Graph Access System for the Visually Impaired. - Tsuyoshi Ebina; Seiji Igi; Teruhisa Miyake; Hiroko Takahashi (APCHI, 1998)

Non-network Type Artificial Immune System and its Application to Automated Guided Vehicle (AGV) System. - Ben T. Nohara; Hiroko Takahashi (J. Adv. Comput. Intell. Intell. Informatics, 2000)