1. School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, Hunan, China
2. School of Biomedical Engineering, University of Reading, Reading, U.K.
3. Department of Computer Science and Data Science, School of Applied Computational Sciences, Meharry Medical College, Nashville, TN, USA
4. Department of Computing Science, University of Aberdeen, King’s College, Aberdeen, U.K.