This paper introduces Graph Convolutional Recurrent Network (GCRN), a deep
learning model able to predict structured sequences of data. Precisely, GCRN is
a generalization of classical recurrent neural networks (RNN) to data
structured by an arbitrary graph. Such structured sequences can represent
series of frames in videos, spatio-temporal measurements on a network of
sensors, or random walks on a vocabulary graph for natural language modeling.
The proposed model combines convolutional neural networks (CNN) on graphs to
identify spatial structures and RNN to find dynamic patterns. We study two
possible architectures of GCRN, and apply the models to two practical problems:
predicting moving MNIST data, and modeling natural language with the Penn
Treebank dataset. Experiments show that exploiting simultaneously graph spatial
and dynamic information about data can improve both precision and learning
speed.

本文介绍了图卷积循环网络（GCRN），这是一种深度学习模型，能够预测结构化数据序列。GCRN 是经典递归神经网络（RNN）在任意图结构数据上的泛化。该模型将图上的卷积神经网络 (CNN) 与 RNN 相结合，以找出动态模式和空间结构，并将其应用于 MNIST 数据预测和 Penn Treebank 数据集的自然语言建模。实验表明，同时利用数据的图空间和动态信息可以提高精度和学习速度。