Table 1 Statical description on data set of IS model.

From: Risk assessment of interstate pipelines using a fuzzy-clustering approach

No.

C

TPD

D

IO

IS

1

0

0

0

0

0

2

0

0

0

25

25

3

0

0

0

50

50

4

0

0

0

75

75

5

0

0

0

100

100

6

0

0

25

0

25

7

0

0

25

25

50

8

0

0

25

50

75

9

0

0

25

75

100

10

0

0

25

100

125

11

0

0

50

0

50

12

0

0

50

25

75

13

0

0

50

50

100

14

0

0

50

75

125

15

0

0

50

100

150

16

0

0

75

0

75

17

0

0

75

25

100

18

0

0

75

50

125

19

0

0

75

75

150

20

0

0

75

100

175

21

0

0

100

0

100

22

0

0

100

25

125

23

0

0

100

50

150

24

0

0

100

75

175

25

0

0

100

100

200

     

625

100

100

100

100

400