Ambient Intelligence - Software and Applications -, 9th International Symposium on Ambient Intelligence - Novais, Paulo; Jung, Jason J.; Villarrubia González, Gabriel; Fernández-Caballero, Antonio; Navarro, Elena; González, Pascual; Carneiro, Davide; Pinto, António; Campbell, Andrew T.; Durães, Dalila (Springer International Publishing : Imprint: Springer, 2019)