1. The Frontier Information Technology Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, China
2. Henan Key Laboratory on Public Opinion Intelligent Analysis, Zhengzhou 450007, China
3. School of Information Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
4. Henan Key Laboratory of Cyberspace Situation Awareness, Zhengzhou 450001, China
5. School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China