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| F-betaスコア× | 精度（Precision）× | |
|---|---|---|
| 分野 | モデル評価 | モデル評価 |
| 系統 | MCDM | MCDM |
| 提唱年≠ | 1979 | 20th century |
| 提唱者≠ | C. J. van Rijsbergen | Historical statistical foundations |
| 種類 | Evaluation metric | Evaluation metric |
| 原典≠ | 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 ↗ |
| 別名≠ | F-measure with parameter beta | Positive Predictive Value, PPV |
| 関連 | 5 | 5 |
| 概要≠ | The F-beta score is a weighted harmonic mean of precision and recall that allows customizing the relative importance of recall versus precision through a parameter beta. It generalizes the F1-score, which is the special case where beta = 1. | 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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