Table 13.

Standard deviation of results for the MIWS dataset.

Algorithm	Features	MIWS
		Precision	Recall	F1 score
MNB	TF-IDF	0.005774	0.011547	0.005774
	TF-IDF + bigrams	0.009574	0.005	0.008165
	TF-IDF + trigrams	0.01	0.01291	0.009574
	Word2vec	0.015	0.02	0.014142
SVM	TF-IDF	0.009574	0.01	0.005
	TF-IDF + bigrams	0.070711	0.025	0.017321
	TF-IDF + trigrams	0	0.01291	0.021602
	Word2vec	0.005	0.01	0.005
Random forest	TF-IDF	0.01	0.01	0.005
	TF-IDF + bigrams	0.005	0.005	0.005
	TF-IDF + trigrams	0.02	0.015	0.04
	Word2vec	0.005	0.005	0.005
XGBoost	TF-IDF	0	0.005	0.01
	TF-IDF + bigrams	0.009574	0.005	0.01893
	TF-IDF + trigrams	0.005	0.01	0.005
	Word2vec	0.008165	0.009574	0.008165