- Pedro Henriques Abreu, Pedro Pereira Rodrigues, Alberto Fernández 0001, João Gama 0001, editors, Advances in Intelligent Data Analysis XIX - 19th International Symposium on Intelligent Data Analysis, IDA 2021, Porto, Portugal, April 26-28, 2021, Proceedings. Volume 12695 of Lecture Notes in Computer Science, Springer, 2021.