Why is it wrong to use non-nested cross-validation?
64707
Use of nested cross-validation
98154
Why use group lasso instead of lasso?
18254
Is R-squared truly an invalid metric for non-linear models?
103820
Why is AUC higher for a classifier that is less accurate than for one that is more accurate?
137100
Validation: Data splitting into training vs. test datasets
6024
How to deal with hierarchical / nested data in machine learning
148673
Comparison of log-likelihood of two non-nested models
34923
How does leave-one-out cross-validation work? How to select the final model out of $n$ different models?
124109
K-fold vs. Monte Carlo cross-validation
2219
How do you deal with "nested" variables in a regression model?
115455
What is the correct way to use train, validation and test set when comparing classifiers?
29443
Cross Validation for mixed models?
98237
Is the machine learning community abusing "conditioned on" and "parametrized by"?
47473
Why is it bad practice to test for item names?
5304
Cross validation with test data set
61083
Why is Newton's method not widely used in machine learning?
11067
How to choose a predictive model after k-fold cross-validation?