1. Lancaster University, Lancaster, United Kingdom
2. University of Bristol, Bristol, United Kingdom
3. Saarland University, Saarland Informatics Campus, Saarbrücken, Germany
4. University of Copenhagen, Copenhagen, Denmark
5. TU Eindhoven, Eindhoven, Netherlands
6. Stanford University, Palo Alto, CA, USA
7. Aalborg University, Aalborg, Denmark