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Domain adaptation is crucial to adapt a learned model to new scenarios, such as domain shifts or changing data distributions. Current approaches usually require a large amount of labeled or unlabeled data from the shifted domain. This can…

计算机视觉与模式识别 · 计算机科学 2022-04-06 M. Jehanzeb Mirza , Jakub Micorek , Horst Possegger , Horst Bischof

Domain shift is a significant challenge in machine learning, particularly in medical applications where data distributions differ across institutions due to variations in data collection practices, equipment, and procedures. This can…

机器学习 · 计算机科学 2025-06-30 Takumi Okuo , Shinnosuke Matsuo , Shota Harada , Kiyohito Tanaka , Ryoma Bise

Domain adaptation (DA) aims to transfer discriminative features learned from source domain to target domain. Most of DA methods focus on enhancing feature transferability through domain-invariance learning. However, source-learned…

机器学习 · 计算机科学 2020-11-10 Jun Wen , Changjian Shui , Kun Kuang , Junsong Yuan , Zenan Huang , Zhefeng Gong , Nenggan Zheng

Semi-supervised domain adaptation (SSDA) adapts a learner to a new domain by effectively utilizing source domain data and a few labeled target samples. It is a practical yet under-investigated research topic. In this paper, we analyze the…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Wenqiao Zhang , Changshuo Liu , Can Cui , Beng Chin Ooi

Domain adaptation aims to leverage the supervision signal of source domain to obtain an accurate model for target domain, where the labels are not available. To leverage and adapt the label information from source domain, most existing…

机器学习 · 计算机科学 2019-11-22 Yuxuan Song , Lantao Yu , Zhangjie Cao , Zhiming Zhou , Jian Shen , Shuo Shao , Weinan Zhang , Yong Yu

Unsupervised domain adaptation aims to train a classification model from the labeled source domain for the unlabeled target domain. Since the data distributions of the two domains are different, the model often performs poorly on the target…

计算机视觉与模式识别 · 计算机科学 2022-03-10 Jieren Cheng , Le Liu , Xiangyan Tang , Wenxuan Tu , Boyi Liu , Ke Zhou , Qiaobo Da , Yue Yang

Supervised learning with large scale labeled datasets and deep layered models has made a paradigm shift in diverse areas in learning and recognition. However, this approach still suffers generalization issues under the presence of a domain…

机器学习 · 统计学 2016-03-28 Ozan Sener , Hyun Oh Song , Ashutosh Saxena , Silvio Savarese

Most research on domain adaptation has focused on the purely unsupervised setting, where no labeled examples in the target domain are available. However, in many real-world scenarios, a small amount of labeled target data is available and…

计算机视觉与模式识别 · 计算机科学 2021-10-20 Yu Zhang , Gongbo Liang , Nathan Jacobs

Unsupervised domain adaptation enables to alleviate the need for pixel-wise annotation in the semantic segmentation. One of the most common strategies is to translate images from the source domain to the target domain and then align their…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Jinyu Yang , Weizhi An , Sheng Wang , Xinliang Zhu , Chaochao Yan , Junzhou Huang

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

We introduce a new representation learning algorithm suited to the context of domain adaptation, in which data at training and test time come from similar but different distributions. Our algorithm is directly inspired by theory on domain…

机器学习 · 统计学 2015-02-10 Hana Ajakan , Pascal Germain , Hugo Larochelle , François Laviolette , Mario Marchand

Unsupervised domain adaptation is one of the challenging problems in computer vision. This paper presents a novel approach to unsupervised domain adaptations based on the optimal transport-based distance. Our approach allows aligning target…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Thanh-Dat Truong , Naga Venkata Sai Raviteja Chappa , Xuan Bac Nguyen , Ngan Le , Ashley Dowling , Khoa Luu

We introduce a new representation learning approach for domain adaptation, in which data at training and test time come from similar but different distributions. Our approach is directly inspired by the theory on domain adaptation…

Present domain adaptation methods usually perform explicit representation alignment by simultaneously accessing the source data and target data. However, the source data are not always available due to the privacy preserving consideration…

计算机视觉与模式识别 · 计算机科学 2023-03-02 Ning Ma , Jiajun Bu , Zhen Zhang , Sheng Zhou

Classical machine learning assumes that the training and test sets come from the same distributions. Therefore, a model learned from the labeled training data is expected to perform well on the test data. However, This assumption may not…

机器学习 · 计算机科学 2020-10-12 Abolfazl Farahani , Sahar Voghoei , Khaled Rasheed , Hamid R. Arabnia

Domain adaptation (DA) aims at transferring knowledge from a labeled source domain to an unlabeled target domain. Though many DA theories and algorithms have been proposed, most of them are tailored into classification settings and may fail…

计算机视觉与模式识别 · 计算机科学 2021-06-07 Junguang Jiang , Yifei Ji , Ximei Wang , Yufeng Liu , Jianmin Wang , Mingsheng Long

When learning a mapping from an input space to an output space, the assumption that the sample distribution of the training data is the same as that of the test data is often violated. Unsupervised domain shift methods adapt the learned…

机器学习 · 计算机科学 2017-03-07 Tomer Galanti , Lior Wolf

Current methods for covariate-shift adaptation use unlabelled data to compute importance weights or domain-invariant features, while the final model is trained on labelled data only. Here, we consider a particular case of covariate shift…

机器学习 · 统计学 2019-02-28 Julius von Kügelgen , Alexander Mey , Marco Loog

When machine learning models are deployed on a test distribution different from the training distribution, they can perform poorly, but overestimate their performance. In this work, we aim to better estimate a model's performance under…

机器学习 · 计算机科学 2020-07-08 Ching-Yao Chuang , Antonio Torralba , Stefanie Jegelka

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…

计算机视觉与模式识别 · 计算机科学 2022-08-17 Xiaofeng Liu , Chaehwa Yoo , Fangxu Xing , Hyejin Oh , Georges El Fakhri , Je-Won Kang , Jonghye Woo