1. L3S Research Center & Faculty of Electrical Engineering and Computer Science, Leibniz University Hannover Hannover Germany
2. Institute of Computer Science, Foundation for Research and Technology‐Hellas (FORTH‐ICS) Heraklion Greece
3. TIB Leibniz Information Centre For Science and Tecnhnology Hannover Germany
4. KDDLAB, Dipartimento di Informatica Università di Pisa Pisa Italy
5. Information Technologies Institute, The Centre for Research & Technology, Hellas (CERTH) Thessaloniki Greece
6. GESIS Leibniz Institute for the Social Sciences Cologne Germany
7. Knowledge Media Institute The Open University Milton Keynes UK
8. Faculty of Electrical Engineering and Computer Science TU Berlin Berlin Germany
9. Department of Computer Science KU Leuven Leuven Belgium
10. Institute for Legal Informatics Leibniz University of Hanover Hanover Germany
11. Innovation Lab, SCHUFA Holding AG Wiesbaden Germany
12. Electronics and Computer Science University of Southampton Southampton UK
13. Institute for Parallel and Distributed Systems, University of Stuttgart Germany