Dynamic Spatiotemporal Graph Neural Network with Tensor Network

• URL: http://arxiv.org/abs/2003.08729v1
• Date: Thu, 12 Mar 2020 20:47:22 GMT
• Title: Dynamic Spatiotemporal Graph Neural Network with Tensor Network
• Authors: Chengcheng Jia, Bo Wu, Xiao-Ping Zhang
• Abstract summary: Dynamic spatial graph construction is a challenge in graph neural network (GNN) for time series data problems. We generate a spatial tensor graph (STG) to collect all the dynamic spatial relations, as well as a temporal tensor graph (TTG) to find the latent pattern along time at each node. We experimentally compare the accuracy and time costing with the state-of-the-art GNN based methods on the public traffic datasets.
• Score: 12.278768477060137
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Dynamic spatial graph construction is a challenge in graph neural network (GNN) for time series data problems. Although some adaptive graphs are conceivable, only a 2D graph is embedded in the network to reflect the current spatial relation, regardless of all the previous situations. In this work, we generate a spatial tensor graph (STG) to collect all the dynamic spatial relations, as well as a temporal tensor graph (TTG) to find the latent pattern along time at each node. These two tensor graphs share the same nodes and edges, which leading us to explore their entangled correlations by Projected Entangled Pair States (PEPS) to optimize the two graphs. We experimentally compare the accuracy and time costing with the state-of-the-art GNN based methods on the public traffic datasets.

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