System and method for question answering document retrieval
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United States of America Patent
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Sep 8, 2009
Grant Date -
Mar 29, 2007
app pub date -
Oct 22, 2004
filing date -
Oct 24, 2003
priority date (Note) -
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Abstract
A retrieval device (22) retrieves associated documents on the basis of a keyword contained in a question serving as a retrieval request in question form from a user. The retrieval device (22) extracts descriptions associated with the keyword and contained in the retrieved documents as first summaries. A summary extraction unit (232) extracts descriptions corresponding to answers matching the question type of the question determined by a question type determination unit (231) as second summaries from original-document data which forms documents indicated by the document retrieval results. The original-document data is included in original-document data stored in an original-document database and forming each document as a retrieval target. An interface (21) displays the document retrieval results and the list of the extracted second summaries on a display device. The document retrieval results include the list of the extracted first summaries.
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