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Test-time adaptation (TTA) methods, which generally rely on the model's predictions (e.g., entropy minimization) to adapt the source pretrained model to the unlabeled target domain, suffer from noisy signals originating from 1) incorrect or…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Jungsoo Lee , Debasmit Das , Jaegul Choo , Sungha Choi

In a large cyber-physical system, a temporal inconsistency of an output value can arise if there is a non-negligible delay between the instant when a sensor value is acquired from the environment and the instant when a setpoint, based on…

网络与互联网体系结构 · 计算机科学 2024-10-01 Hermann Kopetz , Wilfried Steiner

Given the rapidly evolving nature of social media and people's views, word usage changes over time. Consequently, the performance of a classifier trained on old textual data can drop dramatically when tested on newer data. While research in…

计算与语言 · 计算机科学 2021-08-31 Rabab Alkhalifa , Elena Kochkina , Arkaitz Zubiaga

Continual Test-Time Adaptation (CTTA) aims to empower perception systems to handle dynamic distribution shifts encountered after deployment. Existing methods predominantly follow a backward-alignment paradigm, which rigidly aligns incoming…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Zhilin Zhu , Yabin Wang , Zhiheng Ma , Yaguang Song , Yaowei Wang , Xiaopeng Hong

Test-time adaptation (TTA) refers to adapting neural networks to distribution shifts, with access to only the unlabeled test samples from the new domain at test-time. Prior TTA methods optimize over unsupervised objectives such as the…

机器学习 · 计算机科学 2022-11-24 Sachin Goyal , Mingjie Sun , Aditi Raghunathan , Zico Kolter

Continual Test-Time Adaptation (CTTA) aims to quickly fine-tune the model during the test phase so that it can adapt to multiple unknown downstream domain distributions without pre-acquiring downstream domain data. To this end, existing…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Jiahuan Zhou , Chao Zhu , Zhenyu Cui , Zichen Liu , Xu Zou , Gang Hua

Source-free test-time adaptation (TTA) is appealing for mobile and wearable sensing because it enables on-device personalization from unlabeled test streams without centralizing private data. However, sensor-based human activity recognition…

人工智能 · 计算机科学 2026-04-29 Changyu Li , Lu Wang , Ming Lei , Jiashen Liu , Yichen Zhang , Kaishun Wu , Fei Luo

Experiencing domain shifts during test-time is nearly inevitable in practice and likely results in a severe performance degradation. To overcome this issue, test-time adaptation continues to update the initial source model during…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Robert A. Marsden , Mario Döbler , Bin Yang

Data distribution shift is a common problem in machine learning-powered smart city applications where the test data differs from the training data. Augmenting smart city applications with online machine learning models can handle this issue…

机器学习 · 计算机科学 2026-02-16 Shawqi Al-Maliki , Faissal El Bouanani , Mohamed Abdallah , Junaid Qadir , Ala Al-Fuqaha

In this paper, our goal is to adapt a pre-trained convolutional neural network to domain shifts at test time. We do so continually with the incoming stream of test batches, without labels. The existing literature mostly operates on…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Tommie Kerssies , Mert Kılıçkaya , Joaquin Vanschoren

In the pursuit of autonomous learning systems, the foundational assumption of stationarity, the premise that data distributions and model behaviors remain constant, is fundamentally untenable. Historically, the research community has…

机器学习 · 计算机科学 2026-05-05 Xiaoyu Yang , En Yu , Jie Lu

Test-Time Adaptation (TTA) allows to update pre-trained models to changing data distributions at deployment time. While early work tested these algorithms for individual fixed distribution shifts, recent work proposed and applied methods…

机器学习 · 计算机科学 2024-04-04 Ori Press , Steffen Schneider , Matthias Kümmerer , Matthias Bethge

In Test-time Adaptation (TTA), given a source model, the goal is to adapt it to make better predictions for test instances from a different distribution than the source. Crucially, TTA assumes no access to the source data or even any…

计算机视觉与模式识别 · 计算机科学 2022-09-08 Ansh Khurana , Sujoy Paul , Piyush Rai , Soma Biswas , Gaurav Aggarwal

Recently, diffusion-based test-time adaptations (TTA) have shown great advances, which leverage a diffusion model to map the images in the unknown test domain to the training domain. The unseen and diverse test domains make diffusion-based…

机器学习 · 计算机科学 2025-03-13 Kaiyu Song , Hanjiang Lai , Yan Pan , Kun Yue , Jian Yin

Test-time adaptation (TTA) aims to adapt a trained classifier using online unlabeled test data only, without any information related to the training procedure. Most existing TTA methods adapt the trained classifier using the classifier's…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Minguk Jang , Sae-Young Chung , Hye Won Chung

Convolutional Neural Networks (ConvNets) are trained offline using the few available data and may therefore suffer from substantial accuracy loss when ported on the field, where unseen input patterns received under unpredictable external…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Luca Mocerino , Roberto G. Rizzo , Valentino Peluso , Andrea Calimera , Enrico Macii

Multimodal sentiment analysis (MSA) is an emerging research topic that aims to understand and recognize human sentiment or emotions through multiple modalities. However, in real-world dynamic scenarios, the distribution of target data is…

机器学习 · 计算机科学 2025-02-11 Zirun Guo , Tao Jin , Wenlong Xu , Wang Lin , Yangyang Wu

Test-Time Adaptation (TTA) aims to mitigate distributional shifts between training and test domains during inference time. However, existing TTA methods fall short in the realistic scenario where models face both continually changing…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Yingkai Yang , Chaoqi Chen , Hui Huang

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…

计算机视觉与模式识别 · 计算机科学 2025-02-07 Xiangyu Wu , Feng Yu , Qing-Guo Chen , Yang Yang , Jianfeng Lu

Active Domain Adaptation (ADA) aims to maximally boost model adaptation in a new target domain by actively selecting a limited number of target data to annotate.This setting neglects the more practical scenario where training data are…

人工智能 · 计算机科学 2023-11-23 Wenqiao Zhang , Zheqi Lv , Hao Zhou , Jia-Wei Liu , Juncheng Li , Mengze Li , Siliang Tang , Yueting Zhuang