A Deep Learning Approach for Long-Term Traffic Flow Prediction With Multifactor Fusion Using Spatiotemporal Graph Convolutional Network
As a vital research subject in the field of intelligent transportation systems (ITSs), traffic flow prediction using deep learning methods has attracted much attention in recent years. However, numerous existing studies mainly focus on short-term traffic flow predictions and fail to consider the inf...
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| Vydáno v: | IEEE transactions on intelligent transportation systems Ročník 24; číslo 8; s. 1 - 14 |
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| Hlavní autoři: | , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
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New York
IEEE
01.08.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
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| ISSN: | 1524-9050, 1558-0016 |
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| Abstract | As a vital research subject in the field of intelligent transportation systems (ITSs), traffic flow prediction using deep learning methods has attracted much attention in recent years. However, numerous existing studies mainly focus on short-term traffic flow predictions and fail to consider the influence of external factors. Effective long-term traffic flow prediction has become a challenging issue. As a solution to these challenges, this paper proposes a deep learning approach based on a spatiotemporal graph convolutional network for long-term traffic flow prediction with multiple factors. In the proposed method, our innovative idea is to introduce an attribute feature unit (AF-unit) to fuse external factors into a spatiotemporal graph convolutional network. The proposed method consists of (1) constructing a weighted adjacency matrix using Gaussian similarity functions; (2) assembling a feature matrix to store time-series traffic flow; (3) building an external attribute matrix composed of external factors, including temperature, visibility, and weather conditions; and (4) building a spatiotemporal graph convolutional network based on a deep learning architecture (i.e., T-GCN). The experimental results indicate that (1) the performance of our method considering spatiotemporal dependence has better prediction capability than baseline models; (2) the fusion of meteorological factors can reduce the inaccuracy of traffic prediction; and (3) our method has high accuracy and stability in long-term traffic flow prediction. |
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| AbstractList | As a vital research subject in the field of intelligent transportation systems (ITSs), traffic flow prediction using deep learning methods has attracted much attention in recent years. However, numerous existing studies mainly focus on short-term traffic flow predictions and fail to consider the influence of external factors. Effective long-term traffic flow prediction has become a challenging issue. As a solution to these challenges, this paper proposes a deep learning approach based on a spatiotemporal graph convolutional network for long-term traffic flow prediction with multiple factors. In the proposed method, our innovative idea is to introduce an attribute feature unit (AF-unit) to fuse external factors into a spatiotemporal graph convolutional network. The proposed method consists of (1) constructing a weighted adjacency matrix using Gaussian similarity functions; (2) assembling a feature matrix to store time-series traffic flow; (3) building an external attribute matrix composed of external factors, including temperature, visibility, and weather conditions; and (4) building a spatiotemporal graph convolutional network based on a deep learning architecture (i.e., T-GCN). The experimental results indicate that (1) the performance of our method considering spatiotemporal dependence has better prediction capability than baseline models; (2) the fusion of meteorological factors can reduce the inaccuracy of traffic prediction; and (3) our method has high accuracy and stability in long-term traffic flow prediction. |
| Author | Piccialli, Francesco Tu, Jingzhi Xi, Ning Mei, Gang Qi, Xiaoyu |
| Author_xml | – sequence: 1 givenname: Xiaoyu surname: Qi fullname: Qi, Xiaoyu organization: School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, China – sequence: 2 givenname: Gang orcidid: 0000-0003-0026-5423 surname: Mei fullname: Mei, Gang organization: School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, China – sequence: 3 givenname: Jingzhi orcidid: 0000-0001-8292-9582 surname: Tu fullname: Tu, Jingzhi organization: School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, China – sequence: 4 givenname: Ning surname: Xi fullname: Xi, Ning organization: School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, China – sequence: 5 givenname: Francesco orcidid: 0000-0002-5179-2496 surname: Piccialli fullname: Piccialli, Francesco organization: Department of Mathematics and Applications, University of Naples Federico II, Naples, Italy |
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| SubjectTerms | Artificial neural networks Atmospheric models Convolution Data models Deep learning external factor Flow stability Forecasting Intelligent transportation systems Intelligent transportation systems (ITS) Logic gates long-term traffic flow prediction Predictive models spatiotemporal graph convolutional network Spatiotemporal phenomena Traffic flow Transportation networks Weather |
| Title | A Deep Learning Approach for Long-Term Traffic Flow Prediction With Multifactor Fusion Using Spatiotemporal Graph Convolutional Network |
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