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Table 3 Confusion matrix for N-Gram by class frequency

From: Computing symmetrical strength of N-grams: a two pass filtering approach in automatic classification of text documents

N-Grams

Class \(C_{1}\)

Class \(C_{2}\)

\(NG_{penalty\ shootout}=1\)

\(a=0\)

\(b=4\)

\(NG_{penalty\ shootout}=0\)

\(c=18\)

\(d=9\)