11Th Ifac Symposium on System Identification (Sysid 97), Date: JUL 08-11, 1997, Location: KITAKYUSHU, JAPAN, Sponsors: Int Federat Automat Control, Int Federat Operat Res, Sci Council Japan, Soc Instrument & Control Engineers, Inst Syst Control & Informat Engineers, Informat Proc Soc Japan, Inst Elect Engineers Japan, Japan Soc Mech Engineers, Soc Chem Engineers, Japan, Operat Res Soc Japan, Robot Soc Japan, Japan Soc Fuzzy Theory & Syst