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Ensuring both accuracy and robustness in time series prediction is critical to many applications, ranging from urban planning to pandemic management. With sufficient training data where all spatiotemporal patterns are well-represented,…

机器学习 · 计算机科学 2024-04-02 Yue Sun , Chao Chen , Yuesheng Xu , Sihong Xie , Rick S. Blum , Parv Venkitasubramaniam

Missing data is an inevitable and ubiquitous problem for traffic data collection in intelligent transportation systems. Despite extensive research regarding traffic data imputation, there still exist two limitations to be addressed: first,…

机器学习 · 计算机科学 2022-09-02 Yuebing Liang , Zhan Zhao , Lijun Sun

Sleep stage classification is essential for sleep assessment and disease diagnosis. Although previous attempts to classify sleep stages have achieved high classification performance, several challenges remain open: 1) How to effectively…

信号处理 · 电气工程与系统科学 2021-09-07 Ziyu Jia , Youfang Lin , Jing Wang , Xiaojun Ning , Yuanlai He , Ronghao Zhou , Yuhan Zhou , Li-wei H. Lehman

Traffic speed forecasting is one of the core problems in transportation systems. For a more accurate prediction, recent studies started using not only the temporal speed patterns but also the spatial information on the road network through…

机器学习 · 计算机科学 2022-09-27 Kyungeun Lee , Wonjong Rhee

Understanding dynamic systems like disease outbreaks, social influence, and information diffusion requires effective modeling of complex networks. Traditional evaluation methods for static networks often fall short when applied to temporal…

社会与信息网络 · 计算机科学 2025-09-26 Alireza Rashnu , Sadegh Aliakbary

For multimodal skeleton-based action recognition, Graph Convolutional Networks (GCNs) are effective models. Still, their reliance on floating-point computations leads to high energy consumption, limiting their applicability in…

计算机视觉与模式识别 · 计算机科学 2025-10-31 Naichuan Zheng , Yuchen Du , Hailun Xia , Zeyu Liang

Complex spatial dependencies in transportation networks make traffic prediction extremely challenging. Much existing work is devoted to learning dynamic graph structures among sensors, and the strategy of mining spatial dependencies from…

机器学习 · 计算机科学 2023-12-20 Yujie Li , Zezhi Shao , Yongjun Xu , Qiang Qiu , Zhaogang Cao , Fei Wang

Accurate temporal segmentation of human actions is critical for intelligent robots in collaborative settings, where a precise understanding of sub-activity labels and their temporal structure is essential. However, the inherent noise in…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Hao Xing , Kai Zhe Boey , Yuankai Wu , Darius Burschka , Gordon Cheng

Skeleton-based action recognition has attracted considerable attention in computer vision since skeleton data is more robust to the dynamic circumstance and complicated background than other modalities. Recently, many researchers have used…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Hao Yang , Dan Yan , Li Zhang , Dong Li , YunDa Sun , ShaoDi You , Stephen J. Maybank

Dynamic Graph Neural Network (DGNN) has shown a strong capability of learning dynamic graphs by exploiting both spatial and temporal features. Although DGNN has recently received considerable attention by AI community and various DGNN…

分布式、并行与集群计算 · 计算机科学 2023-09-08 Fahao Chen , Peng Li , Celimuge Wu

Change detection (CD) in remote sensing images has been an ever-expanding area of research. To date, although many methods have been proposed using various techniques, accurately identifying changes is still a great challenge, especially in…

计算机视觉与模式识别 · 计算机科学 2021-02-17 Junzheng Wu , Biao Li , Yao Qin , Weiping Ni , Han Zhang , Yuli Sun

Recent studies have shifted their focus towards formulating traffic forecasting as a spatio-temporal graph modeling problem. Typically, they constructed a static spatial graph at each time step and then connected each node with itself…

机器学习 · 计算机科学 2023-06-14 Chuanpan Zheng , Xiaoliang Fan , Shirui Pan , Haibing Jin , Zhaopeng Peng , Zonghan Wu , Cheng Wang , Philip S. Yu

Skeleton-based human action recognition has attracted much attention with the prevalence of accessible depth sensors. Recently, graph convolutional networks (GCNs) have been widely used for this task due to their powerful capability to…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Zhen Huang , Xu Shen , Xinmei Tian , Houqiang Li , Jianqiang Huang , Xian-Sheng Hua

Exploiting long-range contextual information is key for pixel-wise prediction tasks such as semantic segmentation. In contrast to previous work that uses multi-scale feature fusion or dilated convolutions, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2020-08-27 Li Zhang , Xiangtai Li , Anurag Arnab , Kuiyuan Yang , Yunhai Tong , Philip H. S. Torr

Recent research on deep graph learning has shifted from static to dynamic graphs, motivated by the evolving behaviors observed in complex real-world systems. However, the temporal extension in dynamic graphs poses significant data…

机器学习 · 计算机科学 2025-06-17 Dong Chen , Shuai Zheng , Yeyu Yan , Muhao Xu , Zhenfeng Zhu , Yao Zhao , Kunlun He

Human motion prediction is challenging due to the complex spatiotemporal feature modeling. Among all methods, graph convolution networks (GCNs) are extensively utilized because of their superiority in explicit connection modeling. Within a…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Jiajun Fu , Fuxing Yang , Yonghao Dang , Xiaoli Liu , Jianqin Yin

The extraction of spatial-temporal features is a crucial research in transportation studies, and current studies typically use a unified temporal modeling mechanism and fixed spatial graph for this purpose. However, the fixed spatial graph…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Dongran Zhang , Jun Li

Graph Convolutional Networks (GCN) which typically follows a neural message passing framework to model dependencies among skeletal joints has achieved high success in skeleton-based human motion prediction task. Nevertheless, how to…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Xinshun Wang , Wanying Zhang , Can Wang , Yuan Gao , Mengyuan Liu

Graph neural networks (GNNs), especially dynamic GNNs, have become a research hotspot in spatio-temporal forecasting problems. While many dynamic graph construction methods have been developed, relatively few of them explore the causal…

机器学习 · 计算机科学 2023-05-18 Guojun Liang , Prayag Tiwari , Sławomir Nowaczyk , Stefan Byttner , Fernando Alonso-Fernandez

Devising and analyzing learning models for spatiotemporal network data is of importance for tasks including forecasting, anomaly detection, and multi-agent coordination, among others. Graph Convolutional Neural Networks (GCNNs) are an…

机器学习 · 计算机科学 2022-07-01 Mohammad Sabbaqi , Elvin Isufi