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Recall is the fraction of the relevant documents that are successfully retrieved. \begin{aligned}{\text{Recall}}&={\frac {tp}{tp+fn}}\,\end{aligned} Labels for a Class is equal to total examples which are actually belonging to the class: P = FN + TP Hence (FN + TP)* Recall = TP Precision is the fraction of retrieved documents that are relevant to the ...

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