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 journalArticlepeer-review

    3 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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