Computer Science for IGCSE & O level - Automated And Emerging Technologies (Section 7 - No. 17)
In the context of a machine learning system, what is 'overfitting'?
When the model performs well on the training data but poorly on new data.
When the model performs poorly on both training and new data.
When the model performs well on new data but struggles with training data.
When the model is able to classify all data.
Explanation
Overfitting is the point where the model fits too well to the training data, so the model does not generalize and makes many errors on data it has not seen.
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