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INFORMATION RETRIEVAL SYSTEM AND METHOD USING A BAYESIAN ALGORITHM BASED ON PROBABILISTIC SIMILARITY SCORES

  • US 20100223258A1
  • Filed: 12/01/2006
  • Published: 09/02/2010
  • Est. Priority Date: 12/01/2005
  • Status: Abandoned Application
First Claim
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1. A computer-implemented method of scoring similarity between one or more query items and one or more other items, each of the items being represented by a feature vector xi comprising a plurality of digitally represented features xij, the method including:

  • a) receiving an input identifying the query items;

    b) for each of the other items computing a score which is a function of a conditional probability of the feature vectors xi of the query items being generated from a generating distribution p(xi

    defined by parameters θ

    given that the feature vector xi of the respective other item is generated from the generating distribution p(xi

    ; and

    c) returning a score for each of the other items, a list of some or all of the other items sorted by their respective score or a list of n other items which have the highest score.

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