1. College of Information Science and Technology, Donghua University, Shanghai, China
2. Department of Computer Science, Brunel University London, Uxbridge, Middlesex, U.K.
3. Artificial Intelligence Energy Research Institute, Northeast Petroleum University, Daqing, China
4. Key Laboratory of Advanced Perception and Intelligent Control of High-end Equipment, Ministry of Education, Anhui Polytechnic University, Wuhu, China