Augmenting user, query, and document triplets using singular value decomposition
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United States of America Patent
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Jun 29, 2010
Grant Date -
Mar 8, 2007
app pub date -
Sep 8, 2005
filing date -
Sep 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for augmenting click-through data with latent information present in the click-through data for use in generating search results that are better tailored to the information needs of a user submitting a query is provided. The augmentation system creates a three-dimensional matrix with the dimensions of users, queries, and documents. The augmentation system then performs a three-order singular value decomposition of the three-dimensional matrix to generate a three-dimensional core singular value matrix and a left singular matrix for each dimension. The augmentation system finally multiplies the three-dimensional core singular value matrix by the left singular matrices to generate an augmented three-dimensional matrix that explicitly contains the information that was latent in the un-augmented three-dimensional matrix.
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