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LEARNING A DOCUMENT RANKING FUNCTION USING QUERY-LEVEL ERROR MEASUREMENTS

  • US 20070233679A1
  • Filed: 04/03/2006
  • Published: 10/04/2007
  • Est. Priority Date: 04/03/2006
  • Status: Abandoned Application
First Claim
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1. A computer system for generating a document ranking function, comprising:

  • a training store that contains, for each of a plurality of queries, features of documents corresponding to the query, and an actual relevance of each document to the query;

    a error calculation component that calculates a normalized error between the actual relevances and calculated relevances of documents corresponding to a query; and

    a training component that trains a ranking function using the normalized errors as calculated by the error calculation component to indicate accuracy of the ranking function in generating relevances of the documents to their corresponding queries.

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