1. School of Information and Control Engineering, Qingdao University of Technology, Qingdao, Shandong, China
2. Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
3. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China
4. Department of Industrial Management, National Taiwan University of Science and Technology, Taipei, Taiwan