Cross-Validation
Complete guide to K-Fold cross-validation, LOOCV, and stratified CV with worked examples and interpretations for CT exam
6 docs tagged with "Cross-Validation"
K-fold, LOOCV, and general cross-validation.
View all tagsCross-Validation Methods
Comparing Leave-One-Out (LOO-CV), Leave-P-Out (LPO-CV), and K-Fold Cross-Validation, their statistical mechanics, and computational tradeoffs.
Data Leakage and Best Practices
Preventing data leakage with scikit-learn Pipelines, unbiased hyperparameter tuning with Nested Cross-Validation, and specialized splitting strategies.
K-Fold and Stratified K-Fold
Guidelines for choosing K, resolving class imbalance with Stratified K-Fold, and analyzing the complete cross-validation pipeline.
Module 2 Practice Problems
40 practice problems covering cross-validation, logistic regression, classification metrics, model comparison, and decision boundaries
Why Cross-Validation
The train-test split lottery, understanding why multiple splits estimate generalization reliably, and the sealed test set protocol.