1. Hubei Provincial Key Laboratory of Artificial Intelligence and Smart Learning, the School of Computer, and the National Language Resources Monitoring and Research Center for Network Media, Central China Normal University, Wuhan, China
2. Faculty of Artificial Intelligence in Education, Central China Normal University, Wuhan, China
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
4. School of Computer Science, Hubei University of Technology, Wuhan, China
5. College of Physics and Information Engineering, Fuzhou University, Fuzhou, China