A short introduction to Cost-Sensitive Learning

Santiago Valdarrama
4 min readMay 28, 2021

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The best picture I could find related to “mechanical components” in a factory.

Think of a factory.

Now imagine a machine learning model that looks at a picture of a mechanical component and predicts whether it’s about to break.

Don’t worry about how the model does this. Let’s focus on the results instead.

Imagine we run 100 pictures through the model, and we get the following results:

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Santiago Valdarrama

I build machine learning systems until 5 pm. Then I come here and tell you stories about them.