Figure 2.

The mean TPR, FPR, accuracy and G-Mean for each term representation (TF and TFIDF) as a function of the OpCode n-gram size. While the mean TPRs, FPRs, accuracies and G-Means of the TF and TFIDF were quite identical, the mean accuracy and G-Mean of the 2-gram outperforms all the other n-grams with the lowest FPR.