Bello-Orgaz, Gema, Héctor Menéndez, Shintaro Okazaki, and David Camacho. 2014. “Combining Social-Based Data Mining Techniques To Extract Collective Trends From Twitter”. Malaysian Journal of Computer Science 27 (2):95-111. http://jice.um.edu.my/index.php/MJCS/article/view/6797.