**3. Method**

The nature of the network that does not depend on the specific location of the node and the specific form of the edge can be described by the topological property. The corresponding structure is called the topology of the network. Topological parameters, also known as the static geometry of the network, are the basis for studying complex networks [13]. This study focuses on the four most important topological parameters of the network according to complex theory: degree distribution, path length, clustering coefficient, and betweenness. Two software, UCINET [40] and Netdraw [41], are used to obtain the regarding results and visual picture. The former is one of the most popular social network analysis software tools. It includes centrality analysis, cluster analysis, and statistical analysis, etc. Netdraw is generally used for visualization. It is integrated within UCINET software.
