Vertaile menetelmiä

	F1-pisteet	Tarkkuus
Tieteenala	Mallien arviointi	Mallien arviointi
Menetelmäperhe	MCDM	MCDM
Syntyvuosi	1979	20th century
Kehittäjä	C. J. van Rijsbergen	Historical statistical foundations
Tyyppi	Evaluation metric	Evaluation metric
Alkuperäislähde	van Rijsbergen, C. J. (1979). Information Retrieval (2nd ed.). Butterworth-Heinemann.	Fawcett, T. (2006). An introduction to ROC analysis. Pattern Recognition Letters, 27(8), 861-874.
Rinnakkaisnimet	F-measure, Harmonic Mean	Positive Predictive Value, PPV
Liittyvät	5	5
Tiivistelmä	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.