Table 5 Optimal set of features at different budget levels for predicting composite ventilation.

From: Budget constrained machine learning for early prediction of adverse outcomes for COVID-19 patients

Budget

Total cost

Optimal set of features

AP mean (std)

1

1

DCM, BMP

0.289 (0.016)

2

2

DCM, CRP

0.314 (0.071)

3

3

DCM, BMP, LDH

0.331 (0.034)

4

4

DCM, BMP, CBC, CRP

0.353 (0.045)

5

4

DCM, BMP, CBC, CRP

0.353 (0.045)

6

4

DCM, BMP, CBC, CRP

0.353 (0.045)

7

7

DCM, BMP, CBC, D-dimer, Procalcitonin

0.363 (0.051)

8

7

DCM, BMP, CBC, D-dimer, Procalcitonin

0.363 (0.051)

9

7

DCM, BMP, CBC, D-dimer, Procalcitonin

0.363 (0.051)

10

10

DCM, BMP, CBC, CRP, BNP, Troponin

0.371 (0.03)

11

10

DCM, BMP, CBC, CRP, BNP, Troponin

0.371 (0.03)

12

10

DCM, BMP, CBC, CRP, BNP, Troponin

0.371 (0.03)

13

10

DCM, BMP, CBC, CRP, BNP, Troponin

0.371 (0.03)

14

10

DCM, BMP, CBC, CRP, BNP, Troponin

0.371 (0.03)

15

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

16

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

17

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

18

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

19

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

20

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

21

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

22

15

DCM, BMP, D-dimer, LDH, Sedrate, CRP, BNP, Procalcitonin

0.382 (0.047)

  1. Total cost is the sum of the cost of each feature group in the selected set.