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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…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Sunghyun Park , Seunghan Yang , Jaegul Choo , Sungrack Yun

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…

Machine Learning · Computer Science 2022-12-06 Sandipan Choudhuri , Suli Adeniye , Arunabha Sen , Hemanth Venkateswara

Scene understanding using multi-modal data is necessary in many applications, e.g., autonomous navigation. To achieve this in a variety of situations, existing models must be able to adapt to shifting data distributions without arduous data…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Cody Simons , Dripta S. Raychaudhuri , Sk Miraj Ahmed , Suya You , Konstantinos Karydis , Amit K. Roy-Chowdhury

In this paper, we study an arguably least restrictive setting of domain adaptation in a sense of practical deployment, where only the interface of source model is available to the target domain, and where the label-space relations between…

Machine Learning · Computer Science 2021-04-13 Bin Deng , Yabin Zhang , Hui Tang , Changxing Ding , Kui Jia

In this paper, we address the problem of unsupervised Domain Adaptation. The need for such an adaptation arises when the distribution of the target data differs from that which is used to develop the model and the ground truth information…

Machine Learning · Computer Science 2022-10-04 Siddharth Roheda , Ashkan Panahi , Hamid Krim

Unsupervised domain adaptive object detection aims to adapt detectors from a labelled source domain to an unlabelled target domain. Most existing works take a two-stage strategy that first generates region proposals and then detects objects…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Dayan Guan , Jiaxing Huang , Aoran Xiao , Shijian Lu , Yanpeng Cao

We study the label shift problem between the source and target domains in general domain adaptation (DA) settings. We consider transformations transporting the target to source domains, which enable us to align the source and target…

Machine Learning · Computer Science 2022-03-03 Trung Le , Dat Do , Tuan Nguyen , Huy Nguyen , Hung Bui , Nhat Ho , Dinh Phung

Learning conditional distributions $\pi^*(\cdot|x)$ is a central problem in machine learning, which is typically approached via supervised methods with paired data $(x,y) \sim \pi^*$. However, acquiring paired data samples is often…

Distribution shift between train (source) and test (target) datasets is a common problem encountered in machine learning applications. One approach to resolve this issue is to use the Unsupervised Domain Adaptation (UDA) technique that…

Motivated by the success of pre-trained language models such as BERT in a broad range of natural language processing (NLP) tasks, recent research efforts have been made for adapting these models for different application domains. Along this…

Computation and Language · Computer Science 2021-12-07 Denghui Zhang , Zixuan Yuan , Yanchi Liu , Hao Liu , Fuzhen Zhuang , Hui Xiong , Haifeng Chen

While data-driven methods such as neural operator have achieved great success in solving differential equations (DEs), they suffer from domain shift problems caused by different learning environments (with data bias or equation changes),…

Machine Learning · Computer Science 2025-05-27 Hao-Ran Yang , Chuan-Xian Ren

Traditional intelligent fault diagnosis of rolling bearings work well only under a common assumption that the labeled training data (source domain) and unlabeled testing data (target domain) are drawn from the same distribution. When the…

Sound · Computer Science 2017-08-01 Bo Zhang , Wei Li , Zhe Tong , Meng Zhang

Addressing the large distribution gap between training and testing data has long been a challenge in machine learning, giving rise to fields such as transfer learning and domain adaptation. Recently, Continuous Domain Adaptation (CDA) has…

Machine Learning · Computer Science 2024-03-19 Hanbing Liu , Jingge Wang , Xuan Zhang , Ye Guo , Yang Li

In semi-supervised domain adaptation (SSDA), a few labeled target samples of each class help the model to transfer knowledge representation from the fully labeled source domain to the target domain. Many existing methods ignore the benefits…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Xinyang Huang , Chuang Zhu , Wenkai Chen

Semantically coherent out-of-distribution (SCOOD) detection aims to discern outliers from the intended data distribution with access to unlabeled extra set. The coexistence of in-distribution and out-of-distribution samples will exacerbate…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Fan Lu , Kai Zhu , Wei Zhai , Kecheng Zheng , Yang Cao

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…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Jogendra Nath Kundu , Naveen Venkat , Rahul M , R. Venkatesh Babu

Unbalanced optimal transport (UOT) provides a principled framework for modeling single-cell transitions and birth-death dynamics, but its high computational cost limits scalability to large-scale datasets. Although single-cell data often…

Machine Learning · Computer Science 2026-05-19 Qiangwei Peng , Lezhi Chen , Peijie Zhou

Unsupervised domain adaptation aims to transfer and adapt knowledge learned from a labeled source domain to an unlabeled target domain. Key components of unsupervised domain adaptation include: (a) maximizing performance on the target, and…

Machine Learning · Statistics 2019-12-20 Kowshik Thopalli , Jayaraman J. Thiagarajan , Rushil Anirudh , Pavan Turaga

Data sets with imbalanced class sizes, where one class size is much smaller than that of others, occur exceedingly often in many applications, including those with biological foundations, such as disease diagnosis and drug discovery.…

Machine Learning · Computer Science 2024-09-05 Nicole Hayes , Ekaterina Merkurjev , Guo-Wei Wei

Current adversarial adaptation methods attempt to align the cross-domain features, whereas two challenges remain unsolved: 1) the conditional distribution mismatch and 2) the bias of the decision boundary towards the source domain. To solve…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Can Qin , Lichen Wang , Qianqian Ma , Yu Yin , Huan Wang , Yun Fu