8th IWCC office Dept. of Computer Science and Electronics, Kyushu Institute of Technology 680-4 Kawazu, Iizuka City, Fukuoka Prefecture 820, JAPAN Fax: +81-948-29-7683, e-mail: IWCC@aquarius10.cse.kyutech.ac.jp WWW: http://aquarius10.cse.kyutech.ac.jp