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| Độ chính xác (Precision)× | Độ chính xác× | Điểm F1× | Hệ số Tương quan Matthews× | Độ thu hồi (độ nhạy)× | |
|---|---|---|---|---|---|
| Lĩnh vực | Đánh giá mô hình | Đánh giá mô hình | Đánh giá mô hình | Đánh giá mô hình | Đánh giá mô hình |
| Họ | MCDM | MCDM | MCDM | MCDM | MCDM |
| Năm ra đời≠ | 20th century | 20th century | 1979 | 1975 | 20th century |
| Người khởi xướng≠ | Historical statistical foundations | Historical statistical foundations | C. J. van Rijsbergen | Brian W. Matthews | Historical statistical foundations |
| Loại | Evaluation metric | Evaluation metric | Evaluation metric | Evaluation metric | Evaluation metric |
| Công trình gốc≠ | 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 ↗ | van Rijsbergen, C. J. (1979). Information Retrieval (2nd ed.). Butterworth-Heinemann. link ↗ | 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. DOI ↗ | Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874. DOI ↗ |
| Tên gọi khác≠ | Positive Predictive Value, PPV | Overall Accuracy, Correct Classification Rate | F-measure, Harmonic Mean | Phi Coefficient, Binary Classification Correlation | Sensitivity, True Positive Rate, TPR |
| Liên quan | 5 | 5 | 5 | 5 | 5 |
| Tóm tắt≠ | 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. | Accuracy is the proportion of correct predictions among the total number of predictions made by a classification model. It is the most intuitive performance metric and measures how often the classifier makes correct predictions overall, regardless of class. | 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. | 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. | 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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