. 2014 Jul 3;4:5547. doi: 10.1038/srep05547

Table 1. Properties of the real-world networks studied in this work. Here N is the number of nodes, N_E is the number of edges, 〈k_in〉 is the average in-degree of the network, and N_d is the number of nodes involved in diffusion. For undirected networks, 〈k_in〉 represents average degree.

Networks	Type	N	N_E	〈k_in〉	N_d
LiveJournal	directed	9573126	188240039	19.7	246423
APS	undirected	162142	1306506	16.1	29814
Facebook	directed	63731	1545685	24.3	35813
Twitter	directed	2870418	4772477	1.7	901949

Table 1. Properties of the real-world networks studied in this work. Here N is the number of nodes, NE is the number of edges, 〈kin〉 is the average in-degree of the network, and Nd is the number of nodes involved in diffusion. For undirected networks, 〈kin〉 represents average degree.