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Chunking of Contiguous Nouns using Noun Semantic Classes

명사 의미 부류를 이용한 연속된 명사열의 구묶음

  • 안광모 (충북대학교 전자정보대학 컴퓨터공학부) ;
  • 서영훈 (충북대학교 전자정보대학 컴퓨터공학부)
  • Received : 2010.01.25
  • Accepted : 2010.03.12
  • Published : 2010.03.28

Abstract

This paper presents chunking strategy of a contiguous nouns sequence using semantic class. We call contiguous nouns which can be treated like a noun the compound noun phrase. We use noun pairs extracted from a syntactic tagged corpus and their semantic class pairs for chunking of the compound noun phrase. For reliability, these noun pairs and semantic classes are built from a syntactic tagged corpus and detailed dictionary in the Sejong corpus. The compound noun phrase of arbitrary length can also be chunked by these information. The 38,940 pairs of 'left noun - right noun', 65,629 pairs of 'left noun - semantic class of right noun', 46,094 pairs of 'semantic class of left noun - right noun', and 45,243 pairs of 'semantic class of left noun - semantic class of right noun' are used for compound noun phrase chunking. The test data are untrained 1,000 sentences with contiguous nouns of length more than 2randomly selected from Sejong morphological tagged corpus. Our experimental result is 86.89% precision, 80.48% recall, and 83.56% f-measure.

Keywords

Chunking;Compound Noun Phrase;Syntax Analysis;Natural Language Processing

Acknowledgement

Supported by : 충북대학교

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