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Unsupervised domain adaptation has recently emerged as an effective paradigm for generalizing deep neural networks to new target domains. However, there is still enormous potential to be tapped to reach the fully supervised performance. In…

Machine Learning · Computer Science 2022-03-10 Binhui Xie , Longhui Yuan , Shuang Li , Chi Harold Liu , Xinjing Cheng , Guoren Wang

In leveraging manifold learning in domain adaptation (DA), graph embedding-based DA methods have shown their effectiveness in preserving data manifold through the Laplace graph. However, current graph embedding DA methods suffer from two…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Lingkun Luo , Liming Chen , Shiqiang Hu

Unsupervised domain adaptation (UDA) aims to learn transferable knowledge from a labeled source domain and adapts a trained model to an unlabeled target domain. To bridge the gap between source and target domains, one prevailing strategy is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Xu Ma , Junkun Yuan , Yen-wei Chen , Ruofeng Tong , Lanfen Lin

Unsupervised domain adaptation (UDA) adapts a model trained on one domain (called source) to a novel domain (called target) using only unlabeled data. Due to its high annotation cost, researchers have developed many UDA methods for semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Zhijie Wang , Masanori Suganuma , Takayuki Okatani

Domain adaptation (DA) has been widely applied in the diabetic retinopathy (DR) grading of unannotated ultra-wide-field (UWF) fundus images, which can transfer annotated knowledge from labeled color fundus images. However, suffering from…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Jinye Ran , Guanghua Zhang , Ximei Zhang , Juan Xie , Fan Xia , Hao Zhang

Unsupervised domain adaptation (UDA) aims to transfer and adapt knowledge from a labeled source domain to an unlabeled target domain. Traditionally, subspace-based methods form an important class of solutions to this problem. Despite their…

Machine Learning · Computer Science 2022-01-07 Kowshik Thopalli , Jayaraman J Thiagarajan , Rushil Anirudh , Pavan K Turaga

Existing methods for last layer retraining that aim to optimize worst-group accuracy (WGA) rely heavily on well-annotated groups in the training data. We show, both in theory and practice, that annotation-based data augmentations using…

Machine Learning · Computer Science 2024-06-27 Nathan Stromberg , Rohan Ayyagari , Monica Welfert , Sanmi Koyejo , Richard Nock , Lalitha Sankar

Human Activity Recognition (HAR) such as fall detection has become increasingly critical due to the aging population, necessitating effective monitoring systems to prevent serious injuries and fatalities associated with falls. This study…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Yijun Wang , Yong Wang , Chendong xu , Shuai Yao , Qisong Wu

Traditional machine learning assumes that training and test sets are derived from the same distribution; however, this assumption does not always hold in practical applications. This distribution disparity can lead to severe performance…

Machine Learning · Computer Science 2025-02-18 Ahmad Chaddad , Yihang Wu , Yuchen Jiang , Ahmed Bouridane , Christian Desrosiers

Unsupervised domain adaptation (UDA) for image classification has made remarkable progress in transferring classification knowledge from a labeled source domain to an unlabeled target domain, thanks to effective domain alignment techniques.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Lin Zhang , Linghan Xu , Saman Motamed , Shayok Chakraborty , Fernando De la Torre

Accurate Remaining Useful Life (RUL) prediction without labeled target domain data is a critical challenge, and domain adaptation (DA) has been widely adopted to address it by transferring knowledge from a labeled source domain to an…

Machine Learning · Computer Science 2026-03-18 Yubo Hou , Mohamed Ragab , Yucheng Wang , Min Wu , Abdulla Alseiari , Chee-Keong Kwoh , Xiaoli Li , Zhenghua Chen

Heterogeneous unsupervised domain adaptation (HUDA) is the most challenging domain adaptation setting where the feature spaces of source and target domains are heterogeneous, and the target domain has only unlabeled data. Existing HUDA…

Machine Learning · Computer Science 2024-02-01 Junki Mori , Ryo Furukawa , Isamu Teranishi , Jun Sakuma

Scene understanding is a pivotal task for autonomous vehicles to safely navigate in the environment. Recent advances in deep learning enable accurate semantic reconstruction of the surroundings from LiDAR data. However, these models…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Borna Bešić , Nikhil Gosala , Daniele Cattaneo , Abhinav Valada

Learning predictive models in new domains with scarce training data is a growing challenge in modern supervised learning scenarios. This incentivizes developing domain adaptation methods that leverage the knowledge in known domains (source)…

Machine Learning · Computer Science 2023-05-02 Mohammadreza Ebrahimi , Yidong Chai , Hao Helen Zhang , Hsinchun Chen

Multi-source unsupervised domain adaptation~(MSDA) aims at adapting models trained on multiple labeled source domains to an unlabeled target domain. In this paper, we propose a novel multi-source domain adaptation framework based on…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Jianzhong He , Xu Jia , Shuaijun Chen , Jianzhuang Liu

Domain adaptation (DA) is a representation learning methodology that transfers knowledge from a label-sufficient source domain to a label-scarce target domain. While most of early methods are focused on unsupervised DA (UDA), several…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Yoonhyung Kim , Changick Kim

Clustering-based unsupervised domain adaptive (UDA) person re-identification (ReID) reduces exhaustive annotations. However, owing to unsatisfactory feature embedding and imperfect clustering, pseudo labels for target domain data inherently…

Computer Vision and Pattern Recognition · Computer Science 2022-04-29 Jian Han , Ya-Li li , Shengjin Wang

Unsupervised domain adaptation (UDA) addresses the problem of distribution shift between the unlabelled target domain and labelled source domain. While the single target domain adaptation (STDA) is well studied in the literature for both 2D…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Ashish Sinha , Jonghyun Choi

Domain adaptation (DA) is the topical problem of adapting models from labelled source datasets so that they perform well on target datasets where only unlabelled or partially labelled data is available. Many methods have been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Da Li , Timothy Hospedales

Addressing performance degradation in 3D LiDAR semantic segmentation due to domain shifts (e.g., sensor type, geographical location) is crucial for autonomous systems, yet manual annotation of target data is prohibitive. This study…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Abhishek Kaushik , Norbert Haala , Uwe Soergel