Papers - NAGATA Ryo
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“Reinforcing English countability prediction with one countability per discourse property,”（共著）
Nagata, R., Kawai, A., Morihiro, K., and Isu, N.
Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics Main Conference Poster Sessions, 595 - 602 2006.7
Joint Work
Authorship：Lead author
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“半自動フィードバックを利用した英文誤り検出手法の性能向上”（共著）
永田亮，河合敦夫，森広浩一郎，桝井文人，井須尚紀
言語処理学会第12回年次大会発表論文集 464 - 467 2006.3
Joint Work
Authorship：Lead author
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“Detecting article errors based on the mass count distinction,”（共著） Reviewed
Nagata, R., Wakana, T., Masui, F., Kawai, A., and Isu, N.
Lecture Notes in Artificial Intelligence, Dale, R., Wong, K.F., Su, J., Kwong, O.Y. (Eds.), Springer-Verlag, 815 - 826 2005.10
Joint Work
Authorship：Lead author
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“英語名詞の可算／不可算判定手法”（共著） Reviewed
永田亮，桝井文人，河合敦夫，井須尚紀
自然言語処理 12 ( 4 ) 227 - 243 2005.8
Joint Work
Authorship：Lead author
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“Extracting collocations for determining articles in English writing,”（共著） Reviewed
Nagata, R., Iguchi, T., Furuichi, Y., Masui, F., Kawai, A., and Isu, N.
Proceedings of the Pacific Association for Computational Linguistics (PACLING) 05, 264 - 268 2005.8
Joint Work
Authorship：Lead author
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A method for distinguishing English mass and count nouns
NAGATA RYO, MASUI FUMITO, KAWAI ATSUO, ISU NAOKI
Journal of Natural Language Processing 12 ( 4 ) 227 - 243 2005.8
Joint Work
Publisher：The Association for Natural Language Processing
This paper proposes an unsupervised method for distinguishing mass and countnouns in context using decision lists.The mass count distinction is particularly im-portant in detecting errors concerning the articles and the singular/plural usage inthe writing of Japanese learners of English.Decision lists are learned from a set oftraining data that consist of instances of the target noun used as mass or count. Ingeneral, it is costly and time-consuming to acquire a set of training data.To solvethe problem, this paper also proposes a method for automatically generating trainingdata.Experiments show that the proposed method achieves an accuracy of 83.9%in distinguishing mass and count nouns in context.
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A statistical model based on the three head words for detecting article errors
Ryo NAGATA, Tatsuya IGUCHI, Fumito MASUI, Atsuo KAWAI, Naoki ISU
IEICE TRANSACTIONS on Information and Systems Vol.E88-D ( No.7 ) 2005.7
Joint Work
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“A statistical model based on the three head words for detecting article errors,”（共著） Reviewed
Nagata, R.，Iguchi, T.，Masui, F.，Kawai, A., and Isu, N.
IEICE Transactions on Information and Systems, Vol.E88-D, ( 7 ) 1700 - 1706 2005.7
Joint Work
Authorship：Lead author
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“Recognizing article errors in the writing of Japanese learners of English,”（共著） Reviewed
Nagata, R.，Iguchi, T.，Wakidera, K.，Masui, F.，and Kawai, A.
Systems and Computers in Japan, 36 ( 7 ) 54 - 63 2005.6
Joint Work
Authorship：Lead author
（紹介掲載）
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“A method for rating English texts by reading level for Japanese learners of English,”（共著） Reviewed
Nagata, R.，Iguchi, T.，Masui, F.，and Kawai, A.
Systems and Computers in Japan, 36 ( 6 ) 1 - 13 2005.6
Joint Work
Authorship：Lead author
（紹介掲載）
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“前置詞情報を利用した冠詞誤り検出”（共著） Reviewed
永田亮，井口達也，脇寺健太，桝井文人，河合敦夫，井須尚紀
電子情報通信学会論文誌，Vol.J88-D-I ( 4 ) 873 - 881 2005.4
Joint Work
Authorship：Lead author
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前置詞情報を利用した冠詞誤り検出
永田亮, 井口達也 脇寺健太 桝井文人 河合敦夫 井須尚紀
電子情報通信学会論文誌 Vol.J88-D-I ( No.4 ) 2005.4
Joint Work
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Statistical Approaches to Detecting Article Errors in the Writing of Japanese Learners of English
Ryo Nagata
2005.3
Single Work
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“可算／不可算判定を用いた英文の冠詞誤り検出”（共著）
若菜崇宏，永田亮，河合敦夫，桝井文人
言語処理学会第11回年次大会発表論文集 783 - 786 2005.3
Joint Work
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“An unsupervised method for distinguishing mass and count nouns in context,”（共著） Reviewed
Nagata, R., Masui, F., Kawai, A., and Isu, N.
Proceedings of the Sixth International Workshop on Computational Semantics (IWCS-6), 213 - 224 2005.1
Joint Work
Authorship：Lead author
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“A method for distinguishing mass and count nouns based on contextual information,”（共著） Reviewed
Nagata, R., Masui, F., Kawai, A., and Isu, N.
Proceedings of the Fourth international Symposium on Human and Artificial Intelligence Systems, 516 - 521 2004.12
Joint Work
Authorship：Lead author
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“Recognizing article errors based on the three head words,”（共著） Reviewed
Nagata, R., Masui, F., Kawai, A., and Isu, N.
Proceedings of Cognition and Exploratory Learning in Digital Age, 165 - 172 2004.12
Joint Work
Authorship：Lead author
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“英文アブストラクトを対象とした冠詞付与手法”（共著）
井口達也，永田亮，河合敦夫
電気関係学会東海支部連合大会講演論文集 0426 2004.9
Joint Work
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A Method for Rating English Texts by Reading Level for Japanese Learners of English
NAGATA Ryo, IGUCHI Tatsuya, MASUI Fumito, KAWAI Atsuo
The Transactions of the Institute of Electronics,Information and Communication Engineers. 87 ( 6 ) 1329 - 1338 2004.6
Joint Work
Publisher：The Institute of Electronics, Information and Communication Engineers
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“日本人英語学習者を対象とした英文難易度判定手法”（共著） Reviewed
永田亮，井口達也，桝井文人，河合敦夫
電子情報通信学会論文誌, Vol.J87-D-II, ( 6 ) 1329 - 1338 2004.6
Joint Work
Authorship：Lead author