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Table 3 Number of remaining features and percentage decrease according to the number of initial features, applying this using all the feature selection methods

From: Automatic migraine classification via feature selection committee and machine learning techniques over imaging and questionnaire data

  Number of features Percentage decrease
Gradient Tree-Boosting 4 90%
L1-based 21 48%
Random Forest 12 70%
Univariate 10 75%