Database and Expert Systems Applications 29th International Conference, DEXA 2018, Regensburg, Germany, September 3-6, 2018, Proceedings, Part I - Hartmann, Sven; Hartmann, Sven; Ma, Hui; Ma, Hui; Hameurlain, Abdelkader; Hameurlain, Abdelkader; Pernul, Günther; Pernul, Günther; Wagner, Roland R.; Wagner, Roland R. (Springer International Publishing : Imprint: Springer, 2018)