Dimitris KontokostasDimitris Kontokostas is a Knowledge Engineer and Semantic Web researcher at the University of Leipzig and the DBpedia Association. He has been working on knowledge representation and knowledge management of large-scale knowledge graphs and data qualiy. Dimitris is a member of the RDF Data Shapes working group, a member and the chairman of the Shape Expressions Community Group, and co-editor of the SHACL W3C Recommendation. He is the creator of RDFUnit, a tool and unit-testing framework for RDF validation that supports SHACL, OSLC Resource Shapes, and DC Description Set Profiles. Read More Read Less