1. Inria Paris & University of Trento, Paris, France
2. Carnegie Mellon University, Pittsburgh, PA, USA
3. Inria Paris, Paris, France
4. Inria Paris & University of Virginia, Charlottesville, VA, USA
5. Inria Paris & ENS Paris, Paris, France
6. University of Pennsylvania, Philadelphia, PA, USA
7. Portland State University, Portland, OR, USA