Identifying syntactic role of antecedent in korean relative clause using corpus and thesaurus information

Authors:
Hui-Feng Li;Jong-Hyeok Lee;Geunbae Lee
Affiliations:
Pohang University of Science and Technology, Pohang, Republic of Korea;Pohang University of Science and Technology, Pohang, Republic of Korea;Pohang University of Science and Technology, Pohang, Republic of Korea
Venue:
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
Year:
1998

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Abstract

This paper describes an approach to identifying the syntactic role of an antecedent in a Korean relative clause, which is essential to structural disambiguation and semantic analysis. In a learning phase, linguistic knowledge such as conceptual co-occurrence patterns and syntactic role distribution of antecedents is extracted from a large-scale corpus. Then, in an application phase, the extracted knowledge is applied in determining the correct syntactic role of an antecedent in relative clauses. Unlike previous research based on co-occurrence patterns at the lexical level, we represent co-occurrence patterns with concept types in a thesaurus. In an experiment, the proposed method showed a high accuracy rate of 90.4% in resolving ambiguities of syntactic role determination of antecedents.