Examples

1. 1.

   For example, the positive class in a cancer model might be "tumor." The positive class in an email classification model might be "spam."

2. 2.

   Contrast with negative class.

3. 3.

   Click the icon for additional notes.

Real-world uses

Created for this library

1. 1.

   A fraud team labels fraudulent transactions as the positive class because the model's task is to identify the rare positive cases.

2. 2.

   A medical screening team labels diseased patients as the positive class and tracks recall on the positive class for clinical reviewers.

3. 3.

   A churn team labels canceled subscriptions as the positive class so model thresholds map directly to outreach decisions.