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Domain adaptation is critical for learning in new and unseen environments. With domain adversarial training, deep networks can learn disentangled and transferable features that effectively diminish the dataset shift between the source and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Zhangjie Cao , Kaichao You , Mingsheng Long , Jianmin Wang , Qiang Yang

Deep domain adaptation methods can reduce the distribution discrepancy by learning domain-invariant embedddings. However, these methods only focus on aligning the whole data distributions, without considering the class-level relations among…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Weijian Deng , Liang Zheng , Jianbin Jiao

Quadratic discriminant analysis (QDA) is a standard tool for classification due to its simplicity and flexibility. Because the number of its parameters scales quadratically with the number of the variables, QDA is not practical, however,…

Methodology · Statistics 2018-09-06 Binyan Jiang , Xiangyu Wang , Chenlei Leng

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…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Fuxun Yu , Di Wang , Yinpeng Chen , Nikolaos Karianakis , Tong Shen , Pei Yu , Dimitrios Lymberopoulos , Sidi Lu , Weisong Shi , Xiang Chen

The objective of Continual Test-time Domain Adaptation (CTDA) is to gradually adapt a pre-trained model to a sequence of target domains without accessing the source data. This paper proposes a Dynamic Sample Selection (DSS) method for CTDA.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Yanshuo Wang , Jie Hong , Ali Cheraghian , Shafin Rahman , David Ahmedt-Aristizabal , Lars Petersson , Mehrtash Harandi

Multi-source domain adaptation (MSDA) methods aim to transfer knowledge from multiple labeled source domains to an unlabeled target domain. Although current methods achieve target joint distribution identifiability by enforcing minimal…

Machine Learning · Computer Science 2023-12-15 Zijian Li , Ruichu Cai , Guangyi Chen , Boyang Sun , Zhifeng Hao , Kun Zhang

Domain adaptation (DA) offers a valuable means to reuse data and models for new problem domains. However, robust techniques have not yet been considered for time series data with varying amounts of data availability. In this paper, we make…

Machine Learning · Computer Science 2020-05-25 Garrett Wilson , Janardhan Rao Doppa , Diane J. Cook

Compared to unsupervised domain adaptation, semi-supervised domain adaptation (SSDA) aims to significantly improve the classification performance and generalization capability of the model by leveraging the presence of a small amount of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Jichang Li , Guanbin Li , Yizhou Yu

Domain adaptation (DA) has drawn high interest for its capacity to adapt a model trained on labeled source data to perform well on unlabeled or weakly labeled target data from a different domain. Most common DA techniques require concurrent…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Mathilde Bateson , Hoel Kervadec , Jose Dolz , Hervé Lombaert , Ismail Ben Ayed

Unsupervised domain adaptation (UDA) adapts a model trained on one domain (called source) to a novel domain (called target) using only unlabeled data. Due to its high annotation cost, researchers have developed many UDA methods for semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Zhijie Wang , Masanori Suganuma , Takayuki Okatani

Deep learning-based domain adaptation (DA) methods have shown strong performance by learning transferable representations. However, their reliance on mini-batch training limits global distribution modeling, leading to unstable alignment and…

Machine Learning · Computer Science 2025-11-18 Lingkun Luo , Shiqiang Hu , Liming Chen

Due to privacy, storage, and other constraints, there is a growing need for unsupervised domain adaptation techniques in machine learning that do not require access to the data used to train a collection of source models. Existing methods…

Machine Learning · Computer Science 2023-06-01 Maohao Shen , Yuheng Bu , Gregory Wornell

Test-time adaptation (TTA) aims to adapt a trained classifier using online unlabeled test data only, without any information related to the training procedure. Most existing TTA methods adapt the trained classifier using the classifier's…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Minguk Jang , Sae-Young Chung , Hye Won Chung

Universal Domain Adaptation (UniDA) deals with the problem of knowledge transfer between two datasets with domain-shift as well as category-shift. The goal is to categorize unlabeled target samples, either into one of the "known" categories…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Jogendra Nath Kundu , Suvaansh Bhambri , Akshay Kulkarni , Hiran Sarkar , Varun Jampani , R. Venkatesh Babu

In this work, we define and address a novel domain adaptation (DA) problem in semantic scene segmentation, where the target domain not only exhibits a data distribution shift w.r.t. the source domain, but also includes novel classes that do…

Computer Vision and Pattern Recognition · Computer Science 2021-02-17 Maxime Bucher , Tuan-Hung Vu , Matthieu Cord , Patrick Pérez

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…

Machine Learning · Computer Science 2022-01-05 Yongchun Zhu , Fuzhen Zhuang , Deqing Wang

In order to robustly deploy object detectors across a wide range of scenarios, they should be adaptable to shifts in the input distribution without the need to constantly annotate new data. This has motivated research in Unsupervised Domain…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Farzaneh Rezaeianaran , Rakshith Shetty , Rahaf Aljundi , Daniel Olmeda Reino , Shanshan Zhang , Bernt Schiele

Domain adaptation (DA) addresses the challenge of transferring knowledge from a source domain to a target domain where image data distributions may differ. Existing DA methods often require access to source domain data, adversarial…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Debopom Sutradhar , Md. Abdur Rahman , Mohaimenul Azam Khan Raiaan , Reem E. Mohamed , Sami Azam

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

Semi-supervised domain adaptation (SSDA) is to adapt a learner to a new domain with only a small set of labeled samples when a large labeled dataset is given on a source domain. In this paper, we propose a pair-based SSDA method that adapts…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Jeongbeen Yoon , Dahyun Kang , Minsu Cho