Adaptive and Incremental Query Expansion for Cluster-based Browsing. - Koji Eguchi; Hidetaka Ito; Akira Kumamoto; Yakichi Kanata (DASFAA, 1999)

Adaptive document clustering using incrementally expanded queries. - Koji Eguchi; Hidetaka Ito; Akira Kumamoto; Yakichi Kanata (Syst. Comput. Jpn., 2001)

Constructing Continuous-Time Chaos-Generating Templates Using Polynomial Approximation. - Hidetaka Ito; Shinji Okamoto; Kosuke Fujimoto; Akira Kumamoto (ECMS, 2010)