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Although achieving remarkable progress, it is very difficult to induce a supervised classifier without any labeled data. Unsupervised domain adaptation is able to overcome this challenge by transferring knowledge from a labeled source…

Machine Learning · Computer Science 2021-06-29 Yuntao Du , Ruiting Zhang , Xiaowen Zhang , Yirong Yao , Hengyang Lu , Chongjun Wang

We study the problem of unsupervised domain adaptation, which aims to adapt classifiers trained on a labeled source domain to an unlabeled target domain. Many existing approaches first learn domain-invariant features and then construct…

Machine Learning · Computer Science 2012-07-03 Yuan Shi , Fei Sha

Most existing studies on unsupervised domain adaptation (UDA) assume that each domain's training samples come with domain labels (e.g., painting, photo). Samples from each domain are assumed to follow the same distribution and the domain…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Zhongying Deng , Kaiyang Zhou , Da Li , Junjun He , Yi-Zhe Song , Tao Xiang

The recent success of deep neural networks relies on massive amounts of labeled data. For a target task where labeled data is unavailable, domain adaptation can transfer a learner from a different source domain. In this paper, we propose a…

Machine Learning · Computer Science 2017-02-17 Mingsheng Long , Han Zhu , Jianmin Wang , Michael I. Jordan

This paper presents a novel multi-task learning-based method for unsupervised domain adaptation. Specifically, the source and target domain classifiers are jointly learned by considering the geometry of target domain and the divergence…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Jing Zhang , Wanqing Li , Philip Ogunbona

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

Recently, cross domain transfer has been applied for unsupervised image restoration tasks. However, directly applying existing frameworks would lead to domain-shift problems in translated images due to lack of effective supervision.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Wenchao Du , Hu Chen , Hongyu Yang

The accuracy of deep learning (e.g., convolutional neural networks) for an image classification task critically relies on the amount of labeled training data. Aiming to solve an image classification task on a new domain that lacks labeled…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Xianghong Fang , Haoli Bai , Ziyi Guo , Bin Shen , Steven Hoi , Zenglin Xu

Unsupervised domain adaptation (UDA) aims to align the labelled source distribution with the unlabelled target distribution to obtain domain-invariant predictive models. Since cross-modality medical data exhibit significant intra and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Fengming Lin , Yan Xia , Michael MacRaild , Yash Deo , Haoran Dou , Qiongyao Liu , Kun Wu , Nishant Ravikumar , Alejandro F. Frangi

Conventional cross-domain image-to-image translation or unsupervised domain adaptation methods assume that the source domain and target domain are closely related. This neglects a practical scenario where the domain discrepancy between the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Yichen Li , Xingchao Peng

While unsupervised domain adaptation has been explored to leverage the knowledge from a labeled source domain to an unlabeled target domain, existing methods focus on the distribution alignment between two domains. However, how to better…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Youshan Zhang , Brian D. Davison

Unsupervised domain adaptation has been widely adopted to generalize models for unlabeled data in a target domain, given labeled data in a source domain, whose data distributions differ from the target domain. However, existing works are…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Weiming Zhuang , Xin Gan , Yonggang Wen , Xuesen Zhang , Shuai Zhang , Shuai Yi

Unsupervised domain adaptation (UDA) is a critical challenge in the field of point cloud analysis. Previous works tackle the problem either by feature extractor adaptation to enable a shared classifier to distinguish domain-invariant…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Zicheng Wang , Zhen Zhao , Yiming Wu , Luping Zhou , Dong Xu

Deep learning has become the method of choice to tackle real-world problems in different domains, partly because of its ability to learn from data and achieve impressive performance on a wide range of applications. However, its success…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Chaehwa Yoo , Fangxu Xing , Hyejin Oh , Georges El Fakhri , Je-Won Kang , Jonghye Woo

Multi-Source Unsupervised Domain Adaptation (multi-source UDA) aims to learn a model from several labeled source domains while performing well on a different target domain where only unlabeled data are available at training time. To align…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Marin Scalbert , Maria Vakalopoulou , Florent Couzinié-Devy

A classifier trained on a dataset seldom works on other datasets obtained under different conditions due to domain shift. This problem is commonly addressed by domain adaptation methods. In this work we introduce a novel deep learning…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Subhankar Roy , Aliaksandr Siarohin , Enver Sangineto , Samuel Rota Bulo , Nicu Sebe , Elisa Ricci

Unsupervised domain adaption (UDA) aims to adapt models learned from a well-annotated source domain to a target domain, where only unlabeled samples are given. Current UDA approaches learn domain-invariant features by aligning source and…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Chunjiang Ge , Rui Huang , Mixue Xie , Zihang Lai , Shiji Song , Shuang Li , Gao Huang

Large-scale labeled training datasets have enabled deep neural networks to excel on a wide range of benchmark vision tasks. However, in many applications it is prohibitively expensive or time-consuming to obtain large quantities of labeled…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Sicheng Zhao , Bichen Wu , Joseph Gonzalez , Sanjit A. Seshia , Kurt Keutzer

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

Domain adaptation is transfer learning which aims to generalize a learning model across training and testing data with different distributions. Most previous research tackle this problem in seeking a shared feature representation between…

Machine Learning · Computer Science 2017-04-17 Lingkun Luo , Xiaofang Wang , Shiqiang Hu , Chao Wang , Yuxing Tang , Liming Chen