Using Massive Processing and Mining for Modelling and Decision Making in Online Learning Systems - Xhafa, Fatos; Caballe, Santi; Bessis, Nik; Juan, Angel A.; Barolli, Leonard; Miho, Rozeta (2011 International Conference on Emerging Intelligent Data and Web Technologies, Emerging Intelligent Data and Web Technologies (EIDWT), 2011 International Conference on, 2011)