“…In the cases, when some communities are detected, the value of modularity quality is in positive meaning, larger number represents a stronger community. Based on the research in [8], is the value above about 0,3 indicator of good community structure in the network. The modularity quality is calculated based on (5), where Ai,j represents the weight of the edge between couple of nodes (i,j), ki is the sum of the weights of the edges attached to vertex i, ci is community to witch vertex i is assigned, δ(ci,cj) is 1 if ci=cj and 0 otherwise and [10].…”