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Models capable of leveraging unlabelled data are crucial in overcoming large distribution gaps between the acquired datasets across different imaging devices and configurations. In this regard, self-training techniques based on…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Negin Ghamsarian , Javier Gamazo Tejero , Pablo Márquez Neila , Sebastian Wolf , Martin Zinkernagel , Klaus Schoeffmann , Raphael Sznitman

Test-time adaptation (TTA) enables neural forecasters to adapt to distribution shifts in streaming time series, but existing methods apply the same adaptation intensity regardless of the nature of the shift. We propose Regime-Guided…

Machine Learning · Computer Science 2026-03-31 Indar Kumar , Akanksha Tiwari , Sai Krishna Jasti , Ankit Hemant Lade

We introduce Generalized Test-Time Augmentation (GTTA), a highly effective method for improving the performance of a trained model, which unlike other existing Test-Time Augmentation approaches from the literature is general enough to be…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Andrei Jelea , Ahmed Nabil Belbachir , Marius Leordeanu

Vision-language models (VLMs) like CLIP excel in zero-shot learning by aligning image and text representations through contrastive pretraining. Existing approaches to unsupervised adaptation (UA) for fine-grained classification with VLMs…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Eman Ali , Sathira Silva , Chetan Arora , Muhammad Haris Khan

Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance for medical image segmentation, yet need plenty of manual annotations for training. Semi-Supervised Learning (SSL) methods are promising to reduce the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Ran Gu , Jingyang Zhang , Guotai Wang , Wenhui Lei , Tao Song , Xiaofan Zhang , Kang Li , Shaoting Zhang

Medical image analysis using deep learning is often challenged by limited labeled data and high annotation costs. Fine-tuning the entire network in label-limited scenarios can lead to overfitting and suboptimal performance. Recently, prompt…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Fan Bai , Ke Yan , Xiaoyu Bai , Xinyu Mao , Xiaoli Yin , Jingren Zhou , Yu Shi , Le Lu , Max Q. -H. Meng

Despite the growing integration of deep models into mobile terminals, the accuracy of these models declines significantly due to various deployment interferences. Test-time adaptation (TTA) has emerged to improve the performance of deep…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Ke Ma , Jiaqi Tang , Bin Guo , Fan Dang , Sicong Liu , Zhui Zhu , Lei Wu , Cheng Fang , Ying-Cong Chen , Zhiwen Yu , Yunhao Liu

Learning rate adaptation is a popular topic in machine learning. Gradient Descent trains neural nerwork with a fixed learning rate. Learning rate adaptation is proposed to accelerate the training process through adjusting the step size in…

Machine Learning · Computer Science 2022-10-20 Bozhou Chen , Hongzhi Wang , Chenmin Ba

Training data attribution (TDA) methods ask which training documents are responsible for a model behavior. However, models often learn broad concepts shared across many examples. Moreover, existing TDA methods are supervised -- they require…

Artificial Intelligence · Computer Science 2026-03-18 J Rosser

In recent years, large pre-trained Transformer-based language models have led to dramatic improvements in many natural language understanding tasks. To train these models with increasing sizes, many neural network practitioners attempt to…

Machine Learning · Computer Science 2022-02-01 Minjia Zhang , Niranjan Uma Naresh , Yuxiong He

Manual annotation of 3D medical images for segmentation tasks is tedious and time-consuming. Moreover, data privacy limits the applicability of crowd sourcing to perform data annotation in medical domains. As a result, training deep neural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Ruitong Sun , Mohammad Rostami

Current visual detectors, though impressive within their training distribution, often fail to parse out-of-distribution scenes into their constituent entities. Recent test-time adaptation methods use auxiliary self-supervised losses to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Mihir Prabhudesai , Anirudh Goyal , Sujoy Paul , Sjoerd van Steenkiste , Mehdi S. M. Sajjadi , Gaurav Aggarwal , Thomas Kipf , Deepak Pathak , Katerina Fragkiadaki

Continual Test-Time Adaptation (CTTA) aims to adapt the source model to continually changing unlabeled target domains without access to the source data. Existing methods mainly focus on model-based adaptation in a self-training manner, such…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Yulu Gan , Yan Bai , Yihang Lou , Xianzheng Ma , Renrui Zhang , Nian Shi , Lin Luo

Video-language alignment is a crucial multi-modal task that benefits various downstream applications, e.g., video-text retrieval and video question answering. Existing methods either utilize multi-modal information in video-text pairs or…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Shi-Xue Zhang , Hongfa Wang , Xiaobin Zhu , Weibo Gu , Tianjin Zhang , Chun Yang , Wei Liu , Xu-Cheng Yin

In natural language processing tasks, pure reinforcement learning (RL) fine-tuning methods often suffer from inefficient exploration and slow convergence; while supervised fine-tuning (SFT) methods, although efficient in training, have…

Computation and Language · Computer Science 2025-09-17 Min Zeng , Jingfei Sun , Xueyou Luo , Caiquan Liu , Shiqi Zhang , Li Xie , Xiaoxin Chen

Continual Test-Time Adaptation (CTTA) is proposed to migrate a source pre-trained model to continually changing target distributions, addressing real-world dynamism. Existing CTTA methods mainly rely on entropy minimization or…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Jiaming Liu , Ran Xu , Senqiao Yang , Renrui Zhang , Qizhe Zhang , Zehui Chen , Yandong Guo , Shanghang Zhang

Deep learning methods typically depend on the availability of labeled data, which is expensive and time-consuming to obtain. Active learning addresses such effort by prioritizing which samples are best to annotate in order to maximize the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Mélanie Gaillochet , Christian Desrosiers , Hervé Lombaert

Medical image segmentation data inherently contain uncertainty. This can stem from both imperfect image quality and variability in labeling preferences on ambiguous pixels, which depend on annotator expertise and the clinical context of the…

Image and Video Processing · Electrical Eng. & Systems 2025-07-17 Jiayuan Zhu , Junde Wu , Cheng Ouyang , Konstantinos Kamnitsas , J. Alison Noble

Despite great progress in supervised semantic segmentation,a large performance drop is usually observed when deploying the model in the wild. Domain adaptation methods tackle the issue by aligning the source domain and the target domain.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Haoran Wang , Tong Shen , Wei Zhang , Lingyu Duan , Tao Mei

Existing video highlight detection methods, although advanced, struggle to generalize well to all test videos. These methods typically employ a generic highlight detection model for each test video, which is suboptimal as it fails to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Zahidul Islam , Sujoy Paul , Mrigank Rochan
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