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| Σταθμισμένη Ακρίβεια× | Βαθμολογία F1× | Ακρίβεια (Precision)× | Ανάκληση (Ευαισθησία)× | |
|---|---|---|---|---|
| Πεδίο | Αξιολόγηση Μοντέλων | Αξιολόγηση Μοντέλων | Αξιολόγηση Μοντέλων | Αξιολόγηση Μοντέλων |
| Οικογένεια | MCDM | MCDM | MCDM | MCDM |
| Έτος προέλευσης≠ | 2010 | 1979 | 20th century | 20th century |
| Δημιουργός≠ | Brodersen, Ong, Stephan, and Buhmann | C. J. van Rijsbergen | Historical statistical foundations | Historical statistical foundations |
| Τύπος | Evaluation metric | Evaluation metric | Evaluation metric | Evaluation metric |
| Θεμελιώδης πηγή≠ | 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. DOI ↗ | van Rijsbergen, C. J. (1979). Information Retrieval (2nd ed.). Butterworth-Heinemann. link ↗ | Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874. DOI ↗ | Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874. DOI ↗ |
| Εναλλακτικές ονομασίες≠ | Average Recall, Equal-weight Average Sensitivity | F-measure, Harmonic Mean | Positive Predictive Value, PPV | Sensitivity, True Positive Rate, TPR |
| Συναφείς | 5 | 5 | 5 | 5 |
| Σύνοψη≠ | 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. | 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. | 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. |
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