9th Iberoamerican Conference, jAUTI 2020, Aveiro, Portugal, December 18, 2020, Revised Selected Papers

First International Conference, AIS2C2 2021, Greater Noida, India, March 22–23, 2021, Revised Selected Papers

First International Conference, AII 2021, Nottingham, UK, July 30–31, 2021, Proceedings

First International Conference, ICCEDE 2020, Greater Noida, India, October 9-10, 2020, Revised Selected Papers

15th International Conference, PCT 2021, Volgograd, Russia, March 30 – April 1, 2021, Revised Selected Papers

15th International Conference, KMO 2021, Kaohsiung, Taiwan, July 20-22, 2021, Proceedings

14th International Conference, QUATIC 2021, Algarve, Portugal, September 8–11, 2021, Proceedings

5th International Conference, ICACDS 2021, Nashik, India, April 23–24, 2021, Revised Selected Papers, Part I

5th International Conference, ICACDS 2021, Nashik, India, April 23–24, 2021, Revised Selected Papers, Part II

28th European Conference, EuroSPI 2021, Krems, Austria, September 1–3, 2021, Proceedings