Сравнение на методи

	F1-резултат	Специфичност
Област	Оценка на модели	Оценка на модели
Семейство	MCDM	MCDM
Година на възникване	1979	20th century
Създател	C. J. van Rijsbergen	Historical statistical foundations
Тип	Evaluation metric	Evaluation metric
Основополагащ източник	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.
Други названия	F-measure, Harmonic Mean	True Negative Rate, TNR
Свързани	5	5
Резюме	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.	Specificity measures the proportion of actual negative cases that were correctly identified as negative by the classifier. It answers the question: 'Of all the cases that were truly negative, how many did we correctly reject?' Specificity is complementary to recall and is essential when false positives are costly.