فهرس المقالات Ali Zakerolhossieni المقاله 1 - COGNISON: A Novel Dynamic Community Detection Algorithm in Social Network 10.7508/jist.2016.02.002 Hamideh Sadat Cheraghchi Ali Zakerolhossieni Journal of Information Systems and Telecommunication (JIST) , العدد 2 , السنة 4 , بهار 2016