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Table 3 Number of diverse trees.

From: Regression tree construction by bootstrap: Model search for DRG-systems applied to Austrian health-data

Tree Size

[-1

%, ∞]

[+1

%, ∞]

[+3

%, ∞]

2

3.4

(0,9)

0.1

(0,1)

0.1

(0,1)

3

14.1

(0,45)

4.8

(0,27)

1.3

(0,9)

4

23.3

(6,67)

7.4

(0,23)

3.9

(0,21)

5

30.3

(10,45)

12.4

(0,37)

7.1

(0,34)

6

39.8

(7,66)

10.4

(0,47)

4.3

(0,34)

8

42.9

(12,84)

2.5

(0,8)

0.0

(0,0)

10

60.1

(10,115)

9.0

(0,29)

0.1

(0,1)

12

63.4

(6,181)

12.1

(0,93)

0.0

(0,0)

14

76.1

(5,183)

13.1

(0,70)

8.8

(0,70)

16

82.5

(5,187)

16.6

(0,98)

1.9

(0,15)

  1. Number of diverse trees with an improvement in relative accuracy of [min%, max%] compared to the CART tree, displayed as mean(min, max) referring to the mean, minimum and maximum number of trees constructed on the 8 evaluated data-sets.
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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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