A Method of Understanding Conceptual Diagrams. - Noriyoshi Yoneda; Koichi Kise; Shinobu Takamatsu; Kunio Fukunaga (MVA, 1994)

Interpretation of conceptual diagrams from line segments and strings. - Koichi Kise; Noriyoshi Yoneda; Shinobu Takamatsu; Kunio Fukunaga (ICDAR, 1995)