2003

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Ricoh at CLEF 2003
Yuichi Kojima | Hideo Itoh | Hiroko Mano | Yasushi Ogawa
Working Notes for CLEF 2003 Workshop co-located with the 7th European Conference on Digital Libraries (ECDL 2003), Trondheim, Norway, August 21-22, 2003

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Ricoh at CLEF 2003
Yuichi Kojima | Hideo Itoh | Hiroko Mano | Yasushi Ogawa
Comparative Evaluation of Multilingual Information Access Systems, 4th Workshop of the Cross-Language Evaluation Forum, CLEF 2003, Trondheim, Norway, August 21-22, 2003, Revised Selected Papers

2002

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University of Tokyo/RICOH at NTCIR-3 Web Retrieval Task
Masashi Toyoda | Masaru Kitsuregawa | Hiroko Mano | Hideo Itoh | Yasushi Ogawa
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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Term Distillation for Cross-DB Retrieval
Hideo Itoh | Hiroko Mano | Yasushi Ogawa
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

2001

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RICOH at NTCIR-2
Yasushi Ogawa | Hiroko Mano
Proceedings of the Third Second Workshop Meeting on Evaluation of Chinese & Japanese Text Retrieval and Text Summarization, NTCIR-2, Tokyo, Japan, March 7-9, 2001

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RICOH at TREC-10: Web Track Ad-hoc Task
Hideo Itoh | Hiroko Mano | Yasushi Ogawa
Proceedings of The Tenth Text REtrieval Conference, TREC 2001, Gaithersburg, Maryland, USA, November 13-16, 2001

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Selecting Expansion Terms in Automatic Query Expansion
Hiroko Mano | Yasushi Ogawa
SIGIR 2001: Proceedings of the 24th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, September 9-13, 2001, New Orleans, Louisiana, USA

2000

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Structuring and Expanding Queries in the Probabilistic Model
Yasushi Ogawa | Hiroko Mano | Masumi Narita | Sakiko Honma
Proceedings of The Ninth Text REtrieval Conference, TREC 2000, Gaithersburg, Maryland, USA, November 13-16, 2000

1999

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Structuring and expanding queries in the probabilistic model
Yasushi Ogawa | Hiroko Mano | Masumi Narita | Sakiko Honma
Proceedings of The Eighth Text REtrieval Conference, TREC 1999, Gaithersburg, Maryland, USA, November 17-19, 1999

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