Area Under Precision Recall Curve (AUPRC)

#machine-learning #interview #evaluation

AUPRC is same as AUC Score but for Precision Recall Curve (PRC).
It gives only one score which gives the area under the PRC curve
Greater the AUPRC score, better the model
AUPRC Score is calculated from Precision and Recall
- For different threshold, the Precision and Recall is plotted on the graph
- All the point will be connected by a line
- And the score is the Area Under the Curve of that line
Range: $[0, 1]$
If you need to find best threshold, then use Precision Recall Curve (PRC), ROC Curve

References