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Time Series Foundation Models (TSFMs) are a powerful paradigm for time series analysis and are often enhanced by synthetic data augmentation to improve the training data quality. Existing augmentation methods, however, typically rely on…

Machine Learning · Computer Science 2026-01-28 Junwei Deng , Chang Xu , Jiaqi W. Ma , Ming Jin , Chenghao Liu , Jiang Bian

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…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Yingkai Yang , Chaoqi Chen , Hui Huang

Test-time adaptation is a promising research direction that allows the source model to adapt itself to changes in data distribution without any supervision. Yet, current methods are usually evaluated on benchmarks that are only a…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Damian Sójka , Sebastian Cygert , Bartłomiej Twardowski , Tomasz Trzciński

Time series forecasting serves as an essential tool for many real-world applications, supporting tasks such as resource optimization and decision-making. Despite significant architectural advancements, most modern models still treat…

Machine Learning · Computer Science 2026-05-12 Sheng Pan , Ming Jin , Bo Du , Shirui Pan

Aligning large language models (LLMs) with diverse and multifaceted user preferences is a fundamental challenge in personalized AI systems. Existing multi-objective alignment methods either rely on costly training or require pre-trained…

Computation and Language · Computer Science 2026-05-26 Linhao Luo , Thuy-Trang Vu , Van-Anh Nguyen , Junae Kim , Gholamreza Haffari , Dinh Phung

Fault detection is crucial in industrial systems to prevent failures and optimize performance by distinguishing abnormal from normal operating conditions. Data-driven methods have been gaining popularity for fault detection tasks as the…

Machine Learning · Computer Science 2024-06-12 Han Sun , Kevin Ammann , Stylianos Giannoulakis , Olga Fink

Continual Test Time Adaptation (CTTA) has emerged as a critical approach for bridging the domain gap between the controlled training environments and the real-world scenarios, enhancing model adaptability and robustness. Existing CTTA…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Hyewon Park , Hyejin Park , Jueun Ko , Dongbo Min

Traditional test-time adaptation (TTA) methods face significant challenges in adapting to dynamic environments characterized by continuously changing long-term target distributions. These challenges primarily stem from two factors:…

Machine Learning · Computer Science 2023-11-10 Fahim Faisal Niloy , Sk Miraj Ahmed , Dripta S. Raychaudhuri , Samet Oymak , Amit K. Roy-Chowdhury

Time series classification (TSC) is fundamental in numerous domains, including finance, healthcare, and environmental monitoring. However, traditional TSC methods often struggle with the inherent complexity and variability of time series…

Machine Learning · Computer Science 2026-02-06 Marcell T. Kurbucz , Balázs Hajós , Balázs P. Halmos , Vince Á. Molnár , Antal Jakovác

Test-time adaptation (TTA) intends to adapt the pretrained model to test distributions with only unlabeled test data streams. Most of the previous TTA methods have achieved great success on simple test data streams such as independently…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Longhui Yuan , Binhui Xie , Shuang Li

Deep Neural Networks have spearheaded remarkable advancements in time series forecasting (TSF), one of the major tasks in time series modeling. Nonetheless, the non-stationarity of time series undermines the reliability of pre-trained…

Machine Learning · Computer Science 2025-01-10 HyunGi Kim , Siwon Kim , Jisoo Mok , Sungroh Yoon

Domain adaptation on time series data is an important but challenging task. Most of the existing works in this area are based on the learning of the domain-invariant representation of the data with the help of restrictions like MMD.…

Machine Learning · Computer Science 2021-06-18 Ruichu Cai , Jiawei Chen , Zijian Li , Wei Chen , Keli Zhang , Junjian Ye , Zhuozhang Li , Xiaoyan Yang , Zhenjie Zhang

Quantizing deep models prior to deployment is a widely adopted technique to speed up inference for various real-time applications, such as autonomous driving. However, quantized models often suffer from severe performance degradation in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Zeshuai Deng , Guohao Chen , Shuaicheng Niu , Hui Luo , Shuhai Zhang , Yifan Yang , Renjie Chen , Wei Luo , Mingkui Tan

Machine learning methods strive to acquire a robust model during the training process that can effectively generalize to test samples, even in the presence of distribution shifts. However, these methods often suffer from performance…

Machine Learning · Computer Science 2024-12-13 Jian Liang , Ran He , Tieniu Tan

Time series forecasting is of significant importance across various domains. However, it faces significant challenges due to distribution shift. This issue becomes particularly pronounced in online deployment scenarios where data arrives…

Machine Learning · Computer Science 2026-02-27 Xiannan Huang , Shuhan Qiu , Jiayuan Du , Chao Yang

Adapting a trained model to perform satisfactorily on continually changing testing domains/environments is an important and challenging task. In this work, we propose a novel framework, SATA, which aims to satisfy the following…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Goirik Chakrabarty , Manogna Sreenivas , Soma Biswas

Domain adaptation (DA) is an important technique for modern machine learning-based medical data analysis, which aims at reducing distribution differences between different medical datasets. A proper domain adaptation method can…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Hao Guan , Mingxia Liu

Time series data play a critical role in various fields, including finance, healthcare, marketing, and engineering. A wide range of techniques (from classical statistical models to neural network-based approaches such as Long Short-Term…

Machine Learning · Computer Science 2026-01-29 Sina Kazemdehbashi

Test-time adaptation (TTA) has recently emerged as a promising approach for improving time series forecasting (TSF) under distribution shift. Existing TSF-TTA methods differ in how they utilize revealed targets, yet the resulting adaptation…

Machine Learning · Computer Science 2026-05-19 Haochun Wang , Ruichen Xu , Georgios Kementzidis , Karen Cho , Sebastian Ramirez Villarreal , Yuefan Deng

This paper proposes a novel online evaluation protocol for Test Time Adaptation (TTA) methods, which penalizes slower methods by providing them with fewer samples for adaptation. TTA methods leverage unlabeled data at test time to adapt to…