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Variable (radiomic metric) of importance is plotted along the y-axis for the Adaboost model across the three outcome predictions i.e., need for ICU, need of intubation and death, respectively based on ranking of radiomic metrics within a rigorous LOO cross-validation procedure. ‘Frequency’ defined as the number of times each variable made to the top 10 variable of importance list during 10-fold cross-validation is plotted along the x-axis.
