , Wenxuan Ji , Fangxu Xing , Jun Lu , Jane You , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

The problem of generalizing deep neural networks from multiple source domains to a target one is studied under two settings: When unlabeled target data is available, it is a multi-source unsupervised domain adaptation (UDA) problem,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Kaiyang Zhou , Yongxin Yang , Yu Qiao , Tao Xiang

Unsupervised Domain Adaptation (UDA) endeavors to bridge the gap between a model trained on a labeled source domain and its deployment in an unlabeled target domain. However, current high-performance models demand significant resources,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Minhee Cho , Hyesong Choi , Hayeon Jo , Dongbo Min

Unsupervised Domain Adaptation (UDA) aims to learn a predictor model for an unlabeled domain by transferring knowledge from a separate labeled source domain. However, most of these conventional UDA approaches make the strong assumption of…

Machine Learning · Computer Science 2021-04-06 Sk Miraj Ahmed , Dripta S. Raychaudhuri , Sujoy Paul , Samet Oymak , Amit K. Roy-Chowdhury

To learn target discriminative representations, using pseudo-labels is a simple yet effective approach for unsupervised domain adaptation. However, the existence of false pseudo-labels, which may have a detrimental influence on learning…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Jaehoon Choi , Minki Jeong , Taekyung Kim , Changick Kim

Unsupervised domain adaption (UDA) is a transfer learning task where the data and annotations of the source domain are available but only have access to the unlabeled target data during training. Most previous methods try to minimise the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Xinyao Shu , Shiyang Yan , Zhenyu Lu , Xinshao Wang , Yuan Xie

Human beings can quickly adapt to environmental changes by leveraging learning experience. However, adapting deep neural networks to dynamic environments by machine learning algorithms remains a challenge. To better understand this issue,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Shixiang Tang , Peng Su , Dapeng Chen , Wanli Ouyang

Unsupervised domain adaptation (UDA) plays a crucial role in object detection when adapting a source-trained detector to a target domain without annotated data. In this paper, we propose a novel and effective four-step UDA approach that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Mohamed L. Mekhalfi , Davide Boscaini , Fabio Poiesi

Methods for unsupervised domain adaptation (UDA) help to improve the performance of deep neural networks on unseen domains without any labeled data. Especially in medical disciplines such as histopathology, this is crucial since large…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Kevin Thandiackal , Luigi Piccinelli , Pushpak Pati , Orcun Goksel

Unsupervised domain adaptation (UDA) has been successfully applied to transfer knowledge from a labeled source domain to target domains without their labels. Recently introduced transferable prototypical networks (TPN) further addresses…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Fangxu Xing , Jia You , Jun Lu , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

Recent works on unsupervised domain adaptation (UDA) focus on the selection of good pseudo-labels as surrogates for the missing labels in the target data. However, source domain bias that deteriorates the pseudo-labels can still exist since…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Can Zhang , Gim Hee Lee

Domain adaptation (DA) is transfer learning which aims to learn an effective predictor on target data from source data despite data distribution mismatch between source and target. We present in this paper a novel unsupervised DA method for…

Computer Vision and Pattern Recognition · Computer Science 2018-02-23 Lingkun Luo , Liming Chen , Ying lu , Shiqiang Hu

Unsupervised domain adaptation (UDA) aims to transfer knowledge from a labeled source domain to an unlabeled target domain. Recent works have focused on source-free UDA, where only target data is available. This is challenging as models…

Machine Learning · Computer Science 2024-10-10 Chrisantus Eze , Christopher Crick