Rules and Reasoning Second International Joint Conference, RuleML+RR 2018, Luxembourg, Luxembourg, September 18-21, 2018, Proceedings - Benzmüller, Christoph; Benzmüller, Christoph; Ricca, Francesco; Ricca, Francesco; Parent, Xavier; Parent, Xavier; Roman, Dumitru; Roman, Dumitru (Springer International Publishing : Imprint: Springer, 2018)