[Cui, Jianqun; Hsu, Chingfang] Cent China Normal Univ, Hubei Prov Key Lab Artificial Intelligence & Smart, Wuhan 430079, Peoples R China.
[Cui, Jianqun; Hsu, Chingfang] Cent China Normal Univ, Comp Sch, Wuhan 430079, Peoples R China.
[Xia, Zhe; Xia, Z] Wuhan Univ Technol, Dept Comp Sci, Wuhan 430071, Peoples R China.
[Harn, Lein] Univ Missouri Kansas City, Dept Comp Sci Elect Engn, Kansas City, MO 64110 USA.
[Au, Man Ho] Hong Kong Polytech Univ, Dept Comp, Hong Kong, Peoples R China.