The goal of traffic forecasting is to predict the future vital indicators (such as speed, volume and density) of the local traffic network in reasonable response time. Due to the dynamics and complexity of the traffic network flow, typical simulation experiments and classic statistical methods cannot satisfy the requirements of medium and long-term forecasting. In this work, we propose a novel deep learning framework, Spatio-Temporal Graph Convolutional Neural Network (ST-GCNN), to tackle this spatio-temporal sequence forecasting task. Instead of applying recurrent models to sequence learning, we build our model entirely on convolutional neural networks (CNNs) with gated linear units (GLU) and highway networks. The proposed architecture fully employs the graph structure of the road networks and enables faster training. Experiments show that our ST-GCNN network captures comprehensive spatio-temporal correlations throughout complex traffic network and consistently outperforms state-of-the-art baseline algorithms on several real-world traffic datasets.

本文提出一个基于图卷积神经网络（STGCN）的深度学习框架来预测交通领域的时间序列问题，该模型可以更快地训练少量参数，通过建模多尺度交通网络，有效地捕捉了全面的时空相关性，并在各种真实世界的交通数据集上不断超越现有最先进的基线模型。

时空图卷积网络：用于交通预测的深度学习框架