1. School of Management Science and Engineering, Central Univ. of Finance and Economics, Beijing, China.
2. Associate Professor, School of Management Science and Engineering, Key Laboratory of Big Data Management Optimization and Decision of Liaoning Province, Dongbei Univ. of Finance and Economics, Dalian, China.
3. Professor, School of Management Science and Engineering, Central Univ. of Finance and Economics, Beijing, China (corresponding author).
4. Associate Professor, School of Management Science and Engineering, Central Univ. of Finance and Economics, Beijing, China.