手法を比較

	適合率-再現率AUC	F1スコア
分野	モデル評価	モデル評価
系統	MCDM	MCDM
提唱年	2006	1979
提唱者	Davis and Goadrich	C. J. van Rijsbergen
種類	Evaluation metric	Evaluation metric
原典	Davis, J., & Goadrich, M. (2006). The relationship between precision-recall and ROC curves. Proceedings of the 23rd International Conference on Machine Learning, 233-240.	van Rijsbergen, C. J. (1979). Information Retrieval (2nd ed.). Butterworth-Heinemann.
別名	PR AUC, PR Curve	F-measure, Harmonic Mean
関連	4	5
概要	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.	The F1-score is the harmonic mean of precision and recall, providing a single metric that balances both concerns. It was introduced by van Rijsbergen in information retrieval and has become a standard metric for evaluating classification models where both precision and recall are important.