13th International Conference, ENASE 2018, Funchal, Madeira, Portugal, March 23–24, 2018, Revised Selected Papers

11th International Joint Conference, BIOSTEC 2018, Funchal, Madeira, Portugal, January 19–21, 2018, Revised Selected Papers

Second International Conference, ICT4DA 2019, Bahir Dar, Ethiopia, May 28-30, 2019, Revised Selected Papers

14th International Conference, KMO 2019, Zamora, Spain, July 15–18, 2019, Proceedings

First Iberoamerican Conference, KGSWC 2019, Villa Clara, Cuba, June 23-30, 2019, Proceedings

21st International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part I

21st International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part II

21st International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part III

4th International Conference, DTGS 2019, St. Petersburg, Russia, June 19–21, 2019, Revised Selected Papers

26th International Conference, CN 2019, Kamień Śląski, Poland, June 25–27, 2019, Proceedings