Analysis of Teacher Training in Mathematics in Paraguay's Elementary Education System Using Machine Learning Techniques. - Viviana Elizabeth Jiménez Chaves; Miguel García-Torres; José Luis Vázquez Noguera; César D. Cabrera Oviedo; Andrea Paola Riego Esteche; Federico Divina; Manuel Marrufo-Vázquez (CISIS-ICEUTE, 2019)