1. School of Mathematics and Statistics, the Center for Applied Mathematics of Jiangsu Province, and the Jiangsu International Joint Laboratory on System Modeling and Data Analysis, Nanjing University of Information Science and Technology, Nanjing, China
2. School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
3. School of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing, China