مرکز منطقه ای اطلاع رسانی علوم و فناوری Journal of Information Systems and Telecommunication (JIST) 2322-1437 2 8 2014 12 20 Trust evaluation in unsupervised network: A fuzzy logic approach Trust evaluation in unsupervised network: A fuzzy logic approach 1 10 10.7508/jist.2014.04.005 en Golnar Assadat Afzali K. N. Toosi Monireh Hosseini خواجه نصیرالدین طوسی 2014 10 28 Because of the possibility of anonymity and impersonation in social networks, trust plays an important role in these networks. Pear to pear networks, by eliminating the supervisor roles, besides its benefit in decreasing management costs, have problems in trust and security of users. In this research, by using social networks as supervised networks, trust level of users is evaluated and by identifying these users in unsupervised networks, appropriate trust level is assigned to them. trust;unsupervised networks;trust factors;fuzzy logic;;;; http://jist.ir/en/Article/Download/14866