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Excellent point. This is called "data leakage". Analysis of this topic won the 2011 KDD best paper award: http://staging.m6d.com/wp-content/uploads/research_Lea
by jph00 14y ago
Excellent point. This is called "data leakage". Analysis of this topic won the 2011 KDD best paper award: http://staging.m6d.com/wp-content/uploads/research_Leakage-in-Data-Mining-Formulation-Detection-and-Avoidance.pdf http://staging.m6d.com/wp-content/uploads/research_Leakage-i...
- micro_cam 14y agoThanks. I don't suppose you can talk about how you (kaggle) eliminate leakage in practice? I would imagine something based on repeated application of random forest?