1. School of Economy and Management, Hanjiang Normal University, Shiyan, Hubei, China
2. School of Mathematics, Nanjing Audit University, Nanjing, Jiangsu, China
3. School of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu, China
4. School of Statistics and Data Science, Nanjing Audit University, Nanjing, Jiangsu, China