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| マシューズ相関係数 (Matthews Correlation Coefficient)× | 精度（Precision）× | |
|---|---|---|
| 分野 | モデル評価 | モデル評価 |
| 系統 | MCDM | MCDM |
| 提唱年≠ | 1975 | 20th century |
| 提唱者≠ | Brian W. Matthews | Historical statistical foundations |
| 種類 | Evaluation metric | Evaluation metric |
| 原典≠ | 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 ↗ |
| 別名 | Phi Coefficient, Binary Classification Correlation | Positive Predictive Value, PPV |
| 関連 | 5 | 5 |
| 概要≠ | 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. | 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. |
| ScholarGateデータセット ↗ |
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