Prediction of G Protein-Coupled Receptors with SVM-Prot Features and Random Forest

Table 4

Performance measures for random forest from SVM-Prot feature.

Measure	Formula	Meaning
Sensitivity		Measure to avoid type II error
Specificity		Measure to avoid type I error
Accuracy		Measure of correctness
Matthew’s correlation coefficient		Correlation coefficient

TP (true positive) stands for the number of true GPCRs that are predicted correctly, TN (true negative) stands for the number of true non-GPCRs that are predicted correctly, FP (false positive) is the number of true non-GPCRs that are incorrectly predicted to be GPCRs, and FN (false negative) is the number of true GPCRs that are incorrectly predicted to be non-GPCRs.