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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

The growing deployment of low-cost, distributed sensor networks in environmental and biomedical domains has enabled continuous, large-scale health monitoring. However, these systems often face challenges related to degraded data quality…

机器学习 · 计算机科学 2025-08-07 Keivan Faghih Niresi , Ismail Nejjar , Olga Fink

Long-term time series forecasting is a long-standing challenge in various applications. A central issue in time series forecasting is that methods should expressively capture long-term dependency. Furthermore, time series forecasting…

机器学习 · 计算机科学 2024-11-06 Xingyu Zhang , Siyu Zhao , Zeen Song , Huijie Guo , Jianqi Zhang , Changwen Zheng , Wenwen Qiang

World models have recently emerged as a promising approach to reinforcement learning (RL), achieving state-of-the-art performance across a wide range of visual control tasks. This work aims to obtain a deep understanding of the robustness…

机器学习 · 计算机科学 2025-01-03 Qiaoyi Fang , Weiyu Du , Hang Wang , Junshan Zhang

Existing domain generalization aims to learn a generalizable model to perform well even on unseen domains. For many real-world machine learning applications, the data distribution often shifts gradually along domain indices. For example, a…

计算机视觉与模式识别 · 计算机科学 2023-03-09 Qiuhao Zeng , Wei Wang , Fan Zhou , Charles Ling , Boyu Wang

Probabilistic forecasting of complex phenomena is paramount to various scientific disciplines and applications. Despite the generality and importance of the problem, general mathematical techniques that allow for stable long-term forecasts…

机器学习 · 计算机科学 2021-06-14 Alex Mallen , Henning Lange , J. Nathan Kutz

In open-world scenarios, where both novel classes and domains may exist, an ideal segmentation model should detect anomaly classes for safety and generalize to new domains. However, existing methods often struggle to distinguish between…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Zhitong Gao , Bingnan Li , Mathieu Salzmann , Xuming He

Forecasting physical systems over long horizons from irregularly sampled observations demands models that are stable, computationally efficient, and free of fixed-timestep assumptions. We address this with a continuous-time Koopman…

机器学习 · 计算机科学 2026-05-11 Rares Grozavescu , Pengyu Zhang , Etienne Meunier , Mark Girolami

Generalization to out-of-distribution (OOD) data is a capability natural to humans yet challenging for machines to reproduce. This is because most learning algorithms strongly rely on the i.i.d.~assumption on source/target data, which is…

机器学习 · 计算机科学 2022-08-15 Kaiyang Zhou , Ziwei Liu , Yu Qiao , Tao Xiang , Chen Change Loy

Domain generalization (DG) focuses on transferring domain-invariant knowledge from multiple source domains (available at train time) to an, a priori, unseen target domain(s). This requires a class to be expressed in multiple domains for the…

机器学习 · 计算机科学 2023-06-02 Kimathi Kaai , Saad Hossain , Sirisha Rambhatla

Recurrent neural networks are widely used on time series data, yet such models often ignore the underlying physical structures in such sequences. A new class of physics-based methods related to Koopman theory has been introduced, offering…

计算物理 · 物理学 2020-07-01 Omri Azencot , N. Benjamin Erichson , Vanessa Lin , Michael W. Mahoney

Despite domain generalization (DG) has significantly addressed the performance degradation of pre-trained models caused by domain shifts, it often falls short in real-world deployment. Test-time adaptation (TTA), which adjusts a learned…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Xingguo Lv , Xingbo Dong , Liwen Wang , Jiewen Yang , Lei Zhao , Bin Pu , Zhe Jin , Xuejun Li

Neural ODEs (NODEs) have emerged as powerful tools for modeling time series data, offering the flexibility to adapt to varying input scales and capture complex dynamics. However, they face significant challenges: first, their reliance on…

机器学习 · 计算机科学 2025-10-07 Muhao Guo , Yang Weng

Time-series data augmentation mitigates the issue of insufficient training data for deep learning models. Yet, existing augmentation methods are mainly designed for classification, where class labels can be preserved even if augmentation…

机器学习 · 计算机科学 2023-03-28 Xiyuan Zhang , Ranak Roy Chowdhury , Jingbo Shang , Rajesh Gupta , Dezhi Hong

Fourier analysis has been an instrumental tool in the development of signal processing. This leads us to wonder whether this framework could similarly benefit generative modelling. In this paper, we explore this question through the scope…

机器学习 · 计算机科学 2024-02-09 Jonathan Crabbé , Nicolas Huynh , Jan Stanczuk , Mihaela van der Schaar

Flight trajectory prediction (FTP) and similar time series tasks typically require capturing smooth latent dynamics hidden within noisy signals. However, existing deep learning models face significant challenges of high computational cost…

机器学习 · 计算机科学 2025-10-28 Jing Lu , Xuan Wu , Yizhun Tian , Songhan Fan , Yali Fang

A data-driven, model-free approach to modeling the temporal evolution of physical systems mitigates the need for explicit knowledge of the governing equations. Even when physical priors such as partial differential equations are available,…

机器学习 · 计算机科学 2026-03-12 Siyuan Chen , Zhecheng Wang , Yixin Chen , Yue Chang , Peter Yichen Chen , Eitan Grinspun , Jonathan Panuelos

Domain Generalized Video Semantic Segmentation (DGVSS) is trained on a single labeled driving domain and is directly deployed on unseen domains without target labels and test-time adaptation while maintaining temporally consistent…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Siyu Chen , Ting Han , Haoling Huang , Chaolei Wang , Chengzheng Fu , Duxin Zhu , Guorong Cai , Jinhe Su

Traditional Transformers face a major bottleneck in long-sequence time series forecasting due to their quadratic complexity $(\mathcal{O}(T^2))$ and their limited ability to effectively exploit frequency-domain information. Inspired by…

机器学习 · 计算机科学 2025-12-10 Qingyuan Yang , Shizhuo Deng , Dongyue Chen , Da Teng , Zehua Gan

The annotation scarcity of medical image segmentation poses challenges in collecting sufficient training data for deep learning models. Specifically, models trained on limited data may not generalize well to other unseen data domains,…

图像与视频处理 · 电气工程与系统科学 2023-07-19 Heng Li , Haojin Li , Wei Zhao , Huazhu Fu , Xiuyun Su , Yan Hu , Jiang Liu