[1] Univ Sci & Technol China, Sch Informat Sci & Technol, Dept Automat, Hefei, Anhui, Peoples R China
[2] Tsinghua Univ, Dept Comp Sci & Technol, Beijing, Peoples R China
[3] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka, Japan
[4] Concordia Univ, Dept Mech Engn, Montreal, PQ, Canada