1. Department of Information Science and Technology, Qingdao University of Science and Technology, Qingdao, China
2. Department of Economics and Management, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
3. Fujian Provincial Key Laboratory of Data Intensive Computing, College of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
4. Thapar Institute of Engineering and Technology, Patiala, India