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相关论文: Neural Collapse in Test-Time Adaptation

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Test-Time Adaptation (TTA) adjusts models using unlabeled test data to handle dynamic distribution shifts. However, existing methods rely on frequent adaptation and high computational cost, making them unsuitable for resource-constrained…

机器学习 · 计算机科学 2025-11-20 Hyeongheon Cha , Dong Min Kim , Hye Won Chung , Taesik Gong , Sung-Ju Lee

An unresolved problem in Deep Learning is the ability of neural networks to cope with domain shifts during test-time, imposed by commonly fixing network parameters after training. Our proposed method Meta Test-Time Training (MT3), however,…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Alexander Bartler , Andre Bühler , Felix Wiewel , Mario Döbler , Bin Yang

Although deep neural networks achieve tremendous success on various classification tasks, the generalization ability drops sheer when training datasets exhibit long-tailed distributions. One of the reasons is that the learned…

机器学习 · 计算机科学 2023-02-27 Xuantong Liu , Jianfeng Zhang , Tianyang Hu , He Cao , Lujia Pan , Yuan Yao

Vision-language models (VLMs) such as CLIP achieve strong zero-shot recognition but degrade significantly under \textit{temporally evolving distribution shifts} common in real-world scenarios (e.g., gradual illumination or seasonal…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Shuang Cui , Jinglin Xu , Yi Li , Xiongxin Tang , Jiangmeng Li , Jiahuan Zhou , Fanjiang Xu , Fuchun Sun , Hui Xiong

Test-time adaptation (TTA) has shown to be effective at tackling distribution shifts between training and testing data by adapting a given model on test samples. However, the online model updating of TTA may be unstable and this is often a…

机器学习 · 计算机科学 2023-02-27 Shuaicheng Niu , Jiaxiang Wu , Yifan Zhang , Zhiquan Wen , Yaofo Chen , Peilin Zhao , Mingkui Tan

Online adaptation to distribution shifts in satellite image segmentation stands as a crucial yet underexplored problem. In this paper, we address source-free and online domain adaptation, i.e., test-time adaptation (TTA), for satellite…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Fahim Faisal Niloy , Kishor Kumar Bhaumik , Simon S. Woo

When continual test-time adaptation (TTA) persists over the long term, errors accumulate in the model and further cause it to predict only a few classes for all inputs, a phenomenon known as model collapse. Recent studies have explored…

机器学习 · 计算机科学 2026-03-05 Taejun Lim , Joong-Won Hwang , Kibok Lee

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…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Wei Li , Jingyang Zhang , Lihao Liu , Guoan Wang , Junjun He , Yang Chen , Lixu Gu

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…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Zhicheng Lin , Xiaolin Wu , Xi Zhang

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…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Yeonguk Yu , Sungho Shin , Seunghyeok Back , Minhwan Ko , Sangjun Noh , Kyoobin Lee

Continual adaptation to domain shifts at test time (CTTA) is crucial for enhancing the intelligence of deep learning enabled IoT applications. However, prevailing TTA methods, which typically update all batch normalization (BN) layers,…

机器学习 · 计算机科学 2025-03-03 Youbing Hu , Yun Cheng , Zimu Zhou , Anqi Lu , Zhiqiang Cao , Zhijun Li

In medical image segmentation tasks, the domain gap caused by the difference in data collection between training and testing data seriously hinders the deployment of pre-trained models in clinical practice. Continual Test-Time Adaptation…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Xiaogang Du , Jiawei Zhang , Tongfei Liu , Tao Lei , Yingbo Wang

Test-time adaptation (TTA) offers a compelling remedy for machine learning (ML) models that degrade under domain shifts, improving generalisation on-the-fly with only unlabelled samples. This flexibility suits real deployments, yet…

机器学习 · 计算机科学 2026-02-09 Sudarshan Sreeram , Young D. Kwon , Cecilia Mascolo

Neural collapse (NC) is a phenomenon that emerges at the terminal phase of the training (TPT) of deep neural networks (DNNs). The features of the data in the same class collapse to their respective sample means and the sample means exhibit…

机器学习 · 统计学 2024-09-09 Wanli Hong , Shuyang Ling

Given the inevitability of domain shifts during inference in real-world applications, test-time adaptation (TTA) is essential for model adaptation after deployment. However, the real-world scenario of continuously changing target…

机器学习 · 计算机科学 2023-11-28 Junyoung Park , Jin Kim , Hyeongjun Kwon , Ilhoon Yoon , Kwanghoon Sohn

Real-world systems often encounter new data over time, which leads to experiencing target domain shifts. Existing Test-Time Adaptation (TTA) methods tend to apply computationally heavy and memory-intensive backpropagation-based approaches…

Federated Learning (FL) enables collaborative model training across distributed clients without sharing raw data, making it ideal for privacy-sensitive applications. However, FL models often suffer performance degradation due to…

Despite progress, deep neural networks still suffer performance declines under distribution shifts between training and test domains, leading to a substantial decrease in Quality of Experience (QoE) for multimedia applications. Existing…

机器学习 · 计算机科学 2024-06-11 Qinting Jiang , Chuyang Ye , Dongyan Wei , Yuan Xue , Jingyan Jiang , Zhi Wang

Recently, test-time adaptation (TTA) has been proposed as a promising solution for addressing distribution shifts. It allows a base model to adapt to an unforeseen distribution during inference by leveraging the information from the batch…

机器学习 · 计算机科学 2023-02-07 Tong Wu , Feiran Jia , Xiangyu Qi , Jiachen T. Wang , Vikash Sehwag , Saeed Mahloujifar , Prateek Mittal

Prompt learning has emerged as an efficient alternative to fine-tuning pre-trained vision-language models (VLMs). Despite its promise, current methods still struggle to maintain tail-class discriminability when adapting to class-imbalanced…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Boyang Guo , Liang Li , Lin Peng , Yuhan Gao , Xichun Sheng , Chenggang Yan