Data Science & ML
Intermediate

Recall (Sensitivity)

Of all actual positives, the fraction correctly identified.

Formula

Recall=TPTP+FNRecall = \frac{TP}{TP + FN}

Variables

TPTrue positives
FNFalse negatives

Example

TP=80, FN=20: Recall = 0.80

Did You Know?

Recall matters when false negatives are costly (e.g., disease screening).

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