Figure 1. Core-periphery profile and centralization of four types of artificial networks.

(a). The core-periphery profile of the star network (the n – 1 peripheral nodes are connected to the center node only), of the complete (all-to-all) network, and of a few realizations of Erdős-Rényi (ER) and Barabási-Albert (BA) networks (10 realizations each, n = 100, average degree 〈k〉 = 4). (b). The histograms of the distribution of the cp-centralization C over 10³ realizations of ER and BA networks (n = 100, 〈k〉 = 4). The values of C for the complete and star networks are higlighted for comparison.