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Method and apparatus for machine learning a document relevance function

  • US 7,197,497 B2
  • Filed: 04/25/2003
  • Issued: 03/27/2007
  • Est. Priority Date: 04/25/2003
  • Status: Active Grant
First Claim
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1. A method for determining a document relevance function for estimating a relevance score of a document in a database with respect to a query, comprising:

  • (a) collecting a respective result set of documents from the database for each of a plurality of test queries;

    (b) for each test query of the plurality of test queries, selecting a subset of the documents in the respective result set; and

    assigning a set of training relevance scores to the documents in the subset; and

    (c) determining a relevance function based on the plurality of test queries, the subsets of documents, and the sets of training relevance scores;

    (d) outputting a list of one or more documents ordered based on the determined relevance function.

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