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Chapter 20 MindMap (Communicate Model Insights (Last chapter showed how to…
Chapter 20 MindMap
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20.1) Unlocking holdout
To check to make sure your data is good one of the first things you need to do is release the holdout data
if the top models’ holdout sample scores are substantially
lower than the cross-validation sample, then we have reason to be worried about our modeling process
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