1. School of Computer Science McGill University Montréal Canada
2. Department of Computer Science and Electrical Engineering University of Ottawa Ottawa Canada
3. Department of Mathematical Sciences Carnegie Mellon University Pittsburgh Pennsylvania
4. Department of Computer Science University of British Columbia Vancouver Canada
5. School of Computer Science Carleton University Ottawa Canada
6. Projet COATI, CNRS, I3S (CNRS and UNS) UMR7271 and INRIA Sophia Antipolis France
7. Instituto Nacional de Matemática Pura e Aplicada (IMPA) Brazil
8. ERATA Kawarabayashi Large Graph Project, Global Research Center for Big Data Mathematics, National Institute of Informatics Japan