Power Curve

Definition

The Power Curve (also: Receiver Operating Characteristic) is a Visualization and quantification of model classification performance. The plot is simply a joint graph of correct classifications against incorrect classifications as a function of the classifier parameter (e.g., credit score).

Usage

The power curve provides a simple and comprehensive overview of overall model performance. It is easy to inspect whether there is significant success at classification (the curve slopes upward), but also to immediately get a sense of data quality.

See Also

• Accuracy Ratio and related measures that aim to summarize the power curve.

Implementation

• Scikit Manual

External Links

• Wikipedia Page

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