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Unsupervised Domain Adaptation (UDA) is an effective approach to tackle the issue of domain shift. Specifically, UDA methods try to align the source and target representations to improve the generalization on the target domain. Further, UDA…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Vibashan VS , Poojan Oza , Vishal M. Patel

Domain adaptation assumes that samples from source and target domains are freely accessible during a training phase. However, such an assumption is rarely plausible in the real-world and possibly causes data-privacy issues, especially when…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Youngeun Kim , Donghyeon Cho , Kyeongtak Han , Priyadarshini Panda , Sungeun Hong

Unsupervised Domain Adaptation (UDA) aims to solve the problem of label scarcity of the target domain by transferring the knowledge from the label rich source domain. Usually, the source domain consists of synthetic images for which the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Anant Khandelwal

Unsupervised domain adaptation (UDA) is to make predictions for unlabeled data on a target domain, given labeled data on a source domain whose distribution shifts from the target one. Mainstream UDA methods learn aligned features between…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Hui Tang , Ke Chen , Kui Jia

Source-free domain adaptation (SFDA) aims to adapt a well-trained source model to an unlabelled target domain without accessing the source dataset, making it applicable in a variety of real-world scenarios. Existing SFDA methods ONLY assess…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Longxiang Tang , Kai Li , Chunming He , Yulun Zhang , Xiu Li

Deep Neural Networks have significantly impacted many computer vision tasks. However, their effectiveness diminishes when test data distribution (target domain) deviates from the one of training data (source domain). In situations where…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Andrea Maracani , Lorenzo Rosasco , Lorenzo Natale

Recent works on unsupervised domain adaptation (UDA) focus on the selection of good pseudo-labels as surrogates for the missing labels in the target data. However, source domain bias that deteriorates the pseudo-labels can still exist since…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Can Zhang , Gim Hee Lee

Unsupervised domain adaptation (UDA) is a technique used to transfer knowledge from a labeled source domain to a different but related unlabeled target domain. While many UDA methods have shown success in the past, they often assume that…

Machine Learning · Computer Science 2023-02-07 Yiling Liu , Juncheng Dong , Ziyang Jiang , Ahmed Aloui , Keyu Li , Hunter Klein , Vahid Tarokh , David Carlson

Growing demands for clinical data privacy and storage constraints have spurred advances in Source Free Unsupervised Domain Adaptation (SFUDA). SFUDA addresses the domain shift by adapting models from the source domain to the unseen target…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Yulong Shi , Jiapeng Li , Lin Qi

By using unsupervised domain adaptation (UDA), knowledge can be transferred from a label-rich source domain to a target domain that contains relevant information but lacks labels. Many existing UDA algorithms suffer from directly using raw…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Le Luo , Bingrong Xu , Qingyong Zhang , Cheng Lian , Jie Luo

Unsupervised domain adaptation (UDA) enables knowledge transfer from the labelled source domain to the unlabeled target domain by reducing the cross-domain discrepancy. However, most of the studies were based on direct adaptation from the…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Qiuhao Zeng , Tianze Luo , Boyu Wang

3D object detectors based only on LiDAR point clouds hold the state-of-the-art on modern street-view benchmarks. However, LiDAR-based detectors poorly generalize across domains due to domain shift. In the case of LiDAR, in fact, domain…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Cristiano Saltori , Stéphane Lathuiliére , Nicu Sebe , Elisa Ricci , Fabio Galasso

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to an unlabeled and unseen target domain, which is usually trained on data from both domains. Access to the source domain data at the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Xiaofeng Liu , Fangxu Xing , Chao Yang , Georges El Fakhri , Jonghye Woo

Source-free Unsupervised Domain Adaptation (SFDA) aims to classify target samples by only accessing a pre-trained source model and unlabelled target samples. Since no source data is available, transferring the knowledge from the source…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Jinkun Jiang , Qingxuan Lv , Yuezun Li , Yong Du , Sheng Chen , Hui Yu , Junyu Dong

Domain adaptation (DA) aims to transfer the knowledge learned from a source domain to an unlabeled target domain. Some recent works tackle source-free domain adaptation (SFDA) where only a source pre-trained model is available for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Shiqi Yang , Yaxing Wang , Joost van de Weijer , Luis Herranz , Shangling Jui

Domain adaptation considers the problem of generalising a model learnt using data from a particular source domain to a different target domain. Often it is difficult to find a suitable single source to adapt from, and one must consider…

Computation and Language · Computer Science 2020-04-20 Xia Cui , Danushka Bollegala

Visual emotion recognition (VER), which aims at understanding humans' emotional reactions toward different visual stimuli, has attracted increasing attention. Given the subjective and ambiguous characteristics of emotion, annotating a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Jiankun Zhu , Sicheng Zhao , Jing Jiang , Wenbo Tang , Zhaopan Xu , Tingting Han , Pengfei Xu , Hongxun Yao

In theory, the success of unsupervised domain adaptation (UDA) largely relies on domain gap estimation. However, for source free UDA, the source domain data can not be accessed during adaptation, which poses great challenge of measuring the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Ziyang Zong , Jun He , Lei Zhang , Hai Huan

Multi-target unsupervised domain adaptation (UDA) aims to learn a unified model to address the domain shift between multiple target domains. Due to the difficulty of obtaining annotations for dense predictions, it has recently been…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Yonghao Xu , Pedram Ghamisi , Yannis Avrithis

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