4th International Conference on Computational Mathematics and Engineering Sciences (CMES-2019) - Dutta, Hemen; Hammouch, Zakia 1976-; Bulut, Hasan; Baskonus, Haci Mehmet (Advances in intelligent systems and computing / series editor Janusz Kacprzyk ; advisory editors Nikhil R. Pal, Rafael Bello Perez, Emilio S. Corchado, Hani Hagras [y otros ocho] ;, 2020)