Database and expert systems applications 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017 : proceedings : part II - Benslimane, Djamal; Damiani, Ernesto; Grosky, William; Hameurlain, Abdelkader 1952-; Sheth, Amit 1959-; Wagner, Roland R. (Springer, 2017)