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Retrieval systems and methods employing probabilistic cross-media relevance feedback

  • US 8,538,896 B2
  • Filed: 08/31/2010
  • Issued: 09/17/2013
  • Est. Priority Date: 08/31/2010
  • Status: Active Grant
First Claim
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1. A non-transitory storage medium storing instructions executable by a digital processor to perform a method comprising:

  • optimizing weights of a document relevance scoring function to generate a trained document relevance scoring function ƒ

    (q,d) where q denotes a query and d denotes a document, wherein the document relevance scoring function comprises a weighted combination of scoring components including at least one pseudo-relevance scoring component and at least one cross-media relevance scoring component, and the optimizing is respective to a set of training documents including at least some multimedia training documents and a set of training queries and corresponding training document relevance annotations, the optimizing comprising optimizing a distribution-matchinq objective function respective to matching between;

    a distribution

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