2007

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Using the K-Nearest Neighbor Method and SMART Weighting in the Patent Document Categorization Subtask at NTCIR-6
Masaki Murata | Toshiyuki Kanamaru | Tamotsu Shirado | Hitoshi Isahara
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

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Japanese Opinion Extraction System for Japanese Newspapers Using Machine -Learning Method
Toshiyuki Kanamaru | Masaki Murata | Hitoshi Isahara
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

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Extraction of important numerical pairs from text documents and visualization of them
Masaki Murata | Koji Ichii | Qing Ma | Tamotsu Shirado | Toshiyuki Kanamaru | Sachiyo Tsukawaki | Hitoshi Isahara
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

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Applying Multiple Characteristics and Techniques in the NICT Information Retrieval System at NTCIR-6
Masaki Murata | Jong-Hoon Oh | Qing Ma | Hitoshi Isahara
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

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A System for Answering Non-Factoid Japanese Questions by Using Passage Retrieval Weighted Based on Type of Answer
Masaki Murata | Sachiyo Tsukawaki | Toshiyuki Kanamaru | Qing Ma | Hitoshi Isahara
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

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Evaluation of Web Search Engines with Thai Queries
Virach Sornlertlamvanich | Shisanu Tongchim | Hitoshi Isahara
Proceedings of the 1st International Workshop on Evaluating Information Access, EVIA 2007, National Center of Sciences, Tokyo, Japan, May 15, 2008

2006

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Japanese Question-Answering System for Contextual Questions Using Simple Connection Method, Decreased Adding with Multiple Answers, and Selection by Ratio
Masaki Murata | Masao Utiyama | Hitoshi Isahara
Information Retrieval Technology, Third Asia Information Retrieval Symposium, AIRS 2006, Singapore, October 16-18, 2006, Proceedings

2005

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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
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

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Japanese-to-English and English-to-Japanese Cross-Language Question-Answering System Using Decreased Adding with Multiple Answers at NTCIR-5
Masaki Murata | Masao Utiyama | Hitoshi Isahara
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

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Japanese Question-Answering System Using Decreased Adding with Multiple Answers at NTCIR 5
Masaki Murata | Masao Utiyama | Hitoshi Isahara
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

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Applying Multiple Characteristics and Techniques in the NICT Information Retrieval System in NTCIR-5
Masaki Murata | Qing Ma | Hitoshi Isahara
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

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Acquisition of Translation Knowledge of Syntactically Ambiguous Named Entity
Takeshi Kutsumi | Takehiko Yoshimi | Katsunori Kotani | Ichiko Sata | Hitoshi Isahara
Advances in Information Retrieval, 27th European Conference on IR Research, ECIR 2005, Santiago de Compostela, Spain, March 21-23, 2005, Proceedings

2004

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NYU/CRL QA System for QAC-2
Satoshi Sekine | Kiyoshi Sudo | Yusuke Shinyama | Chikashi Nobata | Kiyotaka Uchimoto | Hitoshi Isahara
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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Japanese Question-Answering System Using Decreased Adding with Multiple Answers
Masaki Murata | Masao Utiyama | Hitoshi Isahara
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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Comparison of Feature Usage at TSC-3 Summarization Tasks
Chikashi Nobata | Satoshi Sekine | Kiyotaka Uchimoto | Hitoshi Isahara
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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Applying Multiple Characteristics and Techniques to Obtain High Levels of Performance in Information Retrieval at NTCIR-4
Masaki Murata | Qing Ma | Hitoshi Isahara
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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Document Clustering Using Linear Partitioning Hyperplanes and Reallocation
Canasai Kruengkrai | Virach Sornlertlamvanich | Hitoshi Isahara
Information Retrieval Technology, Asia Information Retrieval Symposium, AIRS 2004, Beijing, China, October 18-20, 2004, Revised Selected Papers

2002

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Using the Diff Command in Patent Documents
Masaki Murata | Hitoshi Isahara
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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Study on Merging Multiple Results from Information Retrieval System
Hiromi Ozaku | Masao Utiyama | Hitoshi Isahara | Yasuyuki Kono | Masatsugu Kidode
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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NYU/CRL QA System, QAC Question Analysis and CRL QA Data
Satoshi Sekine | Kiyoshi Sudo | Yusuke Shinyama | Chikashi Nobata | Kiyotaka Uchimoto | Hitoshi Isahara
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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Applying Multiple Characteristics and Techniques to Obtain High Levels of Performance in Information Retrieval
Masaki Murata | Qing Ma | Hitoshi Isahara
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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A Summarization System with Categorization of Document Sets
Chikashi Nobata | Satoshi Sekine | Kiyotaka Uchimoto | Hitoshi Isahara
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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A Question-Answering System Using Unit Estimation and Probabilistic Near-Terms IR
Masaki Murata | Masao Utiyama | Hitoshi Isahara
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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Sentence Extraction System Assembling Multiple Evidence
Chikashi Nobata | Satoshi Sekine | Masaki Murata | Kiyotaka Uchimoto | Masao Utiyama | Hitoshi Isahara
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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CRL at NTCIR2
Masaki Murata | Masao Utiyama | Qing Ma | Hiromi Ozaku | Hitoshi Isahara
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

1999

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Term Recognition by Using Different Field Corpora
Kiyotaka Uchimoto | Satoshi Sekine | Masaki Murata | Hiromi Ozaku | Hitoshi Isahara
Proceedings of the First NTCIR Workshop on Research in Japanese Text Retrieval and Term Recognition, NTCIR-1, Tokyo, Japan, August 30 - September 1, 1999

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Information Retrieval Based on Stochastic Models
Masaki Murata | Kiyotaka Uchimoto | Hiromi Ozaku | Hitoshi Isahara
Proceedings of the First NTCIR Workshop on Research in Japanese Text Retrieval and Term Recognition, NTCIR-1, Tokyo, Japan, August 30 - September 1, 1999

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