AGCN-T: A Traffic Flow Prediction Model for Spatial-Temporal Network Dynamics

Table 1

Notations in AGCN-T.

Notation	Definition and Description
	Traffic network with nodes , edges and adjacency matrix.
	Number of nodes in.
	The strength of the relationship between vertex and.
	Feature matrix of.
	Total number of historical time steps.
	The speed detected by the loop detector at time.
	Predicted traffic speed at time.
	Observed traffic speed at time.
	The optimal set of parameters.
	Sequences of traffic detected by detectors and.
	MAE values of predicting.
	The median of.
	The adjacency matrix by adding the identity matrix.
	Global spatial dependence matrix.
	The dimension of the embedding vector.
	The normalized adjacency matrix of .
	Degree matrix of.
	The attention matrix.
	Local spatial dependence matrix.
	Spatial dependence matrix.
	Temporal dependence matrix.
	Spatial-temporal dependence matrix.