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Mainstream test-time adaptation (TTA) techniques endeavor to mitigate distribution shifts via entropy minimization for multi-class classification, inherently increasing the probability of the most confident class. However, when encountering…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Xiangyu Wu , Feng Yu , Qing-Guo Chen , Yang Yang , Jianfeng Lu

Learning discriminative 3D representations that generalize well to unknown testing categories is an emerging requirement for many real-world 3D applications. Existing well-established methods often struggle to attain this goal due to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Zhichuan Wang , Yang Zhou , Jinhai Xiang , Yulong Wang , Xinwei He

Machine learning models for text classification often excel on in-distribution (ID) data but struggle with unseen out-of-distribution (OOD) inputs. Most techniques for improving OOD robustness are not applicable to settings where the model…

Machine Learning · Computer Science 2024-08-06 Kyle O'Brien , Nathan Ng , Isha Puri , Jorge Mendez , Hamid Palangi , Yoon Kim , Marzyeh Ghassemi , Thomas Hartvigsen

Since distribution shifts are likely to occur during test-time and can drastically decrease the model's performance, online test-time adaptation (TTA) continues to update the model after deployment, leveraging the current test data.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Robert A. Marsden , Mario Döbler , Bin Yang

Test-time adaptation (TTA) adapts the pre-trained models to test distributions during the inference phase exclusively employing unlabeled test data streams, which holds great value for the deployment of models in real-world applications.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Shuang Li , Longhui Yuan , Binhui Xie , Tao Yang

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) pre-trained at large scale have shown unprecedented transferability capabilities and are being progressively integrated into medical image analysis. Although its discriminative potential has been widely…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Julio Silva-Rodríguez , Leo Fillioux , Paul-Henry Cournède , Maria Vakalopoulou , Stergios Christodoulidis , Ismail Ben Ayed , Jose Dolz

Recently, data-driven task-oriented dialogue systems have achieved promising performance in English. However, developing dialogue systems that support low-resource languages remains a long-standing challenge due to the absence of…

Computation and Language · Computer Science 2019-11-22 Zihan Liu , Genta Indra Winata , Zhaojiang Lin , Peng Xu , Pascale Fung

Graph-based learning excels at capturing interaction patterns in diverse domains like recommendation, fraud detection, and particle physics. However, its performance often degrades under distribution shifts, especially those altering…

Machine Learning · Computer Science 2026-05-12 Hans Hao-Hsun Hsu , Shikun Liu , Han Zhao , Pan Li

Test-Time Adaptation (TTA) has emerged as a promising solution for adapting a source model to unseen medical sites using unlabeled test data, due to the high cost of data annotation. Existing TTA methods consider scenarios where data from…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Wei Li , Jingyang Zhang , Lihao Liu , Guoan Wang , Junjun He , Yang Chen , Lixu Gu

Vision-language models (VLMs) like CLIP have demonstrated remarkable applicability across a variety of downstream tasks, including zero-shot image classification. Recently, the use of prompts or adapters for efficient transfer learning…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Yongjin Yang , Jongwoo Ko , Se-Young Yun

Pre-trained vision-language models (VLMs) exhibit strong zero-shot generalization but remain vulnerable to adversarial perturbations. Existing classification-guided adversarial fine-tuning methods often disrupt pre-trained cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Yubo Cui , Xianchao Guan , Zijun Xiong , Zheng Zhang

Several recent works seek to develop foundation models specifically for medical applications, adapting general-purpose large language models (LLMs) and vision-language models (VLMs) via continued pretraining on publicly available biomedical…

Computation and Language · Computer Science 2024-11-21 Daniel P. Jeong , Saurabh Garg , Zachary C. Lipton , Michael Oberst

Zero-shot action recognition, which addresses the issue of scalability and generalization in action recognition and allows the models to adapt to new and unseen actions dynamically, is an important research topic in computer vision…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Jidong Kuang , Hongsong Wang , Chaolei Han , Yang Zhang , Jie Gui

Test-time adaptation (TTA) aims to adapt a pre-trained model to a new test domain without access to source data after deployment. Existing approaches typically rely on self-training with pseudo-labels since ground-truth cannot be obtained…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Yeonguk Yu , Sungho Shin , Seunghyeok Back , Minhwan Ko , Sangjun Noh , Kyoobin Lee

Deep neural networks often suffer performance degradation upon deployment due to distribution shifts. Continual Test-Time Adaptation (CTTA) aims to address this issue in an unsupervised manner. However, existing methods that rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Xiao Chen , Jiazhen Huang , Zhiming Liu , Qinting Jiang , Fanding Huang , Jingyan Jiang , Zhi Wang

Zero-shot learning (ZSL) aims to recognize unseen classes without visual instances. However, existing methods usually assume clean labels, overlooking real-world label noise and ambiguity, which degrades performance. To bridge this gap, we…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Jiangnan Li , Linqing Huang , Xiaowen Yan , Min Gan , Wenpeng Lu , Jinfu Fan

Test-time adaptation (TTA) is crucial in maintaining performance of Vision Language Models (VLMs) when facing distribution shifts, particularly when the source data or target labels are inaccessible. Existing TTA methods predominantly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Xiaozhen Qiao , Peng Huang , Jiakang Yuan , Xianda Guo , Bowen Ye , Chaocan Xue , Ye Zheng , Zhe Sun , Xuelong Li

Test-time adaptation (TTA) of visual language models has recently attracted significant attention as a solution to the performance degradation caused by distribution shifts in downstream tasks. However, existing cache-based TTA methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Haotian Zhai , Xinyu Chen , Can Zhang , Tianming Sha , Ruirui 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