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Existing domain generalization (DG) methods for cross-person generalization tasks often face challenges in capturing intra- and inter-domain style diversity, resulting in domain gaps with the target domain. In this study, we explore a novel…

Machine Learning · Computer Science 2024-07-02 Junru Zhang , Lang Feng , Zhidan Liu , Yuhan Wu , Yang He , Yabo Dong , Duanqing Xu

While diffusion models can successfully generate data and make predictions, they are predominantly designed for static images. We propose an approach for efficiently training diffusion models for probabilistic spatiotemporal forecasting,…

Machine Learning · Computer Science 2023-10-12 Salva Rühling Cachay , Bo Zhao , Hailey Joren , Rose Yu

Unsupervised domain transfer is the task of transferring or translating samples from a source distribution to a different target distribution. Current solutions unsupervised domain transfer often operate on data on which the modes of the…

Machine Learning · Computer Science 2019-05-31 Mikołaj Bińkowski , R Devon Hjelm , Aaron Courville

Unsupervised cross-domain person re-identification (Re-ID) faces two key issues. One is the data distribution discrepancy between source and target domains, and the other is the lack of labelling information in target domain. They are…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Lei Qi , Lei Wang , Jing Huo , Luping Zhou , Yinghuan Shi , Yang Gao

This paper addresses domain adaptation challenges in graph data resulting from chronological splits. In a transductive graph learning setting, where each node is associated with a timestamp, we focus on the task of Semi-Supervised Node…

Machine Learning · Computer Science 2024-11-19 Sejun Park , Joo Young Park , Hyunwoo Park

Diffusion models are the mainstream approach for time series generation tasks. However, existing diffusion models for time series generation require retraining the entire framework to introduce specific conditional guidance. There also…

Machine Learning · Computer Science 2025-09-25 Mingchun Sun , Rongqiang Zhao , Hengrui Hu , Songyu Ding , Jie Liu

Test-time adaptation enables models to adapt to evolving domains. However, balancing the tradeoff between preserving knowledge and adapting to domain shifts remains challenging for model adaptation methods, since adapting to domain shifts…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Gabriel Tjio , Jie Zhang , Xulei Yang , Yun Xing , Nhat Chung , Xiaofeng Cao , Ivor W. Tsang , Chee Keong Kwoh , Qing Guo

Chronic diseases such as diabetes pose significant management challenges, particularly due to the risk of complications like hypoglycemia, which require timely detection and intervention. Continuous health monitoring through wearable…

Machine Learning · Computer Science 2026-01-08 Vaibhav Gupta , Florian Grensing , Beyza Cinar , Maria Maleshkova

The ubiquity of missing data has sparked considerable attention and focus on tabular data imputation methods. Diffusion models, recognized as the cutting-edge technique for data generation, demonstrate significant potential in tabular data…

Machine Learning · Computer Science 2024-07-26 Yixin Liu , Thalaiyasingam Ajanthan , Hisham Husain , Vu Nguyen

Diffusion models have attained prominence for their ability to synthesize a probability distribution for a given dataset via a diffusion process, enabling the generation of new data points with high fidelity. However, diffusion processes…

Machine Learning · Computer Science 2024-11-25 Shervin Khalafi , Dongsheng Ding , Alejandro Ribeiro

This study investigates the impact of masking strategies on time series imputation models in healthcare settings. While current approaches predominantly rely on random masking for model evaluation, this practice fails to capture the…

Machine Learning · Computer Science 2025-02-05 Linglong Qian , Yiyuan Yang , Wenjie Du , Jun Wang , Richard Dobsoni , Zina Ibrahim

Domain adaptation refers to the problem of leveraging labeled data in a source domain to learn an accurate model in a target domain where labels are scarce or unavailable. A recent approach for finding a common representation of the two…

Machine Learning · Statistics 2018-03-20 Rui Shu , Hung H. Bui , Hirokazu Narui , Stefano Ermon

Data samples generated by several real world processes are dynamic in nature \textit{i.e.}, their characteristics vary with time. Thus it is not possible to train and tackle all possible distributional shifts between training and inference,…

Machine Learning · Computer Science 2021-10-22 Prabhu Teja Sivaprasad , François Fleuret

Missing data in spatiotemporal systems presents a significant challenge for modern applications, ranging from environmental monitoring to urban traffic management. The integrity of spatiotemporal data often deteriorates due to hardware…

Machine Learning · Computer Science 2025-06-10 Wenying He , Jieling Huang , Junhua Gu , Ji Zhang , Yude Bai

Time series domain adaptation stands as a pivotal and intricate challenge with diverse applications, including but not limited to human activity recognition, sleep stage classification, and machine fault diagnosis. Despite the numerous…

Machine Learning · Computer Science 2024-06-11 Junxiang Wang , Guangji Bai , Wei Cheng , Zhengzhang Chen , Liang Zhao , Haifeng Chen

In the transformative landscape of smart cities, the integration of the cutting-edge web technologies into time series forecasting presents a pivotal opportunity to enhance urban planning, sustainability, and economic growth. The…

Machine Learning · Computer Science 2024-05-10 Ziyi Zhang , Shaogang Ren , Xiaoning Qian , Nick Duffield

Missing data in time series is a challenging issue affecting time series analysis. Missing data occurs due to problems like data drops or sensor malfunctioning. Imputation methods are used to fill in these values, with quality of imputation…

Machine Learning · Computer Science 2023-04-11 Karan Aggarwal , Jaideep Srivastava

Unsupervised domain adaptation aiming to learn a specific task for one domain using another domain data has emerged to address the labeling issue in supervised learning, especially because it is difficult to obtain massive amounts of…

Machine Learning · Computer Science 2019-03-13 Jaeyoon Yoo , Changhwa Park , Yongjun Hong , Sungroh Yoon

Tabular data generation has recently attracted a growing interest due to its different application scenarios. However, generating time series of tabular data, where each element of the series depends on the others, remains a largely…

Machine Learning · Computer Science 2025-04-21 Fabrizio Garuti , Enver Sangineto , Simone Luetto , Lorenzo Forni , Rita Cucchiara

The data distribution commonly evolves over time leading to problems such as concept drift that often decrease classifier performance. Current techniques are not adequate for this problem because they either require detailed knowledge of…

Machine Learning · Computer Science 2022-06-13 Johannes Schneider