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Deep learning has produced state-of-the-art results for a variety of tasks. While such approaches for supervised learning have performed well, they assume that training and testing data are drawn from the same distribution, which may not…

机器学习 · 计算机科学 2020-02-10 Garrett Wilson , Diane J. Cook

Unsupervised domain adaptation which aims to adapt models trained on a labeled source domain to a completely unlabeled target domain has attracted much attention in recent years. While many domain adaptation techniques have been proposed…

计算机视觉与模式识别 · 计算机科学 2021-10-29 Aadarsh Sahoo , Rutav Shah , Rameswar Panda , Kate Saenko , Abir Das

Domain shift is a well known problem where a model trained on a particular domain (source) does not perform well when exposed to samples from a different domain (target). Unsupervised methods that can adapt to domain shift are highly…

计算机视觉与模式识别 · 计算机科学 2021-08-04 Botos Csaba , Xiaojuan Qi , Arslan Chaudhry , Puneet Dokania , Philip Torr

Unsupervised Domain adaptation methods solve the adaptation problem for an unlabeled target set, assuming that the source dataset is available with all labels. However, the availability of actual source samples is not always possible in…

计算机视觉与模式识别 · 计算机科学 2021-02-19 Vinod K Kurmi , Venkatesh K Subramanian , Vinay P Namboodiri

There is a strong incentive to develop versatile learning techniques that can transfer the knowledge of class-separability from a labeled source domain to an unlabeled target domain in the presence of a domain-shift. Existing domain…

计算机视觉与模式识别 · 计算机科学 2020-04-10 Jogendra Nath Kundu , Naveen Venkat , Rahul M , R. Venkatesh Babu

In conventional domain adaptation, a critical assumption is that there exists a fully labeled domain (source) that contains the same label space as another unlabeled or scarcely labeled domain (target). However, in the real world, there…

机器学习 · 计算机科学 2019-05-01 Shuhan Tan , Jiening Jiao , Wei-Shi Zheng

Universal Domain Adaptation (UNDA) aims to handle both domain-shift and category-shift between two datasets, where the main challenge is to transfer knowledge while rejecting unknown classes which are absent in the labeled source data but…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Kuniaki Saito , Kate Saenko

Most visual recognition methods implicitly assume the data distribution remains unchanged from training to testing. However, in practice domain shift often exists, where real-world factors such as lighting and sensor type change between…

机器学习 · 计算机科学 2015-07-30 Yongxin Yang , Timothy Hospedales

In real-world visual recognition problems, the assumption that the training data (source domain) and test data (target domain) are sampled from the same distribution is often violated. This is known as the domain adaptation problem. In this…

计算机视觉与模式识别 · 计算机科学 2018-04-17 Hongyu Xu , Jingjing Zheng , Azadeh Alavi , Rama Chellappa

The aim of unsupervised domain adaptation is to leverage the knowledge in a labeled (source) domain to improve a model's learning performance with an unlabeled (target) domain -- the basic strategy being to mitigate the effects of…

机器学习 · 计算机科学 2020-10-09 Zhen Fang , Jie Lu , Feng Liu , Junyu Xuan , Guangquan Zhang

In semi-supervised domain adaptation, a few labeled samples per class in the target domain guide features of the remaining target samples to aggregate around them. However, the trained model cannot produce a highly discriminative feature…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Jichang Li , Guanbin Li , Yemin Shi , Yizhou Yu

The recent success of deep neural networks relies on massive amounts of labeled data. For a target task where labeled data is unavailable, domain adaptation can transfer a learner from a different source domain. In this paper, we propose a…

机器学习 · 计算机科学 2017-02-17 Mingsheng Long , Han Zhu , Jianmin Wang , Michael I. Jordan

Domain adaptation aims to transfer knowledge from a labeled source domain to an unlabeled target domain with different distributions. In real-world scenarios, the label spaces of the two domains often have an inclusion relationship, where…

人工智能 · 计算机科学 2026-05-08 Chuan-Xian Ren , Cheng-Jun Guo , Hong Yan

Current unsupervised domain adaptation methods can address many types of distribution shift, but they assume data from the source domain is freely available. As the use of pre-trained models becomes more prevalent, it is reasonable to…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Roshni Sahoo , Divya Shanmugam , John Guttag

Time series anomaly detection is a challenging task with a wide range of real-world applications. Due to label sparsity, training a deep anomaly detector often relies on unsupervised approaches. Recent efforts have been devoted to time…

机器学习 · 计算机科学 2023-04-18 Kwei-Herng Lai , Lan Wang , Huiyuan Chen , Kaixiong Zhou , Fei Wang , Hao Yang , Xia Hu

Domain Adaptation has been widely used to deal with the distribution shift in vision, language, multimedia etc. Most domain adaptation methods learn domain-invariant features with data from both domains available. However, such a strategy…

计算机视觉与模式识别 · 计算机科学 2021-07-15 Ning Ma , Jiajun Bu , Lixian Lu , Jun Wen , Zhen Zhang , Sheng Zhou , Xifeng Yan

In domain adaptation, maximum mean discrepancy (MMD) has been widely adopted as a discrepancy metric between the distributions of source and target domains. However, existing MMD-based domain adaptation methods generally ignore the changes…

计算机视觉与模式识别 · 计算机科学 2017-05-02 Hongliang Yan , Yukang Ding , Peihua Li , Qilong Wang , Yong Xu , Wangmeng Zuo

Unsupervised domain adaptation aims to generalize the supervised model trained on a source domain to an unlabeled target domain. Marginal distribution alignment of feature spaces is widely used to reduce the domain discrepancy between the…

计算机视觉与模式识别 · 计算机科学 2022-05-04 Pengfei Ge , Chuan-Xian Ren , Dao-Qing Dai , Hong Yan

Domain adaptation (DA) is the task of classifying an unlabeled dataset (target) using a labeled dataset (source) from a related domain. The majority of successful DA methods try to directly match the distributions of the source and target…

机器学习 · 统计学 2018-03-22 Twan van Laarhoven , Elena Marchiori

Open-set single-source domain generalization aims to use a single-source domain to learn a robust model that can be generalized to unknown target domains with both domain shifts and label shifts. The scarcity of the source domain and the…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Pengkun Jiao , Na Zhao , Jingjing Chen , Yu-Gang Jiang