ezoic

Tuesday, July 9, 2019

underfitting and overfitting , n and p

Overfitting refers to a model that models the training data too well.

Underfitting refers to a model that can neither model the training data nor generalize to new data.

We have p parameters and n sample.
over fitting results from trying to estimate too many parameters from too small a sample, when p>n

if we remove one feature, we will decrease the degree of overfitting .

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