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We present an approach for unsupervised domain adaptation---with a strong focus on practical considerations of within-domain class imbalance and between-domain class distribution shift---from a class-conditioned domain alignment…

机器学习 · 计算机科学 2020-06-11 Xiang Jiang , Qicheng Lao , Stan Matwin , Mohammad Havaei

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…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Can Zhang , Gim Hee Lee

Test-time adaptation (TTA) aims to adapt a pre-trained model to the target domain in a batch-by-batch manner during inference. While label distributions often exhibit imbalances in real-world scenarios, most previous TTA approaches…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Sunghyun Park , Seunghan Yang , Jaegul Choo , Sungrack Yun

In this paper, we propose a simple model referred as Contradistinguisher (CTDR) for unsupervised domain adaptation whose objective is to jointly learn to contradistinguish on unlabeled target domain in a fully unsupervised manner along with…

机器学习 · 计算机科学 2020-06-12 Sourabh Balgi , Ambedkar Dukkipati

Semantic segmentation requires a lot of training data, which necessitates costly annotation. There have been many studies on unsupervised domain adaptation (UDA) from one domain to another, e.g., from computer graphics to real images.…

计算机视觉与模式识别 · 计算机科学 2022-10-07 Zhijie Wang , Xing Liu , Masanori Suganuma , Takayuki Okatani

Annotation-efficient segmentation of the numerous mitochondria instances from various electron microscopy (EM) images is highly valuable for biological and neuroscience research. Although unsupervised domain adaptation (UDA) methods can…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

Class imbalance naturally exists when train and test models in different domains. Unsupervised domain adaptation (UDA) augments model performance with only accessible annotations from the source domain and unlabeled data from the target…

计算与语言 · 计算机科学 2022-05-27 Yuexin Wu , Xiaolei Huang

Addressing performance degradation in 3D LiDAR semantic segmentation due to domain shifts (e.g., sensor type, geographical location) is crucial for autonomous systems, yet manual annotation of target data is prohibitive. This study…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Abhishek Kaushik , Norbert Haala , Uwe Soergel

The standard closed-set domain adaptation approaches seek to mitigate distribution discrepancies between two domains under the constraint of both sharing identical label sets. However, in realistic scenarios, finding an optimal source…

机器学习 · 计算机科学 2022-12-06 Sandipan Choudhuri , Suli Adeniye , Arunabha Sen , Hemanth Venkateswara

Adversarial adaptation models have demonstrated significant progress towards transferring knowledge from a labeled source dataset to an unlabeled target dataset. Partial domain adaptation (PDA) investigates the scenarios in which the source…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Mohsen Kheirandishfard , Fariba Zohrizadeh , Farhad Kamangar

By leveraging data from a fully labeled source domain, unsupervised domain adaptation (UDA) improves classification performance on an unlabeled target domain through explicit discrepancy minimization of data distribution or adversarial…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Shengjia Zhang , Tiancheng Lin , Yi Xu

This paper proposes a novel approach for unsupervised domain adaptation (UDA) with target shift. Target shift is a problem of mismatch in label distribution between source and target domains. Typically it appears as class-imbalance in…

计算机视觉与模式识别 · 计算机科学 2020-01-28 Ryuhei Takahashi , Atsushi Hashimoto , Motoharu Sonogashira , Masaaki Iiyama

Most current domain adaptation methods address either covariate shift or label shift, but are not applicable where they occur simultaneously and are confounded with each other. Domain adaptation approaches which do account for such…

机器学习 · 统计学 2024-11-12 Calvin McCarter

In this paper, we firstly tackle a more realistic Domain Adaptation (DA) setting: Source-Free Blending-Target Domain Adaptation (SF-BTDA), where we can not access to source domain data while facing mixed multiple target domains without any…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Juepeng Zheng , Yibin Wen , Jinxiao Zhang , Runmin Dong , Haohuan Fu

Current state-of-the-art object detectors can have significant performance drop when deployed in the wild due to domain gaps with training data. Unsupervised Domain Adaptation (UDA) is a promising approach to adapt models for new…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Fuxun Yu , Di Wang , Yinpeng Chen , Nikolaos Karianakis , Tong Shen , Pei Yu , Dimitrios Lymberopoulos , Sidi Lu , Weisong Shi , Xiang Chen

Unsupervised domain adaptation (UDA) typically carries out knowledge transfer from a label-rich source domain to an unlabeled target domain by adversarial learning. In principle, existing UDA approaches mainly focus on the global…

计算机视觉与模式识别 · 计算机科学 2021-03-05 Hui Wang , Jian Tian , Songyuan Li , Hanbin Zhao , Qi Tian , Fei Wu , Xi Li

Standard unsupervised domain adaptation methods adapt models from a source to a target domain using labeled source data and unlabeled target data jointly. In model adaptation, on the other hand, access to the labeled source data is…

计算机视觉与模式识别 · 计算机科学 2023-08-21 David Bruggemann , Christos Sakaridis , Tim Brödermann , Luc Van Gool

Unsupervised domain adaptation (UDA) aims to solve the problem of knowledge transfer from labeled source domain to unlabeled target domain. Recently, many domain adaptation (DA) methods use centroid to align the local distribution of…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Huihuang Chen , Li Li , Jie Chen , Kuo-Yi Lin

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

Given labeled instances on a source domain and unlabeled ones on a target domain, unsupervised domain adaptation aims to learn a task classifier that can well classify target instances. Recent advances rely on domain-adversarial training of…

计算机视觉与模式识别 · 计算机科学 2019-12-18 Hui Tang , Kui Jia