1. School of Information Science and Engineering, Huaqiao University, Xiamen, China
2. School of Engineering, Huaqiao University, Quanzhou, China
3. Department of Computer Science and Information Engineering, Ilan University, Yilan, Taiwan
4. Machine Learning and I-health International Cooperation Base of Zhejiang Province, Hangzhou Dianzi University, Hangzhou, China
5. College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China