An Introduction to the ROC-AUC in Classification Tasks

What does the curve mean?

Yong Cui
Towards Data Science
5 min readSep 16, 2020

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Photo by Francesco Ungaro on Unsplash

In machine learning, one essential learning objective is to classify data into groups. Although classification can include unsupervised learning (e.g., clustering), in most cases, our tasks involve known labels and thus we’re conducting supervised learning to classify our data. Your model will generate predicted labels, which…

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