Address:
College of Information Science, and
Department of Risk Engineering, Faculty of Systems and Information Engineering
University of Tsukuba,
1-1-1 Tennodai, Tsukuba 305-8573 Ibaraki, Japan
Tel:
+81-29-853-5502
Fax:
+81-29-853-5809
email:
itoh @ risk.tsukuba.ac.jp