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Unsupervised Domain Adaptation (UDA) refers to the problem of learning a model in a target domain where labeled data are not available by leveraging information from annotated data in a source domain. Most deep UDA approaches operate in a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Massimiliano Mancini , Lorenzo Porzi , Samuel Rota Bulò , Barbara Caputo , Elisa Ricci

Continuous Domain Adaptation (CDA) effectively bridges significant domain shifts by progressively adapting from the source domain through intermediate domains to the target domain. However, selecting intermediate domains without explicit…

Machine Learning · Computer Science 2025-10-14 Hanbing Liu , Huaze Tang , Yanru Wu , Yang Li , Xiao-Ping Zhang

In recent years, supervised person re-identification (re-ID) models have received increasing studies. However, these models trained on the source domain always suffer dramatic performance drop when tested on an unseen domain. Existing…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Hao Feng , Minghao Chen , Jinming Hu , Dong Shen , Haifeng Liu , Deng Cai

Face anti-spoofing (FAS) approaches based on unsupervised domain adaption (UDA) have drawn growing attention due to promising performances for target scenarios. Most existing UDA FAS methods typically fit the trained models to the target…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Ran Yi , Kekai Sheng , Shouhong Ding , Lizhuang Ma

Accurate recognition of human motion intention (HMI) is beneficial for exoskeleton robots to improve the wearing comfort level and achieve natural human-robot interaction. A classifier trained on labeled source subjects (domains) performs…

Signal Processing · Electrical Eng. & Systems 2025-04-29 Xiao-Yin Liu , Guotao Li , Xiao-Hu Zhou , Xu Liang , Zeng-Guang Hou

While deep learning methods hitherto have achieved considerable success in medical image segmentation, they are still hampered by two limitations: (i) reliance on large-scale well-labeled datasets, which are difficult to curate due to the…

Image and Video Processing · Electrical Eng. & Systems 2022-12-06 Ziyuan Zhao , Fangcheng Zhou , Kaixin Xu , Zeng Zeng , Cuntai Guan , S. Kevin Zhou

Unsupervised Domain Adaptation (UDA) approaches address the covariate shift problem by minimizing the distribution discrepancy between the source and target domains, assuming that the label distribution is invariant across domains. However,…

Machine Learning · Computer Science 2023-08-22 Xiaona Sun , Zhenyu Wu , Yichen Liu , Saier Hu , Zhiqiang Zhan , Yang Ji

Both limited annotation and domain shift are prevalent challenges in medical image segmentation. Traditional semi-supervised segmentation and unsupervised domain adaptation methods address one of these issues separately. However, the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Qinghe Ma , Jian Zhang , Lei Qi , Qian Yu , Yinghuan Shi , Yang Gao

Domain adaptation becomes more challenging with increasing gaps between source and target domains. Motivated from an empirical analysis on the reliability of labeled source data for the use of distancing target domains, we propose…

Machine Learning · Computer Science 2021-06-21 Yabin Zhang , Bin Deng , Kui Jia , Lei Zhang

This paper addresses the task of cross-modal medical image segmentation by exploring unsupervised domain adaptation (UDA) approaches. We propose a model-agnostic UDA framework, LowBridge, which builds on a simple observation that…

Image and Video Processing · Electrical Eng. & Systems 2025-05-20 Pengfei Lyu , Pak-Hei Yeung , Xiaosheng Yu , Jing Xia , Jianning Chi , Chengdong Wu , Jagath C. Rajapakse

Person re-identification (ReID) has made great strides thanks to the data-driven deep learning techniques. However, the existing benchmark datasets lack diversity, and models trained on these data cannot generalize well to dynamic wild…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Lei Zhang , Xiaowei Fu , Fuxiang Huang , Yi Yang , Xinbo Gao

Unsupervised Domain Adaptive (UDA) object re-identification (Re-ID) aims at adapting a model trained on a labeled source domain to an unlabeled target domain. State-of-the-art object Re-ID approaches adopt clustering algorithms to generate…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Pengfei Wang , Changxing Ding , Wentao Tan , Mingming Gong , Kui Jia , Dacheng Tao

We address the problem of unsupervised domain adaptation (UDA) by learning a cross-domain agnostic embedding space, where the distance between the probability distributions of the two source and target visual domains is minimized. We use…

Machine Learning · Computer Science 2019-09-25 Alex Gabourie , Mohammad Rostami , Philip Pope , Soheil Kolouri , Kyungnam Kim

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

We introduce an algorithm for tackling the problem of unsupervised domain adaptation (UDA) in continual learning (CL) scenarios. The primary objective is to maintain model generalization under domain shift when new domains arrive…

Machine Learning · Computer Science 2024-02-02 Mohammad Rostami

The majority of existing Unsupervised Domain Adaptation (UDA) methods presumes source and target domain data to be simultaneously available during training. Such an assumption may not hold in practice, as source data is often inaccessible…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Waqar Ahmed , Pietro Morerio , Vittorio Murino

Unsupervised Domain Adaptation (UDA) aims to classify unlabeled target domain by transferring knowledge from labeled source domain with domain shift. Most of the existing UDA methods try to mitigate the adverse impact induced by the shift…

Machine Learning · Computer Science 2022-12-13 Weikai Li , Songcan Chen

This paper presents an unsupervised domain adaptation (UDA) method for predicting unlabeled target domain data, specific to complex UDA tasks where the domain gap is significant. Mainstream UDA models aim to learn from both domains and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Jun Kataoka , Hyunsoo Yoon

Contemporary person re-identification (\reid) methods usually require access to data from the deployment camera network during training in order to perform well. This is because contemporary \reid{} models trained on one dataset do not…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Jieru Jia , Qiuqi Ruan , Timothy M. Hospedales

Multi-source Domain Adaptation (MDA) seeks to adapt models trained on data from multiple labeled source domains to perform effectively on an unlabeled target domain data, assuming access to sources data. To address the challenges of model…

Machine Learning · Computer Science 2024-08-20 Omar Ghannou , Younès Bennani
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