NTCIR-2 Experiments Using Long Gram Based Indices. - Takashi Sato 005; Nao Hatta; Koji Hiraiwa; Kihei Kobata; Akihiro Furusho; Koto Han (NTCIR, 2001)

NTCIR-3 WEB Experiments at Osaka Kyoiku University - Towards Index Partitioning and Parallel Retrieval. - Takashi Sato 005; Yukikazu Kyo; Kihei Kobata (NTCIR, 2002)