Drift and model fit · Question 29 of 60

How is overfitting tested for?

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Answer

  • B Performance is evaluated on a separate test dataset not used in training, including rare examples

Explanation

To detect overfitting, you test on separate test data that the model has never seen and that also contains unusual cases. If it performs markedly worse there than on the validation data, it has probably memorized rather than generalized.

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