テキストの結束性判定のための entity grid モデルの素性の検討  [in Japanese] An Investigation of Features for Entity Grid Model in Evaluating Local Coherence of Text  [in Japanese]

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Author(s)

    • 横野 光 YOKONO Hikaru
    • 東京工業大学精密工学研究所 Precision and Intelligence Laboratory, Tokyo Institute of Technology
    • 奥村 学 OKUMURA Manabu
    • 東京工業大学精密工学研究所 Precision and Intelligence Laboratory, Tokyo Institute of Technology

Abstract

テキスト結束性は文法的な性質による文章の関連性であり,テキストの文章としての評価に用いられる.本論文では文間における要素の構文役割の遷移に着目した entity grid モデルにおいて,テキスト結束性に関わるとされる接続関係,照応関係や語彙結束性といった特徴と構文役割の拡張の有効性について検討する.評価実験として,文順序と自動要約の主観評価を利用したテキスト結束性の比較判定を行い,その結果.照応関係と構文役割の拡張,語彙的結束性に関して日本語語彙大系を利用した構成要素の概念による抽象化が entity grid モデルによるテキスト結束性の判定において有効であることが明らかになった.Local coherence, which captures text relevance at the level of sentence-to-sentence transitions, is used for evaluation of text quality. For entity grid model focusing on transitions of syntactic role of entity between sentences, we investigate the effectiveness of features such as conjunction, coreference, syntactic role expansion and entity abstraction using Nihongo-Goi-Taikei. Through experiments of the sentence ordering task and the comparing summaries based on subjective assessment, we show that these features contribute to improve the performance of entity grid model.

Local coherence, which captures text relevance at the level of sentence-to-sentence transitions, is used for evaluation of text quality. For entity grid model focusing on transitions of syntactic role of entity between sentences, we investigate the effectiveness of features such as conjunction, coreference, syntactic role expansion and entity abstraction using Nihongo-Goi-Taikei. Through experiments of the sentence ordering task and the comparing summaries based on subjective assessment, we show that these features contribute to improve the performance of entity grid model.

Journal

  • IPSJ SIG Notes

    IPSJ SIG Notes 2009(2(2009-NL-189)), 97-104, 2009-01-15

    Information Processing Society of Japan (IPSJ)

Codes

  • NII Article ID (NAID)
    110007123541
  • NII NACSIS-CAT ID (NCID)
    AN10115061
  • Text Lang
    JPN
  • Article Type
    Technical Report
  • Data Source
    NII-ELS  IPSJ 
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