Table 4.

Selected features from the proposed feature selection algorithm.

Vital signs and prediction window size		Statistical method of feature processing
Heart rate
	24 hours	Mean, median absolute delta, minimum absolute delta
	12 hours	Mean, minimum absolute delta, median absolute delta
	6 hours	Mean, entropy delta, entropy
Respiratory rate
	24 hours	Mean, median absolute delta, kurtosis absolute delta
	12 hours	Mean, entropy delta, minimum absolute delta
	6 hours	Mean, entropy absolute delta, entropy delta
Oxygen saturation
	24 hours	Mean, standard deviation delta, maximum absolute delta
	12 hours	Mean, maximum absolute delta, standard deviation delta
	6 hours	Mean, entropy delta, entropy absolute delta
Diastolic blood pressure
	24 hours	Mean, maximum absolute delta, maximum delta
	12 hours	Mean, kurtosis delta, kurtosis absolute delta
	6 hours	Mean, entropy delta, entropy absolute delta
Mean blood pressure
	24 hours	Mean, maximum absolute delta, maximum delta
	12 hours	Mean, maximum absolute delta, kurtosis delta
	6 hours	Mean, entropy delta, entropy absolute delta
Systolic blood pressure
	24 hours	Mean, maximum absolute delta, maximum delta
	12 hours	Mean, kurtosis delta, kurtosis absolute delta
	6 hours	Mean, entropy absolute delta, entropy delta
Body temperature
	24 hours	Mean, kurtosis delta, mean absolute delta
	12 hours	Mean, entropy delta, entropy absolute delta
	6 hours	Mean, entropy delta, entropy absolute delta