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Open Set Domain Adaptation (OSDA) bridges the domain gap between a labeled source domain and an unlabeled target domain, while also rejecting target classes that are not present in the source. To avoid negative transfer, OSDA can be tackled…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Silvia Bucci , Mohammad Reza Loghmani , Tatiana Tommasi

Domain adaptation from one data space (or domain) to another is one of the most challenging tasks of modern data analytics. If the adaptation is done correctly, models built on a specific data space become more robust when confronted to…

Machine Learning · Computer Science 2016-06-23 Nicolas Courty , Rémi Flamary , Devis Tuia , Alain Rakotomamonjy

State-of-the-art 3D semantic segmentation models are trained on off-the-shelf public benchmarks, but they will inevitably face the challenge of recognition accuracy drop when these well-trained models are deployed to a new domain. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Ben Fei , Siyuan Huang , Jiakang Yuan , Botian Shi , Bo Zhang , Weidong Yang , Min Dou , Yikang Li

Optimal Transport (OT) has proven effective for domain adaptation (DA) by aligning distributions across domains with differing statistical properties. Building on the approach of Courty et al. (2016), who mapped source data to the target…

Machine Learning · Statistics 2025-05-15 Brian Britos , Mathias Bourel

Unsupervised sim-to-real domain adaptation (UDA) for semantic segmentation aims to improve the real-world test performance of a model trained on simulated data. It can save the cost of manually labeling data in real-world applications such…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Rui Gong , Qin Wang , Dengxin Dai , Luc Van Gool

In Open Set Domain Adaptation (OSDA), large amounts of target samples are drawn from the implicit categories that never appear in the source domain. Due to the lack of their specific belonging, existing methods indiscriminately regard them…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Jingyu Zhuang , Ziliang Chen , Pengxu Wei , Guanbin Li , Liang Lin

Universal domain adaptation (UniDA) is a practical but challenging problem, in which information about the relation between the source and the target domains is not given for knowledge transfer. Existing UniDA methods may suffer from the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Yanzuo Lu , Meng Shen , Andy J Ma , Xiaohua Xie , Jian-Huang Lai

As a vital problem in pattern analysis and machine intelligence, Unsupervised Domain Adaptation (UDA) attempts to transfer an effective feature learner from a labeled source domain to an unlabeled target domain. Inspired by the success of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Ren Chuan-Xian , Zhai Yi-Ming , Luo You-Wei , Yan Hong

Test-time adaptation (TTA) aims at adapting a model pre-trained on the labeled source domain to the unlabeled target domain. Existing methods usually focus on improving TTA performance under covariate shifts, while neglecting semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Zhengqing Gao , Xu-Yao Zhang , Cheng-Lin Liu

Open Set Domain Adaptation (OSDA) aims to adapt a model trained on a source domain to a target domain that undergoes distribution shift and contains samples from novel classes outside the source domain. Source-free OSDA (SF-OSDA) techniques…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Chowdhury Sadman Jahan , Andreas Savakis

Domain adaptation tackles the challenge of generalizing knowledge acquired from a source domain to a target domain with different data distributions. Traditional domain adaptation methods presume that the classes in the source and target…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Xinghong Liu , Yi Zhou , Tao Zhou , Jie Qin , Shengcai Liao

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to a different unlabeled target domain. Most existing UDA methods focus on learning domain-invariant feature representation, either from…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Tongkun Xu , Weihua Chen , Pichao Wang , Fan Wang , Hao Li , Rong Jin

Unsupervised Domain Adaptive Object Detection (UDA-OD) uses unlabelled data to improve the reliability of robotic vision systems in open-world environments. Previous approaches to UDA-OD based on self-training have been effective in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Nicolas Harvey Chapman , Feras Dayoub , Will Browne , Christopher Lehnert

Optimal Transport (OT) problems are a cornerstone of many applications, but solving them is computationally expensive. To address this problem, we propose UNOT (Universal Neural Optimal Transport), a novel framework capable of accurately…

Machine Learning · Computer Science 2026-02-11 Jonathan Geuter , Gregor Kornhardt , Ingimar Tomasson , Vaios Laschos

In the unsupervised open set domain adaptation (UOSDA), the target domain contains unknown classes that are not observed in the source domain. Researchers in this area aim to train a classifier to accurately: 1) recognize unknown target…

Machine Learning · Computer Science 2020-06-24 Li Zhong , Zhen Fang , Feng Liu , Bo Yuan , Guangquan Zhang , Jie Lu

Open-Set Domain Adaptation (OSDA) assumes that a target domain contains unknown classes, which are not discovered in a source domain. Existing domain adversarial learning methods are not suitable for OSDA because distribution matching with…

Machine Learning · Computer Science 2022-10-25 JoonHo Jang , Byeonghu Na , DongHyeok Shin , Mingi Ji , Kyungwoo Song , Il-Chul Moon

One-shot medical landmark detection gains much attention and achieves great success for its label-efficient training process. However, existing one-shot learning methods are highly specialized in a single domain and suffer domain preference…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Heqin Zhu , Quan Quan , Qingsong Yao , Zaiyi Liu , S. Kevin Zhou

Unsupervised domain adaptation (UDA) has been successfully applied to transfer knowledge from a labeled source domain to target domains without their labels. Recently introduced transferable prototypical networks (TPN) further addresses…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Fangxu Xing , Jia You , Jun Lu , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

In this paper, we propose to tackle the problem of reducing discrepancies between multiple domains referred to as multi-source domain adaptation and consider it under the target shift assumption: in all domains we aim to solve a…

Machine Learning · Statistics 2019-03-15 Ievgen Redko , Nicolas Courty , Rémi Flamary , Devis Tuia

Unsupervised domain adaptation~(UDA) aims at reducing the distribution discrepancy when transferring knowledge from a labeled source domain to an unlabeled target domain. Previous UDA methods assume that the source and target domains share…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Chuan-Xian Ren , Pengfei Ge , Peiyi Yang , Shuicheng Yan