In MIMIC-IV, the models identify meaningful relationships: LR shows a negative trend, whereas EBM and XGB capture a U-shaped curve linking very small values to higher mortality.
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Toward generalizable and interpretable machine learning models in healthcare: Insights from ICU outcome predictions.
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Taken together, these consistent findings across all tasks highlight an important trend: as model complexity increases, so does the amount of local data needed for a purely local model to surpass one using additional external data.