Keizo Oyama

2015

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Towards Serving "Delicious" Information within Its Freshness Date.
Hao Han|Takashi Nakayama|Junxia Guo|Keizo Oyama
Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume

2011

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Efficient Top-k Document Retrieval Using a Term-Document Binary Matrix.
Etsuro Fujita|Keizo Oyama
Information Retrieval Technology - 7th Asia Information Retrieval Societies Conference, AIRS 2011, Dubai, United Arab Emirates, December 18-20, 2011. Proceedings

2006

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An Analysis on Topic Features and Difficulties Based on Web Navigational Retrieval Experiments.
Masao Takaku|Keizo Oyama|Akiko N. Aizawa
Information Retrieval Technology, Third Asia Information Retrieval Symposium, AIRS 2006, Singapore, October 16-18, 2006, Proceedings

2005

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Overview of the NTCIR-5 WEB Navigational Retrieval Subtask 2 (Navi-2).
Keizo Oyama|Masao Takaku|Haruko Ishikawa|Akiko Aizawa|Hayato Yamana
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

2004

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An evaluation of the Web retrieval task at the third NTCIR workshop.
Koji Eguchi|Keizo Oyama|Emi Ishida|Noriko Kando|Kazuko Kuriyama
SIGIR Forum 2004 Volume 38 Issue 1
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Overview of the Informational Retrieval Task at NTCIR-4 WEB.
Koji Eguchi|Keizo Oyama|Akiko Aizawa|Haruko Ishikawa
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
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Overview of WEB Task at the Fourth NTCIR Workshop.
Keizo Oyama|Akiko Aizawa|Haruko Ishikawa
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
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Overview of the NTCIR-4 WEB Navigational Retrieval Task 1.
Keizo Oyama|Koji Eguchi|Haruko Ishikawa|Akiko Aizawa
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

2003

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Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, NTCIR-3, Tokyo, Japan, October 8-10, 2002
NTCIR Conference on Evaluation of Information Access Technologies (NTCIR) 2003
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System Evaluation Methods for Web Retrieval Tasks Considering Hyperlink Structure.
Koji Eguchi|Keizo Oyama|Emi Ishida|Noriko Kando|Kazuko Kuriyama
Proceedings of the Twelfth International World Wide Web Conference - Posters, WWW 2003, Budapest, Hungary, May 20-24, 2003

2002

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Overview of the Web Retrieval Task at the Third NTCIR Workshop.
Koji Eguchi|Keizo Oyama|Emi Ishida|Noriko Kando|Kazuko Kuriyama
Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, NTCIR-3, Tokyo, Japan, October 8-10, 2002
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The web retrieval task and its evaluation in the third NTCIR workshop.
Koji Eguchi|Keizo Oyama|Emi Ishida|Kazuko Kuriyama|Noriko Kando
SIGIR 2002: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 11-15, 2002, Tampere, Finland

1998

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Phrase Processing Methods for Japanese Text Retrieval.
Noriko Kando|Kyo Kageura|Masaharu Yoshioka|Keizo Oyama
SIGIR Forum 1998 Volume 32 Issue 2