Information retrieval method with natural language interface
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United States of America Patent
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Aug 17, 2004
Grant Date -
N/A
app pub date -
Aug 9, 2000
filing date -
Aug 9, 2000
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Abstract
A method for retrieving documents in a knowledge database is disclosed in which a natural language query question is mapped to a plurality of equivalent strings. Both relevancies in meaning and in wording pattern are taken into account in ranking the equivalent strings by introducing respective weight factors. A document coupled to the top ranked equivalent string is retrieved and displayed to the questioner.
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