Discretization method to optimize logistic regression on classification of student’s cognitive domainYuni Yamasari, Puput W. Rusimamto, Naim Rochmawati, Dwi F. Suyatno, Setya C. Wibawa, Supeno M. S. Nugroho and Mauridhi H. PurnomoMATEC Web Conf., 197 (2018) 03006DOI: https://doi.org/10.1051/matecconf/201819703006