1. School of Statistics and Management, Shanghai University of Finance and Economics, Shanghai, China
2. Department of Applied Mathematics, The Hong Kong Polytechnic University, Hong Kong SAR, China
3. School of Mathematics and Statistics, Wuhan University, Wuhan, China
4. Hubei Key Laboratory of Computational Science, Wuhan University, Wuhan, China
5. Yunnan Key Laboratory of Statistical Modeling and Data Analysis, Yunnan University, Kunming, China