End-to-End Imbalanced Pipeline
Put the fixes together cleanly.
Put It All Together
Now you will chain every fix into one clean flow. A single pipeline keeps vectorizing, resampling, and modeling in order.
Split First, Always
Begin with a stratified split so train and test keep the same rare-class ratio. This protects honest evaluation.
X_tr, X_te, y_tr, y_te = train_test_split(X, y, stratify=y)All lessons in this course
- Why Rare Classes Get Ignored
- Resampling and Class Weights
- Choosing Threshold and Metric
- End-to-End Imbalanced Pipeline