1. School of Information Science and Engineering, Linyi University, Linyi 276005, China
2. Key Laboratory of Complex Systems and Intelligent Computing in Universities of Shandong (Linyi University), Linyi 276005, China
3. Department of Mathematics, Southeast University, Nanjing 210096, China
4. College of Science and Technology, North China Electric Power University, Baoding 071000, China
5. Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia