Barbosa, Artur, Antonio Nilo de Araujo Neto, Emanuele Santos, and João Paulo P. Gomes. " Using Learning Analytics and Visualization Techniques to Evaluate the Structure of Higher Education Curricula." Anais do XXVIII Simpósio Brasileiro de Informática na Educação, Recife/PE, 2017. SBC, 2017, pp.1297-1306.