The study of cooperation model based on social network

In recent years, as the improvement of virtual communities and social networks, virtual collaborative environments play an increasingly important role in future business and personal activities. The existing network collaborative model cannot express that very well, some ignore the relationship model, and others ignore the collaborative model. By using the social network theory to abstract collaborative network topology, this paper proposes a method for constructing social network model, which considers both the contact between the collaborators and the cooperation between collaborators. Based on the definition of three behaviors, this paper gives the method of measuring the contact intensity; and based on the definition of cooperative behavior, this paper gives the method of measuring the cooperation intensity. Finally, by using the open source community data from www.codeplex.com, the paper tests and verifies the feasibility and effectiveness of the method.