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	Precision-Recall AUC	Precision	Recall (känslighet)
Ämnesområde	Modellutvärdering	Modellutvärdering	Modellutvärdering
Familj	MCDM	MCDM	MCDM
Ursprungsår	2006	20th century	20th century
Upphovsperson	Davis and Goadrich	Historical statistical foundations	Historical statistical foundations
Typ	Evaluation metric	Evaluation metric	Evaluation metric
Ursprungskälla	Davis, J., & Goadrich, M. (2006). The relationship between precision-recall and ROC curves. Proceedings of the 23rd International Conference on Machine Learning, 233-240.	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.
Alias	PR AUC, PR Curve	Positive Predictive Value, PPV	Sensitivity, True Positive Rate, TPR
Närliggande	4	5	5
Sammanfattning	The Precision-Recall Area Under the Curve (PR AUC) is the area under the curve formed by plotting recall on the x-axis and precision on the y-axis. It is particularly useful for evaluating classifiers on imbalanced datasets, where it is often more informative than ROC AUC.	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.	Recall measures the proportion of actual positive cases that were correctly identified by the classifier. It answers the question: 'Of all the cases that were truly positive, how many did we find?' Recall is critical in scenarios where missing positive cases is costly.