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NLP Academy · Lesson

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

  1. Why Rare Classes Get Ignored
  2. Resampling and Class Weights
  3. Choosing Threshold and Metric
  4. End-to-End Imbalanced Pipeline
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