Paper Info
Title
High-Order Graph Convolutional Recurrent Neural Network: A Deep Learning Framework for Network-Scale Traffic Learning and Forecasting.
Abstract
Traffic forecasting is a challenging task, due to the complicated spatial dependencies on roadway networks and the time-varying traffic patterns. To address this challenge, we learn the traffic network as a graph and propose a novel deep learning framework, High-Order Graph Convolutional Long Short-Term Memory Neural Network (HGC-LSTM), to learn the interactions between links in the traffic network and forecast the network-wide traffic state. We define the high-order traffic graph convolution based on the physical network topology. The proposed framework employs L1-norms on the graph convolution weights and L2-norms on the graph convolution features to identify the most influential links in the traffic network. We propose a novel Real-Time Branching Learning (RTBL) algorithm for the HGC-LSTM framework to accelerate the training process for spatio-temporal data. Experiments show that our HGC-LSTM network is able to capture the complex spatio-temporal dependencies efficiently present in the traffic network and consistently outperforms state-of-the-art baseline methods on two heterogeneous real-world traffic datasets. The visualization of graph convolution weights shows that the proposed framework can accurately recognize the most influential roadway segments in real-world traffic networks.
Year
DOI
Venue
2018
10.1109/tits.2019.2950416
arXiv: Learning
Field
DocType
Volume
Graph,Visualization,Convolution,Recurrent neural network,Artificial intelligence,Traffic network,Deep learning,Artificial neural network,Machine learning,Mathematics,Branching (version control)
Journal
abs/1802.07007
Citations 
PageRank 
References 
9
0.49
13
Authors
4
Name
Order
Citations
PageRank
Zhiyong Cui1161.39
Kristian Henrickson290.49
Ke Ruimin3896.69
Yinhai Wang490.49