A resolution_hours field is filled only after a defect is closed, but it sits in the training table used to predict whether a defect will occur. What should the team do with that column?
Select an answer to reveal the explanation.
Short Explanation
Think of resolution_hours filled only after a defect is closed, sitting in a table that predicts whether a defect will occur. Drop it. A post-outcome field is leakage, not a feature.
Full Explanation
Target or data leakage happens when a post-outcome field pretends to be a predictor. Resolution hours filled only after close must not be a feature. Encoding it or using Firehose does not remove the leak.