1. School of Automation, Guangdong University of Technology, Guangzhou, People's Republic of China
2. School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang, People's Republic of China
3. School of Mathematics and Statistics, Guangdong University of Technology, Guangzhou, People's Republic of China
4. MOE Key Laboratory of Intelligent Manufacturing, Shantou University, Shantou, Guangdong, People's Republic of China