Data Abstraction Technique for Relational Database Query Processing. - Takumi Ohtani; Takanobu Baba; Masayuki Inagawa; Takao Iwasaki; Kenzo Okuda; Katsuhiro Yamazaki (Syst. Comput. Jpn., 1986)

Context-aware Neural Machine Translation with Coreference Information. - Takumi Ohtani; Hidetaka Kamigaito; Masaaki Nagata; Manabu Okumura (DiscoMT@EMNLP, 2019)