1. School of Information and Electronics, Beijing Institute of Technology, Beijing, China
2. ModelBest Inc, Beijing, China
3. Department of Applied Mathematics, University of Twente, Enschede, The Netherlands
4. Guangdong Provincial Key Laboratory IRADS and the Department of Mathematical Science, BNU-HKBU United International College, Zhuhai, China
5. Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China
6. School of Economics and Management, University of Chinese Academy of Sciences, Beijing, China