F1 score
/ˌef ˈwʌn ˌskɔːr/
The harmonic mean of precision and recall
F1 score in a sentence
“The F1 score balances precision and recall into a single metric.”
Origin of F1 score
Named F1 as the first F-score or F-measure; F from F-measure, a weighted harmonic mean
Related Words
ROC curve
A graph showing classifier performance at various thresholds
AUC
Area Under the Curve, measuring overall model performance
confusion matrix
A table showing prediction results versus actual values
bias-variance tradeoff
The balance between underfitting and overfitting
regularization
Techniques to prevent overfitting by penalizing complexity
normalization
Scaling data to a standard range