Patent ID: 8538896
Filing Date: 2013-09-17
Classification: G06F,G06K

Abstract:
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: performing a retrieval operation for an input query respective to a database using the trained document relevance scoring function to retrieve one or more documents from the database.