[1] Kanazawa Univ, Grad Sch Nat Sci & Techonl, Div Elect Engn & Comp Sci, Kanazawa, Ishikawa 9201192, Japan
[2] Kanazawa Univ, Fac Elect Informat & Commun Engn, Kanazawa, Ishikawa 9201192, Japan
[3] Chinese Acad Sci, Inst AI Ind, 168 Tianquan Rd, Nanjing, Peoples R China
[4] Shanghai Univ, Sch Comp Engn & Sci, Shanghai 200444, Peoples R China