1. Key Laboratory of Knowledge Engineering with Big Data (Hefei University of Technology), Ministry of Education, China, Intelligent Interconnected Systems Laboratory of Anhui Province (Hefei University of Technology), Hefei 230009 China, and also with the School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230009 China (e-mail: lilei@hfut.edu.cn).
2. Key Laboratory of Knowledge Engineering with Big Data (Hefei University of Technology), Ministry of Education, China, Intelligent Interconnected Systems Laboratory of Anhui Province (Hefei University of Technology), Hefei 230009 China, and also with the School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230009 China (e-mail: 986528682@qq.com).
3. School of Computer Science, and Technology, University of Science and Technology of China, Hefei 230026 China (e-mail: hchen@ustc.edu.cn).
4. Mininglamp Academy of Sciences, Mininglamp Technologies, Beijing 100102 China (e-mail: wuxindong@mininglamp.com).