Affiliation: | 1. School of Computer Science and Technology, China University of Mining and Technology, Xuzhou 221116, China;2. Xinjiang Technical Institutes of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China;3. College of Information Science and Engineering, Zaozhuang University, Zaozhuang 277100, China;4. School of Foreign Languages, Zaozhuang University, Zaozhuang, Shandong 277100, China |