השוואת שיטות

	מקדם המתאם של מתיוז	דיוק מאוזן	דיוק (Precision)	עֶרְכָּה (רגישות)
תחום	הערכת מודלים	הערכת מודלים	הערכת מודלים	הערכת מודלים
משפחה	MCDM	MCDM	MCDM	MCDM
שנת המקור	1975	2010	20th century	20th century
הוגה השיטה	Brian W. Matthews	Brodersen, Ong, Stephan, and Buhmann	Historical statistical foundations	Historical statistical foundations
סוג	Evaluation metric	Evaluation metric	Evaluation metric	Evaluation metric
מקור מכונן	Matthews, B. W. (1975). Comparison of predicted and observed secondary structure of T4 phage lysozyme. Biochimica et Biophysica Acta (BBA)-Protein Structure, 405(2), 442-451.	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.	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.
כינויים	Phi Coefficient, Binary Classification Correlation	Average Recall, Equal-weight Average Sensitivity	Positive Predictive Value, PPV	Sensitivity, True Positive Rate, TPR
קשורות	5	5	5	5
תקציר	The Matthews Correlation Coefficient (MCC) is a correlation measure between predicted and actual binary classifications. It ranges from -1 to 1 and is considered one of the most reliable single-score metrics for evaluating binary classifiers, especially on imbalanced datasets.	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.	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.