1. College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, People’s Republic of China
2. Research Centre for Soft Energy Science, Nanjing University of Aeronautics and Astronautics, Nanjing, People’s Republic of China
3. School of Reliability and Systems Engineering, Beihang University, Beijing, People’s Republic of China
4. Department of Computing Science, University of Alberta, Edmonton, Canada