Research Article

Evaluation and Formulation of Assessment Criteria for Dominant Distresses in Preventive Maintenance of Cement Concrete Pavements

Table 6

Description of evaluation metrics.

IndexCalculation formulaDescription

Accuracy (ACC)It refers to the ratio of the number of correctly classified cases
Precision (positive predictive value, PPV)It refers to the proportion of judging positives that are correctly identified
Recall (true-positive rate, TPR)It refers to the proportion of actual positives that are correctly identified
Specificity (true-negative rate, TNR)It refers to the proportion of actual negatives that are correctly identified
F1 scoreIt is a tradeoff between precision and recall