1. School of Science, Southwest University of Science and Technology, Mianyang, People's Republic of China
2. Visual Computing and Virtual Reality Key Laboratory of Sichuan Province, Sichuan Normal University, Chengdu, People's Republic of China
3. School of Computer Science and Technology, Southwest University of Science and Technology, Mianyang, People's Republic of China
4. Zhongtai Securities Institute of Financial Studies, Shandong University, Shandong, People's Republic of China