Algorithms	Unigrams				Unigrams + Bigrams
Algorithms	Accuracy	F-measure (F-score)	Balanced Accuracy	MCC	Accuracy	F-measure (F-score)	Balanced Accuracy	MCC
Naïve Bayes with stemming	0.776	0.870	0.825	0.501	0.784	0.874	0.863	0.589
Naïve Bayes without stemming	0.776	0.870	0.819	0.490	0.782	0.872	0.824	0.512
Logistic Regression	0.772	0.869	0.834	0.512	0.782	0.874	0.874	0.608
Decision Tree	0.767	0.864	0.755	0.354	0.770	0.866	0.775	0.573
Multilayer Perceptron	0.782	0.869	0.773	0.434	0.788	0.875	0.823	0.521
SVM Networks	0.780	0.872	0.824	0.508	0,781	0.872	0.832	0.524
Random Forest	0.780	0.865	0.741	0.401	0.780	0.865	0.744	0.401
XGBoost	0.768	0.856	0.711	0.346	0.770	0.857	0.714	0.353