Using the K Nearest Neighbor Method and BM25 in the Patent Document Categorization Subtask at NTCIR-5

Masaki Murata, Toshiyuki Kanamaru, Tamotsu Shirado, Hitoshi Isahara. Using the K Nearest Neighbor Method and BM25 in the Patent Document Categorization Subtask at NTCIR-5. In Noriko Kando, editor, 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. National Institute of Informatics (NII), 2005. [doi]

Authors

Masaki Murata

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Toshiyuki Kanamaru

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Tamotsu Shirado

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Hitoshi Isahara

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