How to calculate area under ROC (AUROC) and area under precision-recall curve (AUPRC) for mutli-class classification?

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Saeid
Saeid on 30 Sep 2014
Edited: Saeid on 30 Sep 2014
Hi,
Would you please help me how to calculate area under ROC (AUROC) and area under precision-recall curve (AUPRC) for mutli-class classification? Any reliable source for their formulas?

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