[1] Southwest Univ, Coll Artificial Intelligence, Chongqing 400715, Peoples R China
[2] Jiaotong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China
[3] Chongqing Univ Arts & Sci, Sch Elect Informat & Elect Engn, Chongqing 402160, Peoples R China