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	Specificitet	Balanserad träffsäkerhet	Precision
Ämnesområde	Modellutvärdering	Modellutvärdering	Modellutvärdering
Familj	MCDM	MCDM	MCDM
Ursprungsår	20th century	2010	20th century
Upphovsperson	Historical statistical foundations	Brodersen, Ong, Stephan, and Buhmann	Historical statistical foundations
Typ	Evaluation metric	Evaluation metric	Evaluation metric
Ursprungskälla	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.	Brodersen, K. H., Ong, C. S., Stephan, K. E., & Buhmann, J. M. (2010). The balanced accuracy and its posterior distribution. 20th International Conference on Pattern Recognition (ICPR), 3121-3124.	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.
Alias	True Negative Rate, TNR	Average Recall, Equal-weight Average Sensitivity	Positive Predictive Value, PPV
Närliggande	5	5	5
Sammanfattning	Specificity measures the proportion of actual negative cases that were correctly identified as negative by the classifier. It answers the question: 'Of all the cases that were truly negative, how many did we correctly reject?' Specificity is complementary to recall and is essential when false positives are costly.	Balanced accuracy is the average of recall values computed for each class separately. It corrects for class imbalance by giving equal weight to the performance on each class, regardless of class frequency in the dataset.	Precision measures the proportion of positive predictions that were actually correct. It answers the question: 'Of all the cases we predicted as positive, how many were truly positive?' Precision is critical in scenarios where false positives are costly.