JIAN SHEN1,2,3,4, DENGZHI LIU1,3, QI LIU1,3, DEBIAO HE5,* AND XINGMING SUN1,3
1Jiangsu Engineering Center of Network Monitoring
2Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology
3School of Computer and Software
Nanjing University of Information Science and Technology
Nanjing, 210044 P.R. China
4State Key Laboratory of Information Security, Institute of Information Engineering
Chinese Academy of Sciences
Beijing, 100864 P.R. China
5State Key Laboratory of Software Engineering, School of Computer
Wuhan University
Hubei, 430072 P.R. China
E-mail: {s_shenjian; liudzdh}@126.com; {qrankl; hedebiao; sunnudt}@163.com