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Title	Short-Term Urban Traffic Forecasting In Smart Cities: A Dynamic Diffusion Spatial-Temporal Graph Convolutional Network
ID_Doc	48716
Authors	Yin X.; Yu J.; Duan X.; Chen L.; Liang X.
Year	2025
Published	Complex and Intelligent Systems, 11, 2
DOI	http://dx.doi.org/10.1007/s40747-024-01769-6
Abstract	Short-term traffic forecasting is an important part of intelligent transportation systems. Accurately predicting short-term traffic trends can avoid traffic congestion and plan travel routes, which is of great significance to urban management and traffic scheduling. The difficulty of short-term urban traffic forecasting is that the traffic flow is random and will be dynamically changed by the traffic conditions of nearby nodes. In order to solve this problem, this paper proposes a model based on Dynamic Diffusion Spatial-Temporal Graph Convolutional Network. It first combines the dynamic generation matrix and the static distance matrix to grasp real-time traffic conditions, and then introduces the diffusion random walk strategy to capture the correlation of spatial nodes. Finally, the convolutional LSTM module is used to mine the spatiotemporal dependence of traffic data to improve the accuracy of traffic prediction. Compared to several baseline models, the experimental results show that the model is 7% better than other models on several metrics and demonstrates the necessity of the module through ablation experiments. © The Author(s) 2024.
Author Keywords	Dynamic generation; Graph convolutional network; Spatial-temporal; Traffic forecasting

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