[Wang, Jing] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.^[Wang, Jing;Winter, Stephan;Langerenken, Daniel;Zhao, Haifeng] Univ Melbourne, Dept Infrastruct Engn, Melbourne, Vic 3010, Australia.^[Langerenken, Daniel] Univ Bremen, Cognit Syst Grp, D-28359 Bremen, Germany.