Table 4.

Performance evaluation for stacking classifiers (three-level classification)

Stacking classifiers	Precision	Recall	F1 score
SVM, MLPC, XGB	0.749	0.747	0.746
SVM, MLPC, KNN	0.713	0.713	0.712
SVM, KNN, XGB	0.816	0.793	0.804
MLPC, KNN, NB	0.734	0.733	0.731
MLPC, KNN, XGB	0.767	0.766	0.765
SVM, MLPC, KNN, NB	0.749	0.747	0.746
SVM, MLPC, KNN, XGB	0.798	0.797	0.797
MLPC, KNN, NB, XGB	0.781	0.782	0.781
SVM, MLPC, KNN, NB, XGB	0.798	0.797	0.797