In order to emphasize the relationships among multiple time-series, we formulate the problem of
multivariate time-series forecasting based on a data structure called multivariate temporal graph,
which can be denoted as G = (X,W). X = {xit} ∈ RN×T stands for the multivariate time-series
input, where N is the number of time-series (nodes), and T is the number of timestamps. We denote
N N×N the observed values at timestamp t as Xt ∈ R . W ∈ R
is the adjacency matrix, where wij > 0 indicates that there is an edge connecting nodes i and j, and wij indicates the strength of this edge.
由于存在时空问题,我认为普通的LSTM不能很好地用于这些目的。您可以潜在地使用图形神经网络(GNN),因为它们擅长学习时空依赖关系。本质上,你可以像STEMGNN的作者一样,将其视为一个多元时间序列预测问题
有一些实现是公开的。我建议您查看PyTorch Geometric Library.
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