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Cross-media similarity measures through trans-media pseudo-relevance feedback and document reranking

  • US 9,183,227 B2
  • Filed: 09/19/2008
  • Issued: 11/10/2015
  • Est. Priority Date: 09/19/2008
  • Status: Active Grant
First Claim
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1. A multimedia information retrieval method performed by an electronic device, the method comprising:

  • pre-computing values of at least one monomodal pairwise similarity measure for document pairs of a multimedia reference repository and storing the pre-computed values of at least one monomodal pairwise similarity measure for the document pairs of the multimedia reference repository in a storage of or accessible by the electronic device;

    after storing the pre-computed values of at least one monomodal pairwise similarity measure for the document pairs of the multimedia reference repository, performing an initial information retrieval process respective to the multimedia reference repository to return a set of initial repository documents;

    selecting and retrieving from the storage pre-computed values of the at least one monomodal pairwise similarity measure for candidate documents of the multimedia reference repository respective to repository documents of the set of initial repository documents; and

    identifying a set of top-ranked documents of the multimedia reference repository based at least in part on the retrieved pre-computed values of the at least one monomodal pairwise similarity measure for the candidate documents of the multimedia reference repository respective to repository documents of the set of initial repository documents.

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