Mortality prediction in ICU: a methodological advance

John Norrie

Research output: Contribution to journalComment/debatepeer-review

8 Citations (Scopus)


In The Lancet Respiratory Medicine, Pirracchio and colleagues present a new approach to predicting mortality in intensive care units (ICUs). The investigators propose that instead of picking one of the many mortality prediction models available, an ensemble machine learning approach can be used (the non-parametric Super Learner) to leverage the individual candidate models from a pre-specified library, to produce an optimum prediction algorithm. This is an elegant idea that frees the user from making an arbitrary choice of model, and that also guarantees at least as good performance as any individual model within that library.
Original languageEnglish
Pages (from-to)5-6
Number of pages2
JournalThe Lancet. Respiratory medicine
Issue number1
Early online date24 Nov 2014
Publication statusPublished - Jan 2015


  • Mortality prediction
  • ICU


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