Department of Computer Engineering and Information Technology, Amirkabir University of Technology, Tehran, Iran;Department of Computer Engineering and Information Technology, Amirkabir University of Technology, Tehran, Iran
Mina Abbaspour Orangi;Alireza Hashemi Golpayegani
One of the key issues on social networks is how users trust each other. Users of social networks don't necessarily know other users and need to trust them in communicating and sharing information. There are various ways to compute the trust value of unknown users. The proposed methods have assumed that trusting behavior of users is like each other while users' view may vary and change over time due to personal or environmental changes. In this paper, we have proposed a three-condition model for describing the trusting behavior of each user in social networks. Our model consists of three modes to compute the trust value of users. In each trusting mode, different features of user behavior and activities are the basis for calculating trust. Our model also shows how the trusting behavior mode of users diffuses on the network and makes changes in the behavior mode of their neighbors. The results of the model show more consistency with real-world behavior changes in trust of individuals and the changes in the whole community behavior in this manner.