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Unsupervised domain adaptation leverages rich information from a labeled source domain to model an unlabeled target domain. Existing methods attempt to align the cross-domain distributions. However, the statistical representations of the…

机器学习 · 计算机科学 2021-11-04 Youshan Zhang , Brian D. Davison

Partial Domain adaptation (PDA) aims to solve a more practical cross-domain learning problem that assumes target label space is a subset of source label space. However, the mismatched label space causes significant negative transfer. A…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Jian Hu , Hongya Tuo , Shizhao Zhang , Chao Wang , Haowen Zhong , Zhikang Zou , Zhongliang Jing , Henry Leung , Ruping Zou

The accuracy of deep learning (e.g., convolutional neural networks) for an image classification task critically relies on the amount of labeled training data. Aiming to solve an image classification task on a new domain that lacks labeled…

计算机视觉与模式识别 · 计算机科学 2019-01-01 Xianghong Fang , Haoli Bai , Ziyi Guo , Bin Shen , Steven Hoi , Zenglin Xu

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…

计算与语言 · 计算机科学 2021-04-16 Constantinos Karouzos , Georgios Paraskevopoulos , Alexandros Potamianos

Unsupervised domain adaptation (UDA) aims at inferring class labels for unlabeled target domain given a related labeled source dataset. Intuitively, a model trained on source domain normally produces higher uncertainties for unseen data. In…

机器学习 · 计算机科学 2019-07-26 Ligong Han , Yang Zou , Ruijiang Gao , Lezi Wang , Dimitris Metaxas

Unsupervised domain adaptation (UDA) aims to transfer the knowledge from the labeled source domain to the unlabeled target domain. Existing self-training based UDA approaches assign pseudo labels for target data and treat them as ground…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Xiaoqing Guo , Chen Yang , Baopu Li , Yixuan Yuan

Unsupervised domain adaptive object detection aims to adapt a well-trained detector from its original source domain with rich labeled data to a new target domain with unlabeled data. Recently, mainstream approaches perform this task through…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Bo Zhang , Tao Chen , Bin Wang , Ruoyao Li

In time series anomaly detection (TSAD), the scarcity of labeled data poses a challenge to the development of accurate models. Unsupervised domain adaptation (UDA) offers a solution by leveraging labeled data from a related domain to detect…

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

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

While Unsupervised Domain Adaptation (UDA) algorithms, i.e., there are only labeled data from source domains, have been actively studied in recent years, most algorithms and theoretical results focus on Single-source Unsupervised Domain…

机器学习 · 计算机科学 2022-01-05 Yongchun Zhu , Fuzhen Zhuang , Deqing Wang

Domain Adaptation aiming to learn a transferable feature between different but related domains has been well investigated and has shown excellent empirical performances. Previous works mainly focused on matching the marginal feature…

机器学习 · 计算机科学 2020-05-26 Fan Zhou , Changjian Shui , Bincheng Huang , Boyu Wang , Brahim Chaib-draa

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

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,…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Minhee Cho , Hyesong Choi , Hayeon Jo , Dongbo Min

Recent advances in unsupervised domain adaptation (UDA) show that transferable prototypical learning presents a powerful means for class conditional alignment, which encourages the closeness of cross-domain class centroids. However, the…

计算机视觉与模式识别 · 计算机科学 2021-01-12 Xiaofeng Liu , Xiongchang Liu , Bo Hu , Wenxuan Ji , Fangxu Xing , Jun Lu , Jane You , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

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…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Hui Tang , Ke Chen , Kui Jia

Recent advancements in deep learning-based wearable human action recognition (wHAR) have improved the capture and classification of complex motions, but adoption remains limited due to the lack of expert annotations and domain discrepancies…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Indrajeet Ghosh , Garvit Chugh , Abu Zaher Md Faridee , Nirmalya Roy

Unsupervised domain adaptation (UDA) methods facilitate the transfer of models to target domains without labels. However, these methods necessitate a labeled target validation set for hyper-parameter tuning and model selection. In this…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Minghao Chen , Zepeng Gao , Shuai Zhao , Qibo Qiu , Wenxiao Wang , Binbin Lin , Xiaofei He

The task of unsupervised domain adaptation is proposed to transfer the knowledge of a label-rich domain (source domain) to a label-scarce domain (target domain). Matching feature distributions between different domains is a widely applied…

机器学习 · 计算机科学 2018-12-19 Toshihiko Matsuura , Kuniaki Saito , Tatsuya Harada

Unsupervised domain adaptation (UDA) plays a crucial role in addressing distribution shifts in machine learning. In this work, we improve the theoretical foundations of UDA proposed in Acuna et al. (2021) by refining their…

机器学习 · 统计学 2024-10-29 Ziqiao Wang , Yongyi Mao