1. School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, China
2. School of Mathematics and Computer Science, Zhejiang Normal University, Jinhua, China
3. Center for Intelligent Healthcare, Coventry University, Coventry, U.K.
4. Department of Computer Science and Engineering, Lehigh University, Bethlehem, PA, USA
5. Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, China