The Hybrid Forecasting Method SVR-ESAR for Covid-19. - Juan Frausto Solís; Jose Enrique Olvera Vazquez; Juan Javier González Barbosa; Guadalupe Castilla Valdez; Juan Paulo Sánchez-Hernández; Joaquín Pérez Ortega; Ocotlán Díaz-Parra (Int. J. Comb. Optim. Probl. Informatics, 2021)