Сравнение на методи

	Статистика J на Юден	Балансирана точност	Специфичност
Област	Оценка на модели	Оценка на модели	Оценка на модели
Семейство	MCDM	MCDM	MCDM
Година на възникване	1950	2010	20th century
Създател	W. J. Youden	Brodersen, Ong, Stephan, and Buhmann	Historical statistical foundations
Тип	Evaluation metric	Evaluation metric	Evaluation metric
Основополагащ източник	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.
Други названия	Youden Index, Sensitivity + Specificity - 1	Average Recall, Equal-weight Average Sensitivity	True Negative Rate, TNR
Свързани	3	5	5
Резюме	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.