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A common challenge in real world classification scenarios with sequentially appending target domain data is insufficient training datasets during the training phase. Therefore, conventional deep learning and transfer learning classifiers…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Tobias Schlagenhauf , Tim Scheurenbrand

Contrastive learning has demonstrated great effectiveness in representation learning especially for image classification tasks. However, there is still a shortage in the studies targeting regression tasks, and more specifically applications…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Mohamad Dhaini , Maxime Berar , Paul Honeine , Antonin Van Exem

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…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Xianghong Fang , Haoli Bai , Ziyi Guo , Bin Shen , Steven Hoi , Zenglin Xu

Test-time training (TTT) enhances model performance by explicitly updating designated parameters prior to each prediction to adapt to the test data. While TTT has demonstrated considerable empirical success, its theoretical underpinnings…

Machine Learning · Statistics 2026-02-03 Kento Kuwataka , Taiji Suzuki

Representation learning for time series using contrastive learning has emerged as a critical technique for improving the performance of downstream tasks. To advance this effective approach, we introduce CaTT (\textit{Contrast All The…

Machine Learning · Computer Science 2025-07-16 Abdul-Kazeem Shamba , Kerstin Bach , Gavin Taylor

Despite domain-adaptive object detectors based on CNN and transformers have made significant progress in cross-domain detection tasks, it is regrettable that domain adaptation for real-time transformer-based detectors has not yet been…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Feng Lv , Guoqing Li , Jin Li , Chunlong Xia

Self-supervised pre-training of deep learning models with contrastive learning is a widely used technique in image analysis. Current findings indicate a strong potential for contrastive pre-training on medical images. However, further…

Image and Video Processing · Electrical Eng. & Systems 2024-10-21 Daniel Wolf , Tristan Payer , Catharina Silvia Lisson , Christoph Gerhard Lisson , Meinrad Beer , Michael Götz , Timo Ropinski

Deep neural networks have demonstrated their ability to automatically extract meaningful features from data. However, in supervised learning, information specific to the dataset used for training, but irrelevant to the task at hand, may…

Machine Learning · Computer Science 2022-11-23 David Bertoin , Emmanuel Rachelson

Recently, self-supervised vision transformers have attracted unprecedented attention for their impressive representation learning ability. However, the dominant method, contrastive learning, mainly relies on an instance discrimination…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Luya Wang , Feng Liang , Yangguang Li , Honggang Zhang , Wanli Ouyang , Jing Shao

In neutrino physics, analyses often depend on large simulated datasets, making it essential for models to generalise effectively to real-world detector data. Contrastive learning, a well-established technique in deep learning, offers a…

High Energy Physics - Experiment · Physics 2025-05-23 Alex Wilkinson , Radi Radev , Saul Alonso-Monsalve

Despite their recent success, deep neural networks continue to perform poorly when they encounter distribution shifts at test time. Many recently proposed approaches try to counter this by aligning the model to the new distribution prior to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Samarth Sinha , Peter Gehler , Francesco Locatello , Bernt Schiele

Medical image segmentation plays a crucial role in clinical diagnosis and treatment planning. Although models based on convolutional neural networks (CNNs) and Transformers have achieved remarkable success in medical image segmentation…

Image and Video Processing · Electrical Eng. & Systems 2024-10-04 Jiashu Xu

Deep models often suffer significant performance degradation under distribution shifts. Domain generalization (DG) seeks to mitigate this challenge by enabling models to generalize to unseen domains. Most prior approaches rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Zhicheng Lin , Xiaolin Wu , Xi Zhang

Test-Time Adaptation (TTA) aims to enhance the generalization of deep learning models when faced with test data that exhibits distribution shifts from the training data. In this context, only a pre-trained model and unlabeled test data are…

Machine Learning · Computer Science 2025-05-19 Linjing You , Jiabao Lu , Xiayuan Huang , Xiangli Nie

Change detection is one of the central problems in earth observation and was extensively investigated over recent decades. In this paper, we propose a novel recurrent convolutional neural network (ReCNN) architecture, which is trained to…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Lichao Mou , Lorenzo Bruzzone , Xiao Xiang Zhu

Sequential recommendation tasks, which aim to predict the next item a user will interact with, typically rely on models trained solely on historical data. However, in real-world scenarios, user behavior can fluctuate in the long interaction…

Information Retrieval · Computer Science 2024-10-01 Zhaoqi Yang , Yanan Wang , Yong Ge

Domain adaptation refers to the process of learning prediction models in a target domain by making use of data from a source domain. Many classic methods solve the domain adaptation problem by establishing a common latent space, which may…

Machine Learning · Computer Science 2018-08-21 Pan Xiao , Bo Du , Jia Wu , Lefei Zhang , Ruimin Hu , Xuelong Li

Text understanding often suffers from domain shifts. To handle testing domains, domain adaptation (DA) is trained to adapt to a fixed and observed testing domain; a more challenging paradigm, test-time adaptation (TTA), cannot access the…

Computation and Language · Computer Science 2026-01-05 Tianlun Liu , Zhiliang Tian , Zhen Huang , Xingzhi Zhou , Wanlong Yu , Tianle Liu , Feng Liu , Dongsheng Li

Generalizing neural networks to unseen target domains is a significant challenge in real-world deployments. Test-time training (TTT) addresses this by using an auxiliary self-supervised task to reduce the domain gap caused by distribution…

Machine Learning · Computer Science 2025-07-22 Wooseong Jeong , Jegyeong Cho , Youngho Yoon , Kuk-Jin Yoon

Time series anomaly detection is critical for a wide range of applications. It aims to identify deviant samples from the normal sample distribution in time series. The most fundamental challenge for this task is to learn a representation…

Machine Learning · Computer Science 2023-10-12 Yiyuan Yang , Chaoli Zhang , Tian Zhou , Qingsong Wen , Liang Sun