Tag
temporal-leakage
- May 30, 2023 Point-in-Time Feature Assembly and the As-Of Join How to compute a feature as it stood at a labelled event, why an as-of join is not a filtered join, and where late-arriving records break the reconstruction. machine learning
- Jan 5, 2023 Blocked and Rolling-Origin Validation for Time-Ordered Data Why random folds fail on time series, how expanding and sliding origins differ in what they measure, and where the gap between folds must be inserted. machine learning