1. School of Mathematical Sciences and Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua 321004, China, and the Jinhua Intelligent Manufacturing Research Institute, Jinhua 321004, China.
2. School of Mathematical Sciences, Zhejiang Normal University, Jinhua 321000, China; and Department of Data Science and Statistics, Fuzhou University Zhicheng College, Fuzhou 350002, China.
3. School of Mathematics, Southeast University, Nanjing 210096, China.
4. School of Automation, Central South University, Changsha 410083, China.