“…Recommender systems have recently become popular among many well-known e-businesses such as Amazon.com, CDNow.com, Barnes&Noble.com, and MovieFinder.com. There are different versions of recommender systems based on how it is generated such as content-based filtering (CBF) (Cheung et al, 2003;Weng & Liu, 2004;Cho & Kim, 2004;Hung, 2005;Adomavi-cius & Tuzhilin, 2005;Leung et al, 2006;Shih & Liu, 2008), collaborative filtering (CF) (Karypis, 2001;Sarwar et al, 2001;Cheung et al, 2003;Weng & Liu, 2004;Cho & Kim, 2004;Liua et al, 2005;Adomavicius & Tuzhilin, 2005;Boucher-Ryan & Bridge, 2006;Leung et al, 2006;Shih & Liu, 2008) and hybrid approaches (Burke, 2002;Cho & Kim, 2004;Semeraro et al, 2005;Adomavicius & Tuzhilin, 2005;Choi et al, 2006;Kim et al, 2006;Shih & Liu, 2008;Albadvi and Shahbazi, 2009). The rest of this study is organized as follows.…”