قارن الطرق

	إحصائية يودن J	الدقة المتوازنة	النوعية
المجال	تقييم النماذج	تقييم النماذج	تقييم النماذج
العائلة	MCDM	MCDM	MCDM
سنة النشأة	1950	2010	20th century
صاحب الطريقة	W. J. Youden	Brodersen, Ong, Stephan, and Buhmann	Historical statistical foundations
النوع	Evaluation metric	Evaluation metric	Evaluation metric
المصدر التأسيسي	Youden, W. J. (1950). Index for rating diagnostic tests. Cancer, 3(1), 32-35.	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.
الأسماء البديلة	Youden Index, Sensitivity + Specificity - 1	Average Recall, Equal-weight Average Sensitivity	True Negative Rate, TNR
ذات صلة	3	5	5
الملخص	Youdens J statistic, also called the Youden index, measures the maximum difference between the true positive rate and false positive rate across different classification thresholds. It is useful for selecting optimal cutoff points in diagnostic testing.	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.	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.