1. KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, 3001 Leuven, Belgium
2. ITER Organization, route de Vinon-sur-Verdon, 13067 St. Paul lez Durance Cedex, France
3. KU Leuven, Department of Computer Science, Celestijnenlaan 200A, 3001 Leuven, Belgium