Tag
grouped-splits
- Sep 26, 2025 Group and Duplicate Leakage in Cross-Validation Splits Why row-level splitting fails when rows are not independent, how grouped and blocked folds restore the estimate, and what the fold count costs in group imbalance. machine learning
- May 12, 2022 Grouped Splits When Observations Are Not Independent How shared subjects across rows inflate a random split, what group-aware partitioning guarantees, and how to choose the grouping key when several exist. machine learning