A definitional question answering system based on phrase extraction using syntactic patterns

Kyoung Soo Han, Young In Song, Sang Bum Kim, Hae Chang Rim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We propose a definitional question answering system that extracts phrases using syntactic patterns which are easily constructed manually and can reduce the coverage problem. Experimental results show that our phrase extraction system outperforms a sentence extraction system, especially for selecting concise answers, in terms of recall and precision, and indicate that the proper text unit of answer candidates and the final answer has a significant effect on the system performance.

Original languageEnglish
Pages (from-to)1601-1605
Number of pages5
JournalIEICE Transactions on Information and Systems
VolumeE89-D
Issue number4
DOIs
Publication statusPublished - 2006 Apr

Keywords

  • Definitional question answering
  • Phrase extraction

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence

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