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Synonym generation using online decompounding and transitivity

  • US 8,392,441 B1
  • Filed: 08/13/2010
  • Issued: 03/05/2013
  • Est. Priority Date: 08/15/2009
  • Status: Active Grant
First Claim
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1. A system comprising:

  • one or more processors; and

    a computer-readable storage device storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising;

    receiving a query submitted by a user to a search engine, wherein the query includes a first compound term; and

    in response to receiving the query, performing the following operations;

    generating one or more splits of the first compound term, wherein each split divides the compound term into two or more subterms, wherein at least one subterm is a term in a dictionary that associates terms with scores derived from a respective frequency of use of the subterm;

    assigning a score to one or more subterms of each split that are in the dictionary, wherein the score for a subterm is the score stored in the dictionary for the subterm;

    determining an overall score for each split from the scores for the subterms of the split;

    selecting a first split from the one or more splits according to the overall score for each split; and

    augmenting the query with a first synonym phrase, wherein the first synonym phrase is a synonym of a first subterm of the first split.

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