Use of wrapper algorithms coupled with a random forests classifier for variable selection in large-scale genomic association studies.

Abstract excerpt

Modern large-scale genetic association studies generate increasingly high-dimensional datasets. Therefore, some variable selection procedure should be performed before the application of traditional data analysis methods, for reasons of both computational efficiency and problems related to overfitting. We describe here a "wrapper" strategy (SIZEFIT) for variable selection that uses a Random Forests classifier,...

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