1. Laboratoire de Recherche en Informatique (LRI‐CNRS UMR 8623)University of Paris‐Sud91405OrsayFrance
2. School of EECSPeking UniversityBeijing100871People's Republic of China
3. School of Electronic Information and CommunicationsHuazhong University of Science and TechnologyWuhan430074HubeiPeople's Republic of China
4. School of AutomationWuhan University of TechnologyWuhan430070People's Republic of China
5. School of Information EngineeringWuhan University of TechnologyWuhan430070People's Republic of China