Milling Tool Wear State Recognition by Vibration Signal Using a Stacked Generalization Ensemble Model

Algorithm 1

Description of the SVM-RFE algorithm.

	Input: % Features matrix
% Class label
Out: % Ranking coefficient
(1)	begin
(2)	% Current feature subset index
(3)	% Feature ranking
(4)	while ()
(5)	% Obtain the current training sample
(6)	% Train classifier
(7)	% Computational ranking criteria
(8)	% Search for the lowest ranking feature attributes
(9)	% Update ranking feature index
(10)	% Delete the lowest ranking feature attribute
(11)	end
(14)	end