Hitoshi Isahara

2007

dblp
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
dblp
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
dblp
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
dblp
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
dblp
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

2006

doi dblp
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

doi dblp
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
dblp
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
dblp
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
dblp
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
dblp
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

2004

doi dblp
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
dblp
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
dblp
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
dblp
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
dblp
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

2002

dblp
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
dblp
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
dblp
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
dblp
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
dblp
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
dblp
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

2001

dblp
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
dblp
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

1999

dblp
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
dblp
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