Vocabulary

Understand the term. Connect the concept.

A practical dictionary of 512 AI, machine learning, mathematics, and programming terms from HerbDev’s AI Vocabulary app. Start with a definition, explore an example, then follow the concepts behind it.

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AUC

Model Evaluation · Level 2 of 5

AUC (AUC)

Area under a specified evaluation curve.

The curve must be named; ROC AUC and precision-recall AUC answer different questions.

Example

A report explicitly gives the area under its ROC curve.

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Audio transcript

AUC. Area under a specified evaluation curve. The curve must be named; ROC AUC and precision-recall AUC answer different questions. For example: A report explicitly gives the area under its ROC curve.

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Why it matters

This helps you ask what a reported score counts and which errors it can hide.

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ROC Curve

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