Research on an Improved CHI Feature Selection Method

Yun Fei Qiu; Wei Wang; Da You Liu

doi:10.4028/www.scientific.net/AMM.241-244.2841

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 241-244Research on an Improved CHI Feature Selection...

Research on an Improved CHI Feature Selection Method

Abstract:

In order to make the features selected are distributed intensively in a certain class ,evenly in that certain class as much as possible, and make features appear in that certain class as many as possible , three adjusted parameters are added to the originally traditional CHI-square feature selection method through analyzing the relevance between features and classes. Var-CHI statistic method based on variance makes the precision and recall improved apparently by comparing the experiments of the traditional CHI-square feature selection method and the improved one.

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Periodical:

Applied Mechanics and Materials (Volumes 241-244)

Pages:

2841-2844

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.241-244.2841

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Online since:

December 2012

Authors:

Yun Fei Qiu, Wei Wang, Da You Liu

Keywords:

Chi Square Statistic, Feature Selection, Text Classification, Variance

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