Feature selection for ranking

Details Feature selection for ranking Feature selection for ranking

2008-01-21

2010-12-14

Wong, Leslie (Department: 2164)

Data processing: database and file management or data structures

Database and file access

Preparing data for information retrieval

C707S749000, C707S754000

Reexamination Certificate

active

07853599

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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