Efficient data layout techniques for fast machine learning-based document ranking
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United States of America Patent
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Sep 10, 2013
Grant Date -
Mar 18, 2010
app pub date -
Sep 16, 2008
filing date -
Sep 16, 2008
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Abstract
A computer readable medium stores a program for optimization for a search, and has sets of instructions for receiving a first decision tree. The first decision tree includes several nodes, and each node is for comparing a feature value to a threshold value. The instructions are for weighting the nodes within the first decision tree, determining the weighted frequency of a first feature within the first decision tree, and determining the weighted frequency of a second feature within the first decision tree. The instructions order the features based on the determined weighted frequencies, and store the ordering such that values of features having higher weighted frequencies are retrieved more often than values of features having lower weighted frequencies within the first decision tree.
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