Beldjoudi, Samia, Hassina Seridi, and Catherine Faron Zucker. 2017. “Personalizing and Improving Resource Recommendation by Analyzing Users Preferences in Social Tagging Activities”. Computing and Informatics 36 (1):223-56. http://147.213.75.17/ojs/index.php/cai/article/view/2017_1_223.