[scikit-learn] GradientBoostingRegressor with training, validation, and test set.

Olivier Grisel olivier.grisel at ensta.org
Fri Jul 8 07:49:49 EDT 2016

GridSearchCV will automatically generate the validation sets
internally (this is where the "CV" comes from). So you don't have to
generate a validation set if you decide to use GridSearchCV to select
the best model.

More details here:



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