Figure 2From: Detecting unknown malicious code by applying classification techniques on OpCode patternsThe 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.Back to article page