Relation between the IADL and Physical Fitness Tests Focusing on Uncertainty of Answering Questionnaire in Elderly Women. - Hayato Uchida; Yutaka Hata; Kensaku Suei; Hiroshi Nakagawa; Hideyasu Aoyama (Fuzzy Days, 1999)

Rough Set Based Knowledge Discovery of Interface for the Internet Usage among Japanese Elderly Women. - Hayato Uchida; Yutaka Hata; Shinro Matsuura; Tadahiro Tsuchikawa; Yoshio Morotomi; Hideyasu Aoyama (Fuzzy Days, 2001)