Solving contradiction in knowledge-base without interaction. - Kouichi Katsurada; Makoto Koyama; Kouzou Ohara; Noboru Babaguchi; Tadahiro Kitahashi (SMC, 1998)

Converting Ordinary Rules into Default Rules Based on Contradiction of Knowledge Base. - Kouichi Katsurada; Makoto Koyama; Kouzou Ohara; Noboru Babaguchi; Tadahiro Kitahashi (EJC, 2000)

Toshiba KIDS at NTCIR-3: Japanese and English-Japanese IR. - Tetsuya Sakai; Makoto Koyama; Masaru Suzuki; Toshihiko Manabe (NTCIR, 2002)

BRIDJE over a language barrier: cross-language information access by integrating translation and retrieval. - Tetsuya Sakai; Makoto Koyama; Masaru Suzuki; Akira Kumano; Toshihiko Manabe (IRAL, 2003)

Toshiba BRIDJE at NTCIR-4 CLIR: Monolingual/Bilingual IR and Flexible Feedback. - Tetsuya Sakai; Makoto Koyama; Akira Kumano; Toshihiko Manabe (NTCIR, 2004)

Toshiba ASKMi at NTCIR-4 QAC2. - Tetsuya Sakai; Yoshimi Saito; Yumi Ichimura; Makoto Koyama; Tomoharu Kokubu (NTCIR, 2004)

ASKMi: A Japanese Question Answering System based on Semantic Role Analysis. - Tetsuya Sakai; Yoshimi Saito; Yumi Ichimura; Makoto Koyama; Tomoharu Kokubu; Toshihiko Manabe (RIAO, 2004)

The effect of back-formulating questions in question answering evaluation. - Tetsuya Sakai; Yoshimi Saito; Yumi Ichimura; Tomoharu Kokubu; Makoto Koyama (SIGIR, 2004)

The Relationship between Answer Ranking and User Satisfaction in a Question Answering System. - Tomoharu Kokubu; Tetsuya Sakai; Yoshimi Saito; Hideki Tsutsui; Toshihiko Manabe; Makoto Koyama; Hiroko Fujii (NTCIR, 2005)

Toshiba BRIDJE at NTCIR-5 CLIR: Evaluation using Geometric Means. - Tetsuya Sakai; Toshihiko Manabe; Akira Kumano; Makoto Koyama; Tomoharu Kokubu (NTCIR, 2005)

Flexible pseudo-relevance feedback via selective sampling. - Tetsuya Sakai; Toshihiko Manabe; Makoto Koyama (ACM Trans. Asian Lang. Inf. Process., 2005)

Toshiba BRIDJE at NTCIR-6 CLIR: The Head/Lead Method and Graded Relevance Feedback. - Tetsuya Sakai; Makoto Koyama; Tatsuya Izuha; Akira Kumano; Toshihiko Manabe; Tomoharu Kokubu (NTCIR, 2007)

Pic-A-Topic: Efficient Viewing of Informative TV Contents on Travel, Cooking, Food and More. - Tetsuya Sakai; Tatsuya Uehara; Taishi Shimomori; Makoto Koyama; Mika Fukui (RIAO, 2007)