Contents-Independent EPSS for the Web site. - Yuko Ikehata; Toshio Souya; Yoshinori Hijikata (SAINT, 2002)

Hierarchical Data Visualization Using a Fast Rectangle-Packing Algorithm. - Takayuki Itoh; Yumi Yamaguchi; Yuko Ikehata; Yasumasa Kajinaga (IEEE Trans. Vis. Comput. Graph., 2004)