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a) A fictitious 5 x 5 transition matrix, b) The corresponding undirected network with nodes S1, S2, S3, S4, S5 and links (i.e. transitions) between these nodes, c) The corresponding weighted undirected network with the number of links between pairs of nodes on the left, and weighted adjacency matrix M on the right d) Degree centrality for each node in the network.
