Tagged "scikit-learn"
Cross-validation explained: k-fold, stratified and grouped
Cross-validation gives a more reliable performance estimate than one split by rotating the validation fold. Learn k-fold, stratified, group and time-series variants.
Machine learning methodsIntermediate3 minTrain, validation and test sets explained
Why machine learning data is split three ways, what each split is for, how to split correctly with scikit-learn, and the mistakes that make a test score meaningless.
Machine learning methodsBeginner3 min