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Artificial Intelligence & Machine Learning
Q15 / 100
What is the F1 score?
Correct! Well done.
Incorrect.
The correct answer is B) The harmonic mean of precision and recall: 2*(P*R)/(P+R), balancing both metrics equally
B
Correct Answer
The harmonic mean of precision and recall: 2*(P*R)/(P+R), balancing both metrics equally
Explanation
F1 score is useful when classes are imbalanced and both false positives and false negatives matter. High F1 requires both high precision and high recall. F-β generalizes by weighting recall β times more than precision.
Progress
15/100