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Accurate and robust weather forecasting remains a fundamental challenge due to the inherent spatio-temporal complexity of atmospheric systems. In this paper, we propose a novel self-supervised learning framework that leverages…

机器学习 · 计算机科学 2025-11-04 Yao Liu

Neural Processes combine the strengths of neural networks and Gaussian processes to achieve both flexible learning and fast prediction in stochastic processes. However, a large class of problems comprises underlying temporal dependency…

机器学习 · 计算机科学 2019-10-29 Gautam Singh , Jaesik Yoon , Youngsung Son , Sungjin Ahn

Real-world time series often exhibit strong non-stationarity, complex nonlinear dynamics, and behavior expressed across multiple temporal scales, from rapid local fluctuations to slow-evolving long-range trends. However, many contemporary…

机器学习 · 计算机科学 2026-05-19 Sumit S Shevtekar , Chandresh K Maurya

Multivariate time series anomaly detection technology plays an important role in many fields including aerospace, water treatment, cloud service providers, etc. Excellent anomaly detection models can greatly improve work efficiency and…

机器学习 · 计算机科学 2024-10-30 Hongyi Xu

Accurate spatiotemporal traffic forecasting is vital for intelligent resource management in 5G and beyond. However, conventional AI approaches often fail to capture the intricate spatial and temporal patterns that exist, due to e.g., the…

机器学习 · 计算机科学 2025-07-29 Khalid Ali , Zineddine Bettouche , Andreas Kassler , Andreas Fischer

Temporal networks are essential for modeling and understanding systems whose behavior varies in time, from social interactions to biological systems. Often, however, real-world data are prohibitively expensive to collect in a large scale or…

社会与信息网络 · 计算机科学 2023-08-23 Antonio Longa , Giulia Cencetti , Sune Lehmann , Andrea Passerini , Bruno Lepri

Accurate spatio-temporal prediction is crucial for the sustainable development of smart cities. However, current approaches often struggle to capture important spatio-temporal relationships, particularly overlooking global relations among…

机器学习 · 计算机科学 2024-11-12 Ashutosh Sao , Simon Gottschalk

Graph neural networks (GNNs) have gained considerable attention in recent years for traffic flow prediction due to their ability to learn spatio-temporal pattern representations through a graph-based message-passing framework. Although GNNs…

机器学习 · 计算机科学 2025-03-12 Qianru Zhang , Xinyi Gao , Haixin Wang , Siu-Ming Yiu , Hongzhi Yin

This paper introduces a generalization of Convolutional Neural Networks (CNNs) from low-dimensional grid data, such as images, to graph-structured data. We propose a novel spatial convolution utilizing a random walk to uncover the relations…

机器学习 · 统计学 2017-04-27 Yotam Hechtlinger , Purvasha Chakravarti , Jining Qin

Effective and Efficient spatio-temporal modeling is essential for action recognition. Existing methods suffer from the trade-off between model performance and model complexity. In this paper, we present a novel Spatio-Temporal Hybrid…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Xu Li , Jingwen Wang , Lin Ma , Kaihao Zhang , Fengzong Lian , Zhanhui Kang , Jinjun Wang

We present simplicial neural networks (SNNs), a generalization of graph neural networks to data that live on a class of topological spaces called simplicial complexes. These are natural multi-dimensional extensions of graphs that encode not…

机器学习 · 计算机科学 2020-12-29 Stefania Ebli , Michaël Defferrard , Gard Spreemann

Recurrent neural network (RNN) and self-attention mechanism (SAM) are the de facto methods to extract spatial-temporal information for temporal graph learning. Interestingly, we found that although both RNN and SAM could lead to a good…

机器学习 · 计算机科学 2023-02-24 Weilin Cong , Si Zhang , Jian Kang , Baichuan Yuan , Hao Wu , Xin Zhou , Hanghang Tong , Mehrdad Mahdavi

This paper addresses the problem of traffic prediction in distributed backend systems and proposes a graph neural network based modeling approach to overcome the limitations of traditional models in capturing complex dependencies and…

分布式、并行与集群计算 · 计算机科学 2025-10-20 Zhimin Qiu , Feng Liu , Yuxiao Wang , Chenrui Hu , Ziyu Cheng , Di Wu

Exploring the missing values is an essential but challenging issue due to the complex latent spatio-temporal correlation and dynamic nature of time series. Owing to the outstanding performance in dealing with structure learning potentials,…

机器学习 · 计算机科学 2024-07-19 Guojun Liang , Prayag Tiwari , Slawomir Nowaczyk , Stefan Byttner

Spatiotemporal graph neural networks (STGNNs) have shown promising results in many domains, from forecasting to epidemiology. However, understanding the dynamics learned by these models and explaining their behaviour is significantly more…

机器学习 · 计算机科学 2026-04-08 Michele Guerra , Simone Scardapane , Filippo Maria Bianchi

Graph convolutional networks (GCNs) have emerged as dominant methods for skeleton-based action recognition. However, they still suffer from two problems, namely, neighborhood constraints and entangled spatiotemporal feature representations.…

计算机视觉与模式识别 · 计算机科学 2022-01-11 Ruwen Bai , Min Li , Bo Meng , Fengfa Li , Miao Jiang , Junxing Ren , Degang Sun

Human motion prediction (HMP) involves forecasting future human motion based on historical data. Graph Convolutional Networks (GCNs) have garnered widespread attention in this field for their proficiency in capturing relationships among…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Jiexin Wang , Yiju Guo , Bing Su

Automatic Modulation Recognition (AMR) is an essential part of Intelligent Transportation System (ITS) dynamic spectrum allocation. However, current deep learning-based AMR (DL-AMR) methods are challenged to extract discriminative and…

信号处理 · 电气工程与系统科学 2025-08-19 Mingyuan Shao , Zhengqiu Fu , Dingzhao Li , Fuqing Zhang , Yilin Cai , Shaohua Hong , Lin Cao , Yuan Peng , Jie Qi

In recent years, there has been an increasing interest in the use of graph neural networks (GNNs) for analyzing dynamic graphs, which are graphs that evolve over time. However, there is still a lack of understanding of how different…

机器学习 · 计算机科学 2023-05-03 Rishu Verma , Ashmita Bhattacharya , Sai Naveen Katla

Detecting anomalies in dynamic graphs is a vital task, with numerous practical applications in areas such as security, finance, and social media. Previous network embedding based methods have been mostly focusing on learning good node…

机器学习 · 计算机科学 2020-05-26 Lei Cai , Zhengzhang Chen , Chen Luo , Jiaping Gui , Jingchao Ni , Ding Li , Haifeng Chen