1. Zhejiang University,College of Computer Science and Technology,Hangzhou,P.R. China
2. Huzhou University,School of Information Engineering,Huzhou,P.R. China
3. Singapore University of Technology and Design,Information Systems Technology and Design Pillar,Singapore
4. Moxin (Huzhou) Tech. Co., LTD,Mafu Laboratory,Huzhou,P.R. China