Bernabé Dorronsoro · Patricia Ruiz · Juan Carlos de la Torre · Daniel Urda · El-Ghazali Talbi (Eds.) Third International Conference, OLA 2020 Cádiz, Spain, February 17–19, 2020 Proceedings Optimization and Learning Communications in Computer and Information Science 1173 LA 2020 February 17-19 th 2o2o, Cádiz, SPAIN