Micro Recall
Per class the false positives and false negatives look nothing alike. Their totals are identical, and that is the whole mechanism.
Per class the false positives and false negatives look nothing alike. Their totals are identical, and that is the whole mechanism.
Two models can post identical accuracy with opposite error profiles. What the number hides, and what to report beside it.
Sensitivity measures detection among actual positives, while specificity measures passes among actual negatives. A rare-failure example shows why accuracy and precision answer different questions.