Keyword Extraction from Incident Reports and Keyword Map Generation Method Using Self Organizing Map. - Yoshihiro Otani; Hiroharu Kawanaka; Tomohiro Yoshikawa; Koji Yamamoto; Tsuyoshi Shinogi; Shinji Tsuruoka (SMC, 2005)

Tendency discovery from incident report map generated by self organizing map and its development. - Hiroharu Kawanaka; Yoshihiro Otani; Koji Yamamoto; Tsuyoshi Shinogi; Shinji Tsuruoka (SMC, 2007)

A periodic FMM for Maxwell's equations in 3D and its applications to problems related to photonic crystals. - Yoshihiro Otani; Naoshi Nishimura (J. Comput. Phys., 2008)