A Feature Concentration Method for Character Recognition. - Kazuaki Komori; Takahiko Kawatani; Kenichiro Ishii; Yukiyasu Iida (IFIP Congress, 1977)

Shape quantification of handprinted numerals using recognition results and its application. - Takahiko Kawatani; Nobuo Miyamoto (Syst. Comput. Jpn., 1992)

Handprinted numeral recognition with the learning quadratic discriminant function. - Takahiko Kawatani (ICDAR, 1993)

Handprinted numerals recognition by learning distance function. - Takahiko Kawatani (Syst. Comput. Jpn., 1994)

Character recognition performance improvement using personal handwriting characteristics. - Takahiko Kawatani (ICDAR, 1995)

Handwritten numeral recognition with the improved LDA method. - Takahiko Kawatani; Hiroyuki Shimizu; Marc McEachern (ICPR, 1996)

Complementary Classifier Design Using Difference Principal Components. - Takahiko Kawatani; Hiroyuki Shimizu (ICDAR, 1997)

Handwritten Kanji recognition with the LDA method. - Takahiko Kawatani; Hiroyuki Shimizu (ICPR, 1998)

Handwritten Kanji Recognition using Combined Complementary Classifiers in a Cascade Arrangement. - Takahiko Kawatani (ICDAR, 1999)

Handwritten Kanji Recognition with Determinant Normalized Quadratic Discriminant Function. - Takahiko Kawatani (ICPR, 2000)

Topic difference factor extraction between two document sets and its application to text categorization. - Takahiko Kawatani (SIGIR, 2002)