1. School of Computer Science and Technology Qilu University of Technology (Shandong Academy of Sciences) Jinan P.R. China
2. Shandong Computer Science Center (National Supercomputer Center in Jinan) Jinan P. R. China
3. Shandong Laboratory of Computer Networks Jinan P. R. China
4. School of Electrical Engineering and Automation Hefei University of Technology Hefei P. R. China
5. Institute of Complexity Science Qingdao University Qingdao China
6. School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore
7. Department of Computer Science and Technology Shandong University of Finance and Economics Jinan P. R. China