U-Control Chart Based Differential Evolution Clustering for Determining the Number of Cluster in k-Means. - Jesús Silva; Omar Bonerge Pineda Lezama; Noel Varela; Jesús García Guiliany; Ernesto Joaquín Steffens Sanabria; Madelin Sánchez Otero; Vladimir Álvarez Rojas (GPC, 2019)