[Zhang, Xiao-Fei] Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.
[Dai, Dao-Qing; Zhang, Xiao-Fei; Le Ou-Yang] Sun Yat Sen Univ, Intelligent Data Ctr, Guangzhou 510275, Guangdong, Peoples R China.
[Dai, Dao-Qing; Zhang, Xiao-Fei; Le Ou-Yang] Sun Yat Sen Univ, Dept Math, Guangzhou 510275, Guangdong, Peoples R China.
[Zhang, Xiao-Fei; Yan, Hong] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China.
[Dai, Dao-Qing] Sun Yat Sen Univ, Intelligent Data Ctr, Xingang Rd West, Guangzhou 510275, Guangdong, Peoples R China.