Graph-Based Representation and Reasoning 23rd International Conference on Conceptual Structures, ICCS 2018, Edinburgh, UK, June 20-22, 2018, Proceedings - Chapman, Peter; Chapman, Peter; Endres, Dominik; Endres, Dominik; Pernelle, Nathalie; Pernelle, Nathalie (Springer International Publishing : Imprint: Springer, 2018)