Compara mètodes

	F1 micro-mitjana	F1 ponderat
Camp	Avaluació de models	Avaluació de models
Família	MCDM	MCDM
Any d'origen	2000s	2000s
Autor original	Multi-class evaluation community	Multi-class evaluation community
Tipus	Evaluation metric	Evaluation metric
Font seminal	Powers, D. M. (2011). Evaluation: From Precision, Recall and F-Measure to ROC, Informedness, Markedness and Correlation. Journal of Machine Learning Technologies, 2(1), 37-63.	Powers, D. M. (2011). Evaluation: From Precision, Recall and F-Measure to ROC, Informedness, Markedness and Correlation. Journal of Machine Learning Technologies, 2(1), 37-63.
Àlies	Micro F1, Frequency-weighted average F1	Support-weighted F1
Relacionats	4	3
Resum	Micro-averaged F1 computes the F1-score by aggregating true positives, false positives, and false negatives across all classes, then calculating a single metric. It is equivalent to accuracy in multi-class classification and is useful when class distributions reflect their natural importance.	Weighted F1 computes the F1-score for each class and then takes a weighted average, where weights are proportional to the number of samples in each class (support). It provides a middle ground between macro and micro-averaging.