1. Center for Ubiquitous Computing, University of Oulu, Finland
2. Civic A.I. Lab, Northeastern University, United States
3. Department of Computer Science, Aalborg University, Denmark
4. Yandex, Russian Federation
5. Information Service Engineering, Karlsruhe Institute of Technology, Germany
6. School of Computing and Communications, Lancaster University, United Kingdom
7. School of Computing Technologies, RMIT University, Australia
8. Web Information Systems, Delft University of Technology, Netherlands
9. School of Computing and Information Systems, University of Melbourne, Australia