Visualization of decision borders on spherical SOM and its application to clustering. - Nobuo Matsuda; Heizo Tokutaka; Matashige Oyabu (ICONS, 2009)

Decision of Class Borders on Spherical SOM and Its Visualization. - Nobuo Matsuda; Heizo Tokutaka; Matashige Oyabu (ICONIP (2), 2009)

Classification Using Topologically Preserving Spherical Self-Organizing Maps. - Heizo Tokutaka; Masaaki Ohkita; Ying Hai; Kikuo Fujimura; Matashige Oyabu (WSOM, 2011)

The classification of the chain-link and other data by spherical SOM. - Heizo Tokutaka; Masaaki Ohkita; Matashige Oyabu; Kikuo Fujimura (SCIS&ISIS, 2012)

Classification of Chain-Link and Other Data with Spherical SOM. - Masaaki Ohkita; Heizo Tokutaka; Makoto Ohki; Matashige Oyabu; Kikuo Fujimura (WSOM, 2012)

The new proposal of the calculation for the significance degree by once SOM learning - Using iris, gene, and Tof-SIMS data. - Matashige Oyabu; Heizo Tokutaka; Masaaki Ohkita; M. Seno; Makoto Ohki (SCIS&ISIS, 2014)

Comparison of Spectrum Cluster Analysis with PCA and Spherical SOM and Related Issues Not Amenable to PCA. - Masaaki Ohkita; Heizo Tokutaka; Kazuhiro Yoshihara; Matashige Oyabu (WSOM, 2014)