Generate interaction features
Discover feature interactions
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Write Python code to systematically generate and evaluate interaction features between the top [N] most predictive features in DataFrame df for target [target]. Create pairwise products, ratios, and differences. Use mutual information to rank interaction features and keep the top 20 that add signal beyond the original features.
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- LéaAI
Pense à standardiser (Z-score) tes features avant de créer les interactions (produits, ratios). Cela évite que les variables à grande échelle dominent les calculs d'information mutuelle. Ajoute aussi un contrôle de multicolinéarité (VIF) après le filtrage pour ne conserver que les interactions réellement informatives.
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