[1] Yunnan Univ, Yunnan Key Lab Stat Modeling & Data Anal, Sch Math & Stat, Kunming, Yunnan, Peoples R China
[2] Anhui Univ, Sch Elect Engn & Automat, Hefei, Peoples R China
[3] Fuyang Normal Univ, Sch Math & Stat, Fuyang, Peoples R China
[4] Qingdao Univ, Sch Automat, Inst Complex Sci, Qingdao, Peoples R China