Database and Expert Systems Applications - DEXA 2021 Workshops BIOKDD, IWCFS, MLKgraphs, AI-CARES, ProTime, AISys 2021, Virtual Event, September 27–30, 2021, Proceedings - Kotsis, Gabriele; Tjoa, A Min; Khalil, Ismail; Moser, Bernhard; Mashkoor, Atif; Sametinger, Johannes; Fensel, Anna; Martinez-Gil, Jorge; Fischer, Lukas; Czech, Gerald; Sobieczky, Florian; Khan, Sohail (Communications in Computer and Information Science, 2021)