2010 FeatureSelectionforSupportVecto

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This paper presents a novel wrapper-based feature selection method for Support Vector Regression (SVR) using its probabilistic predictions. The method computes the importance of a feature by aggregating the difference, over the feature space, of the conditional density functions of the SVR prediction with and without the feature. As the exact computation of this importance measure is expensive, two approximations are proposed. The effectiveness of the measure using these approximations, in comparison to several other existing feature selection methods for SVR, is evaluated on both artificial and real-world problems. The result of the experiment shows that the proposed method generally performs better, and at least as well as the existing methods, with notable advantage when the data set is sparse.

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 AuthorvolumeDate ValuetitletypejournaltitleUrldoinoteyear
2010 FeatureSelectionforSupportVectoJian-Bo Yang
Chong-Jin Ong
Feature Selection for Support Vector Regression Using Probabilistic PredictionKDD-2010 Proceedings10.1145/1835804.18358492010