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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Chemosphere. 2018 Dec 19;220:204–215. doi: 10.1016/j.chemosphere.2018.12.131

Table 3:

Statistical results of individual classification models and the two consensus models on the external set of 50 chemicals True Positives (TP) indicates the number of correctly classified positive chemicals, False Negatives (FN) indicates the number of misclassified positive chemicals, True Negative (TN) is the number of correctly classified negative chemicals, False positive (FP) refers to the misclassified experimentally negative chemicals. False rate is the fraction of incorrect predictions. Statistical parameters are the same as reported in Table 1.

SVM ANN DT SARpy1 SARpy2 Consensus I Consensus II
TP 8 15 15 14 15 7 15
FN 7 0 0 1 0 0 0
FP 8 11 18 12 16 6 11
TN 25 22 17 23 19 13 24
Total 48 48 50 50 50 26 50
accuracy 0.69 0.77 0.64 0.74 0.68 0.77 0.78
specificity 0.76 0.67 0.49 0.66 0.54 0.68 0.69
sensitivity 0.53 1.00 1.00 0.93 1.00 1.00 1.00
MCC 0.29 0.62 0.47 0.54 0.51 0.61 0.63
BA 0.65 0.83 0.74 0.80 0.77 0.84 0.84
False rate 0.31 0.23 0.36 0.26 0.32 0.23 0.22
Youden 0.29 0.67 0.49 0.59 0.54 0.68 0.69