1. School of Statistics and Data Science, KLMDASR, LEBPS, and LPMC, Nankai University, Tianjin, People's Republic of China
2. School of Statistics and Management, Shanghai University of Finance and Economics, Shanghai, People's Republic of China
3. School of Statistics, University of International Business and Economics, Beijing, People's Republic of China
4. Academy of Mathematics and Systems Science, Chinese Academy of Sciences, and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing People's Republic of China
5. Department of Asset Management, China Minsheng Bank Corporation Limited, Beijing, People's Republic of China