Title
STOG: A Traffic Prediction Scheme Based on Spatio-Temporal Optimized Graph Neural Networks
Abstract
How to alleviate the traffic congestion and improve the traffic capacity of road networks through smart prediction has become a top priority for the realization of Intelligent Transportation Systems (ITS). It is necessary to capture the complex spatio-temporal correlation through the traffic data of road networks to achieve an accurate traffic prediction. In this paper, we propose a prediction method of spatio-temporal optimal graph neural network (STOG). It can obtain the spatio-temporal features of road networks through diffusion graph convolution (DGC) and recurrent neural network (RNN). We further leverage a new spatial attention mechanism to gain the aggregated features of the sampled nodes through pooling operations. It not only avoids excessive parameters, but also makes the model pays more attention to the sampled nodes, thereby reducing the prediction error. Through comparison with various baseline methods on METR-LA dataset, the results show that the proposed model can achieve higher prediction accuracy.
Year
DOI
Venue
2021
10.1109/VTC2021-FALL52928.2021.9625430
2021 IEEE 94TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2021-FALL)
Keywords
DocType
ISSN
spatio-temporal correlation, traffic prediction, diffusion graph convolution, spatial attention mechanism
Conference
2577-2465
Citations 
PageRank 
References 
0
0.34
5
Authors
6
Name
Order
Citations
PageRank
Shuting Hu101.01
Ze Yu200.34
Danyang Zhou301.35
Yi Zhou400.68
Nan Cheng597081.34
Ning Lu672737.36