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Analysis of the grammatical functions between adnoun and noun phrases in Korean using Support Vector Machines

Published online by Cambridge University Press:  12 August 2003

SONGWOOK LEE
Affiliation:
Department of Computer Science, Sogang University, 1 Sinsu-Dong. Mapo-Gu, Seoul 121-742, Korea e-mail: gospelo@nlprep.sogang.ac.kr
JUNGYUN SEO
Affiliation:
Department of Computer Science, Sogang University, 1 Sinsu-Dong. Mapo-Gu, Seoul 121-742, Korea e-mail: seojy@ccs.sogang.ac.kr
TAE-YEOUB JANG
Affiliation:
Department of English, Hankuk University of Foreign Studies, 270 Imun-dong, Dongdaemun-gu, Seoul 130-791, Korea e-mail: tae@hufs.ac.kr

Abstract

This study aims to improve the performance of identifying grammatical functions between an adnoun clause and a noun phrase in Korean. The key task is to determine the relation between the two constituents in terms of such functional categories as subject, object, adverbial and appositive. The problem is mainly caused by the fact that functional morphemes, which are considered to be crucial for identifying the relation, are omitted in the noun phrases. To tackle this problem, we propose to employ the Support Vector Machines (SVM) in determining the grammatical functions. Through an experiment with a tagged corpus for training SVMs, we found the proposed model to be more useful than both the Maximum Entropy Model (MEM) and the backed-off model.

Type
Papers
Copyright
2003 Cambridge University Press

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