International Joint Conference SOCO’18-CISIS’18-ICEUTE’18 San Sebastián, Spain, June 6-8, 2018 Proceedings - Graña Romay, Manuel M. 1958-; López-Guede, José Manuel; Etxaniz, Oier; Herrero, Álvaro; Sáez, José Antonio; Quintián, Héctor; Corchado, Emilio (Advances in Intelligent Systems and Computing, 2019)