1. Southwestern University of Finance and EconomicsDepartment of of Economics and Information EngineeringChengduPeople's Republic of China
2. Key Laboratory of Financial Intelligence and Financial Engineering of Sichuan ProvinceSouthwestern University of Finance and EconomicsChengdu611130People's Republic of China
3. Collaborative Innovation Center for the Innovation and Regulation of Internet‐based FinanceSouthwestern University of Finance and EconomicsChengdu611130People's Republic of China
4. Sichuan Normal UniversityDepartment of EngineeringChengduPeople's Republic of China
5. Department of Computing ScienceUniversity of AlbertaEdmontonCanada