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| F-beta-mått× | Precision× | |
|---|---|---|
| Ämnesområde | Modellutvärdering | Modellutvärdering |
| Familj | MCDM | MCDM |
| Ursprungsår≠ | 1979 | 20th century |
| Upphovsperson≠ | C. J. van Rijsbergen | Historical statistical foundations |
| Typ | Evaluation metric | Evaluation metric |
| Ursprungskälla≠ | 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 ↗ |
| Alias≠ | F-measure with parameter beta | Positive Predictive Value, PPV |
| Närliggande | 5 | 5 |
| Sammanfattning≠ | 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. |
| ScholarGateDatamängd ↗ |
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