Feature selection for ranking
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United States of America Patent
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-
Dec 14, 2010
Grant Date -
Jul 23, 2009
app pub date -
Jan 21, 2008
filing date -
Jan 21, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This disclosure describes various exemplary methods, computer program products, and systems for selecting features for ranking in information retrieval. This disclosure describes calculating importance scores for features, measuring similarity scores between two features, selecting features that maximizes total importance scores of the features and minimizes total similarity scores between the features. Also, the disclosure includes selecting features for ranking that solves an optimization problem. Thus, this disclosure identifies relevant features by removing noisy and redundant features and speeds up a process of model training.
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