Slide 3
Slide 3 text
Data Preparation
40 features
8
vital signs
26
lab
results
6
dem
ographic
values
40,336
patients
sepsis
label
70% missing data
2932
sepsis
positive
patients
8 to 336 hourly
measurements
12,237 patients
28,099 patients
2064
sepsis
positive
patients
30% Holdout
For Testing
Impute Temporal
Data by Linear
Interpolation/
Extrapolation
Balance
Training Data by
Undersampling
Augment
Temporal Data
with Rates of
Change
Normalize and
Zero-Fill
34
tem
poral
variables
velocity
acceleration
Δ(X) Δ²(X)
Training Set: 199,686 observations × 108 features
Test Set: 469,332 observations × 108 features
19,669
sepsis
positive
labels