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We use information-theoretic tools to derive a novel analysis of Multi-source Domain Adaptation (MDA) from the representation learning perspective. Concretely, we study joint distribution alignment for supervised MDA with few target labels…

Machine Learning · Computer Science 2023-04-06 Qi Chen , Mario Marchand

Unsupervised domain adaptation (UDA) deals with the adaptation process of a model to an unlabeled target domain while annotated data is only available for a given source domain. This poses a challenging task, as the domain shift between…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Tobias Ringwald , Rainer Stiefelhagen

Convolutional neural networks trained on publicly available medical imaging datasets (source domain) rarely generalise to different scanners or acquisition protocols (target domain). This motivates the active field of domain adaptation.…

Image and Video Processing · Electrical Eng. & Systems 2020-10-06 Thomas Varsavsky , Mauricio Orbes-Arteaga , Carole H. Sudre , Mark S. Graham , Parashkev Nachev , M. Jorge Cardoso

A dominant approach for addressing unsupervised domain adaptation is to map data points for the source and the target domains into an embedding space which is modeled as the output-space of a shared deep encoder. The encoder is trained to…

Machine Learning · Computer Science 2022-09-30 Mohammad Rostami

Unsupervised Domain Adaptation (UDA) endeavors to bridge the gap between a model trained on a labeled source domain and its deployment in an unlabeled target domain. However, current high-performance models demand significant resources,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Minhee Cho , Hyesong Choi , Hayeon Jo , Dongbo Min

Recent LiDAR-based 3D Object Detection (3DOD) methods show promising results, but they often do not generalize well to target domains outside the source (or training) data distribution. To reduce such domain gaps and thus to make 3DOD…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Gyusam Chang , Wonseok Roh , Sujin Jang , Dongwook Lee , Daehyun Ji , Gyeongrok Oh , Jinsun Park , Jinkyu Kim , Sangpil Kim

Unsupervised domain adaptation techniques have been successful for a wide range of problems where supervised labels are limited. The task is to classify an unlabeled `target' dataset by leveraging a labeled `source' dataset that comes from…

Machine Learning · Computer Science 2018-07-10 Issam Laradji , Reza Babanezhad

Learning models on one labeled dataset that generalize well on another domain is a difficult task, as several shifts might happen between the data domains. This is notably the case for lidar data, for which models can exhibit large…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Björn Michele , Alexandre Boulch , Gilles Puy , Tuan-Hung Vu , Renaud Marlet , Nicolas Courty

Unsupervised domain adaptation (UDA) aims to adapt existing models of the source domain to a new target domain with only unlabeled data. Most existing methods suffer from noticeable negative transfer resulting from either the error-prone…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Qianyu Zhou , Zhengyang Feng , Qiqi Gu , Guangliang Cheng , Xuequan Lu , Jianping Shi , Lizhuang Ma

Unsupervised domain adaptation (UDA) plays a crucial role in object detection when adapting a source-trained detector to a target domain without annotated data. In this paper, we propose a novel and effective four-step UDA approach that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Mohamed L. Mekhalfi , Davide Boscaini , Fabio Poiesi

In computer vision, unsupervised domain adaptation (UDA) is an approach to transferring knowledge from a label-rich source domain to a fully-unlabeled target domain. Conventional UDA approaches have two problems. The first problem is that a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Eunseop Lee , Inhan Kim , Daijin Kim

Personalized facial expression recognition (FER) involves adapting a machine learning model using samples from labeled sources and unlabeled target domains. Given the challenges of recognizing subtle expressions with considerable…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Muhammad Osama Zeeshan , Marco Pedersoli , Alessandro Lameiras Koerich , Eric Granger

Recent advances in 3D object detection leveraging multi-view cameras have demonstrated their practical and economical value in various challenging vision tasks. However, typical supervised learning approaches face challenges in achieving…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Gyusam Chang , Jiwon Lee , Donghyun Kim , Jinkyu Kim , Dongwook Lee , Daehyun Ji , Sujin Jang , Sangpil Kim

Unsupervised Domain Adaptation (UDA) aims to transfer the knowledge from the labeled source domain to the unlabeled target domain in the presence of dataset shift. Most existing methods cannot address the domain alignment and class…

Machine Learning · Computer Science 2021-12-22 You-Wei Luo , Chuan-Xian Ren , Zi-Ying Chen

(Unsupervised) Domain Adaptation (DA) seeks for classifying target instances when solely provided with source labeled and target unlabeled examples for training. Learning domain-invariant features helps to achieve this goal, whereas it…

Machine Learning · Computer Science 2019-07-09 Ziliang Chen , Jingyu Zhuang , Xiaodan Liang , Liang Lin

In this work we explore Unsupervised Domain Adaptation (UDA) of pretrained language models for downstream tasks. We introduce UDALM, a fine-tuning procedure, using a mixed classification and Masked Language Model loss, that can adapt to the…

Computation and Language · Computer Science 2021-04-16 Constantinos Karouzos , Georgios Paraskevopoulos , Alexandros Potamianos

Domain shift happens in cross-domain scenarios commonly because of the wide gaps between different domains: when applying a deep learning model well-trained in one domain to another target domain, the model usually performs poorly. To…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Munan Ning , Cheng Bian , Dong Wei , Chenglang Yuan , Yaohua Wang , Yang Guo , Kai Ma , Yefeng Zheng

Unsupervised Domain Adaptation (UDA) aims at classifying unlabeled target images leveraging source labeled ones. In this work, we consider the Partial Domain Adaptation (PDA) variant, where we have extra source classes not present in the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Tiago Salvador , Kilian Fatras , Ioannis Mitliagkas , Adam Oberman

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

Unsupervised Domain Adaptation (UDA) methods have been successful in reducing label dependency by minimizing the domain discrepancy between a labeled source domain and an unlabeled target domain. However, these methods face challenges when…

Machine Learning · Computer Science 2023-11-21 Yucheng Wang , Yuecong Xu , Jianfei Yang , Min Wu , Xiaoli Li , Lihua Xie , Zhenghua Chen