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Unsupervised domain adaptation (UDA) via deep learning has attracted appealing attention for tackling domain-shift problems caused by distribution discrepancy across different domains. Existing UDA approaches highly depend on the…

计算机视觉与模式识别 · 计算机科学 2023-01-10 Yuqi Fang , Pew-Thian Yap , Weili Lin , Hongtu Zhu , Mingxia Liu

We consider unsupervised domain adaptation (UDA), where labeled data from a source domain (e.g., photographs) and unlabeled data from a target domain (e.g., sketches) are used to learn a classifier for the target domain. Conventional UDA…

机器学习 · 计算机科学 2022-12-05 Kendrick Shen , Robbie Jones , Ananya Kumar , Sang Michael Xie , Jeff Z. HaoChen , Tengyu Ma , Percy Liang

Unsupervised domain adaptation (UDA) involves adapting a model trained on a label-rich source domain to an unlabeled target domain. However, in real-world scenarios, the absence of target-domain labels makes it challenging to evaluate the…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Jianfei Yang , Hanjie Qian , Yuecong Xu , Kai Wang , Lihua Xie

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…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Abhishek Kaushik , Norbert Haala , Uwe Soergel

In unsupervised domain adaptation (UDA), classifiers for the target domain (TD) are trained with clean labeled data from the source domain (SD) and unlabeled data from TD. However, in the wild, it is difficult to acquire a large amount of…

机器学习 · 计算机科学 2021-02-19 Feng Liu , Jie Lu , Bo Han , Gang Niu , Guangquan Zhang , Masashi Sugiyama

Source-free unsupervised domain adaptation (SFUDA) aims to enable the utilization of a pre-trained source model in an unlabeled target domain without access to source data. Self-training is a way to solve SFUDA, where confident target…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Xi Chen , Haosen Yang , Huicong Zhang , Hongxun Yao , Xiatian Zhu

We consider unsupervised domain adaptation (UDA) for classification problems in the presence of missing data in the unlabelled target domain. More precisely, motivated by practical applications, we analyze situations where distribution…

机器学习 · 计算机科学 2021-09-21 Matthieu Kirchmeyer , Patrick Gallinari , Alain Rakotomamonjy , Amin Mantrach

This paper studies the hardness of unsupervised domain adaptation (UDA) under covariate shift. We model the uncertainty that the learner faces by a distribution $\pi$ in the ground-truth triples $(p, q, f)$ -- which we call a UDA class --…

机器学习 · 统计学 2025-07-10 Zhiyi Dong , Zixuan Liu , Yongyi Mao

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…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Da Li , Timothy Hospedales

Unsupervised domain adaptation (UDA) methods for learning domain invariant representations have achieved remarkable progress. However, most of the studies were based on direct adaptation from the source domain to the target domain and have…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Jaemin Na , Heechul Jung , Hyung Jin Chang , Wonjun Hwang

Unsupervised Domain Adaptation (UDA) aims to adapt the model trained on the labeled source domain to an unlabeled target domain. In this paper, we present Prototypical Contrast Adaptation (ProCA), a simple and efficient contrastive learning…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Zhengkai Jiang , Yuxi Li , Ceyuan Yang , Peng Gao , Yabiao Wang , Ying Tai , Chengjie Wang

Unsupervised domain adaptation (UDA) is to learn classification models that make predictions for unlabeled data on a target domain, given labeled data on a source domain whose distribution diverges from the target one. Mainstream UDA…

计算机视觉与模式识别 · 计算机科学 2021-04-09 Hui Tang , Xiatian Zhu , Ke Chen , Kui Jia , C. L. Philip Chen

Unsupervised domain adaptation (UDA) aims to leverage the knowledge learned from a labeled source dataset to solve similar tasks in a new unlabeled domain. Prior UDA methods typically require to access the source data when learning to adapt…

计算机视觉与模式识别 · 计算机科学 2021-06-02 Jian Liang , Dapeng Hu , Jiashi Feng

Solving the domain shift problem during inference is essential in medical imaging, as most deep-learning based solutions suffer from it. In practice, domain shifts are tackled by performing Unsupervised Domain Adaptation (UDA), where a…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Vibashan VS , Jeya Maria Jose Valanarasu , Vishal M. Patel

Unsupervised domain adaptation (UDA) methods can dramatically improve generalization on unlabeled target domains. However, optimal hyper-parameter selection is critical to achieving high accuracy and avoiding negative transfer. Supervised…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Kuniaki Saito , Donghyun Kim , Piotr Teterwak , Stan Sclaroff , Trevor Darrell , Kate Saenko

Domain adaptation is a potential method to train a powerful deep neural network, which can handle the absence of labeled data. More precisely, domain adaptation solving the limitation called dataset bias or domain shift when the training…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Thai-Vu Nguyen , Anh Nguyen , Nghia Le , Bac Le

Domain adaptation (DA) tackles the issue of distribution shift by learning a model from a source domain that generalizes to a target domain. However, most existing DA methods are designed for scenarios where the source and target domain…

机器学习 · 计算机科学 2024-12-18 Thai-Hoang Pham , Yuanlong Wang , Changchang Yin , Xueru Zhang , Ping Zhang

Class imbalance naturally exists when train and test models in different domains. Unsupervised domain adaptation (UDA) augments model performance with only accessible annotations from the source domain and unlabeled data from the target…

计算与语言 · 计算机科学 2022-05-27 Yuexin Wu , Xiaolei Huang

Learning to reject unknown samples (not present in the source classes) in the target domain is fairly important for unsupervised domain adaptation (UDA). There exist two typical UDA scenarios, i.e., open-set, and open-partial-set, and the…

计算机视觉与模式识别 · 计算机科学 2021-12-17 Jian Liang , Dapeng Hu , Jiashi Feng , Ran He

In recent years, researchers have been paying increasing attention to the threats brought by deep learning models to data security and privacy, especially in the field of domain adaptation. Existing unsupervised domain adaptation (UDA)…

机器学习 · 计算机科学 2021-08-31 Kunhong Wu , Yucheng Shi , Yahong Han , Yunfeng Shao , Bingshuai Li , Qi Tian