Table 4 Modification of the random state to conduct an ablation study, where the sign () and (✘) refer to the identical and dropped accuracy, respectively.

From: BOO-ST and CBCEC: two novel hybrid machine learning methods aim to reduce the mortality of heart failure patients

Case study

Random state

ALL features

FI features

IG features

Acceptability

2

5

88.9

92.5

90.12

10

89.74

93.67

92.40

15

88.75

92.59

88.75

20

88.9

91.25

90

25

88.75

92.5

91.25

30

90

91.25

92.59

35

88.75

91.25

90

40

89.74

90

89.74