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Timely accurate traffic forecast is crucial for urban traffic control and guidance. Due to the high nonlinearity and complexity of traffic flow, traditional methods cannot satisfy the requirements of mid-and-long term prediction tasks and…

机器学习 · 计算机科学 2018-07-13 Bing Yu , Haoteng Yin , Zhanxing Zhu

Urban spatio-temporal flow prediction, encompassing traffic flows and crowd flows, is crucial for optimizing city infrastructure and managing traffic and emergency responses. Traditional approaches have relied on separate models tailored to…

机器学习 · 计算机科学 2025-04-02 Yuan Yuan , Jingtao Ding , Chonghua Han , Zhi Sheng , Depeng Jin , Yong Li

Biological spiking neurons with intrinsic dynamics underlie the powerful representation and learning capabilities of the brain for processing multimodal information in complex environments. Despite recent tremendous progress in spiking…

神经与进化计算 · 计算机科学 2021-07-15 Mingkun Xu , Yujie Wu , Lei Deng , Faqiang Liu , Guoqi Li , Jing Pei

This paper investigates traffic forecasting, which attempts to forecast the future state of traffic based on historical situations. This problem has received ever-increasing attention in various scenarios and facilitated the development of…

机器学习 · 计算机科学 2024-03-05 Wei Ju , Yusheng Zhao , Yifang Qin , Siyu Yi , Jingyang Yuan , Zhiping Xiao , Xiao Luo , Xiting Yan , Ming Zhang

Spatio-temporal graph neural networks (STGNN) have emerged as the dominant model for spatio-temporal graph (STG) forecasting. Despite their success, they fail to model intrinsic uncertainties within STG data, which cripples their…

机器学习 · 计算机科学 2024-03-12 Haomin Wen , Youfang Lin , Yutong Xia , Huaiyu Wan , Qingsong Wen , Roger Zimmermann , Yuxuan Liang

This paper aims to unify spatial dependency and temporal dependency in a non-Euclidean space while capturing the inner spatial-temporal dependencies for traffic data. For spatial-temporal attribute entities with topological structure, the…

机器学习 · 计算机科学 2022-06-28 Zonghan Wu , Da Zheng , Shirui Pan , Quan Gan , Guodong Long , George Karypis

Short-term demand forecasting models commonly combine convolutional and recurrent layers to extract complex spatiotemporal patterns in data. Long-term histories are also used to consider periodicity and seasonality patterns as time series…

机器学习 · 计算机科学 2019-10-15 Doyup Lee , Suehun Jung , Yeongjae Cheon , Dongil Kim , Seungil You

Travel time estimation is one of the core tasks for the development of intelligent transportation systems. Most previous works model the road segments or intersections separately by learning their spatio-temporal characteristics to estimate…

人工智能 · 计算机科学 2023-11-16 Guangyin Jin , Huan Yan , Fuxian Li , Jincai Huang , Yong Li

Spiking neural networks (SNNs), inspired by the spiking behavior of biological neurons, offer a distinctive approach for capturing the complexities of temporal data. However, their potential for spatial modeling in multivariate time-series…

机器学习 · 计算机科学 2025-08-19 Bang Hu , Changze Lv , Mingjie Li , Yunpeng Liu , Xiaoqing Zheng , Fengzhe Zhang , Wei cao , Fan Zhang

This study aims to overcome the limitations of conventional deep-learning approaches based on convolutional neural networks in complex geometries and unstructured meshes by exploring the potential of Graph U-Nets for unsteady flow-field…

机器学习 · 计算机科学 2024-10-18 Sunwoong Yang , Ricardo Vinuesa , Namwoo Kang

Recent years have seen a surge in research on dynamic graph representation learning, which aims to model temporal graphs that are dynamic and evolving constantly over time. However, current work typically models graph dynamics with…

神经与进化计算 · 计算机科学 2023-05-19 Jintang Li , Zhouxin Yu , Zulun Zhu , Liang Chen , Qi Yu , Zibin Zheng , Sheng Tian , Ruofan Wu , Changhua Meng

Accurate traffic forecasting, the foundation of intelligent transportation systems (ITS), has never been more significant than nowadays due to the prosperity of smart cities and urban computing. Recently, Graph Neural Network truly…

机器学习 · 计算机科学 2022-05-18 Jiabin Tang , Tang Qian , Shijing Liu , Shengdong Du , Jie Hu , Tianrui Li

Temporal networks are suitable for modeling complex evolving systems. It has a wide range of applications, such as social network analysis, recommender systems, and epidemiology. Recently, modeling such dynamic systems has drawn great…

社会与信息网络 · 计算机科学 2022-11-15 Jiayun Wu , Tao Jia , Yansong Wang , Li Tao

We study the task of spatio-temporal extrapolation that generates data at target locations from surrounding contexts in a graph. This task is crucial as sensors that collect data are sparsely deployed, resulting in a lack of fine-grained…

机器学习 · 计算机科学 2023-05-31 Junfeng Hu , Yuxuan Liang , Zhencheng Fan , Hongyang Chen , Yu Zheng , Roger Zimmermann

Predicting road traffic speed is a challenging task due to different types of roads, abrupt speed change and spatial dependencies between roads; it requires the modeling of dynamically changing spatial dependencies among roads and temporal…

机器学习 · 计算机科学 2020-10-21 Cheonbok Park , Chunggi Lee , Hyojin Bahng , Yunwon Tae , Kihwan Kim , Seungmin Jin , Sungahn Ko , Jaegul Choo

Analyzing the temporal behavior of nodes in time-varying graphs is useful for many applications such as targeted advertising, community evolution and outlier detection. In this paper, we present a novel approach, STWalk, for learning…

社会与信息网络 · 计算机科学 2017-11-15 Supriya Pandhre , Himangi Mittal , Manish Gupta , Vineeth N Balasubramanian

We propose Lite-STGNN, a lightweight spatial-temporal graph neural network for long-term multivariate forecasting that integrates decomposition-based temporal modeling with learnable sparse graph structure. The temporal module applies…

机器学习 · 计算机科学 2025-12-22 Henok Tenaw Moges , Deshendran Moodley

Many real world graphs are inherently dynamic, constantly evolving with node and edge additions. These graphs can be represented by temporal graphs, either through a stream of edge events or a sequence of graph snapshots. Until now, the…

机器学习 · 计算机科学 2024-12-03 Shenyang Huang , Farimah Poursafaei , Reihaneh Rabbany , Guillaume Rabusseau , Emanuele Rossi

In recent years, traffic flow prediction has played a crucial role in the management of intelligent transportation systems. However, traditional prediction methods are often limited by static spatial modeling, making it difficult to…

机器学习 · 计算机科学 2025-01-09 Mei Wu , Wenchao Weng , Jun Li , Yiqian Lin , Jing Chen , Dewen Seng

The criticality of prompt and precise traffic forecasting in optimizing traffic flow management in Intelligent Transportation Systems (ITS) has drawn substantial scholarly focus. Spatio-Temporal Graph Neural Networks (STGNNs) have been…

机器学习 · 计算机科学 2023-08-16 Zepu Wang , Yuqi Nie , Peng Sun , Nam H. Nguyen , John Mulvey , H. Vincent Poor