Machine Learning, Artificial Intelligence, Graph Neural Networks, Deep Learning, Data Science.
Figure 8 shows an example of the adjacency matrix when the input graph is directed and undirected. On the left-hand side when the graph is undirected, the adjacency matrix is symmetric. Vertex 0 and vertex 1 are connected to each other, so A[0,1] = 1 and A[1,0] = 1. On the right-hand side when the