Database and expert systems applications DEXA 2019 International Workshops BIOKDD, IWCFS, MLKgraphs and TIR, Linz, Austria, August 26–29, 2019 : proceedings - Anderst-Kotsis, Gabriele 1967-; Tjoa, A Min 1952-; Khalil, Ismail 1960- (Springer, 2019)