Description of network property measures and node’s centrality measures in SNA [53, 69–74].

In the equations, v represents each vertex (node), e represents each edge. For Network diameter, a(s, t) denotes the number of edges in the shortest path from a node s to a node t. For degree centrality, i is the transmitter node of e, j is the receiving node of e. For closeness centrality, d(v, t) is the geodesic distance between any node v and t (i.e. the sum of the edges on the shortest path). For betweenness centrality, gst represents the number of geodesics (or shortest paths) connecting s to any other node t in the network, and gst(v) denotes the number of shortest paths from s to t that some node v lies on. For clustering coefficient, nv is the number of alters (neighbours) of v, and mv is the number of alter-to-alter edges in the neighbourhood of v.