Hisao Mase


2004

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Two-Stage Patent Retrieval Method Considering Claim Structure
Hisao Mase | Tadataka Matsubayashi | Yuichi Ogawa | Makoto Iwayama | Tadaaki Oshio
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

2005

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NTCIR-5 Patent Retrieval Experiments at Hitachi
Hisao Mase | Tadataka Matsubayashi | Yuichi Ogawa | Takaaki Yayoi | Yusuke Sato | Makoto Iwayama
Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-5, National Center of Sciences, Tokyo, Japan, December 6-9, 2005

2007

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NTCIR-6 Patent Retrieval Experiments at Hitachi
Hisao Mase | Makoto Iwayama
Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-6, National Center of Sciences, Tokyo, Japan, May 15-18, 2007

2008

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NTCIR-7 Patent Mining Experiments at Hitachi
Hisao Mase | Makoto Iwayama
Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-7, National Center of Sciences, Tokyo, Japan, December 16-19, 2008

2010

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NTCIR-8 Research Paper Classification Experiments at Hitachi
Hisao Mase | Makoto Iwayama
Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-8, National Center of Sciences, Tokyo, Japan, June 15-18, 2010