1. Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, 32 Vassar Street, Cambridge, MA 02139.
2. Future Cities Laboratory, Department of Architecture, ETH Zurich, 8092 Zurich, Switzerland.
3. Institute of 4-D Technologies, University of Applied Sciences and Arts, Northwestern Switzerland FHNW, Bahnhofstrasse 6, 5210 Windisch, Switzerland.