Extraction of important keywords in free text of questionnaire data and visualization of relationship among sentences. - Yuki Uchida; Tomohiro Yoshikawa; Takeshi Furuhashi; Eiji Hirao; Hiroto Iguchi (FUZZ-IEEE, 2009)

Extraction of Evaluation Keywords for Analyzing Product Evaluation in User-Reviews Using Hierarchical Keyword Graph. - Tomohiro Yoshikawa; Yuki Uchida; Takeshi Furuhashi; Eiji Hirao; Hiroto Iguchi (J. Adv. Comput. Intell. Intell. Informatics, 2009)

Detection of synonyms in specification documents. - Yasushi Kawai; Tomohiro Yoshikawa; Takeshi Furuhashi; Eiji Hirao; Ayako Kuno; Tomohisa Gotoh (SCIS&ISIS, 2012)

A Study on Extraction Method of Synonyms in Specification Documents. - Yasushi Kawai; Tomohiro Yoshikawa; Takeshi Furuhashi; Eiji Hirao; Ayako Kuno; Tomohisa Gotoh (SNPD, 2012)