Data retrieval using conceptual fuzzy sets. - Tomohiro Takagi; Kazushi Kawase; Kazuhiko Otsuka; Toru Yamaguchi (FUZZ-IEEE, 2000)

Image Retrieval using Conceptual Fuzzy Sets. - Tomohiro Takagi; Kazushi Kawase; Kazuhiko Otsuka (J. Adv. Comput. Intell. Intell. Informatics, 2000)

On the recognition of timbre - A first step toward understanding how hearing-impaired people perceive timbre. - Rumi Hiraga; Kazuhiko Otsuka (SMC, 2012)