Table 2

Summary of the effect of different α values on the performance of BDeu

α = 0.1

α = 0.5

α = 1


GoldNet

Min

Mean

Max

STD

Min

Mean

Max

STD

Min

Mean

Max

STD


Austra

0

2.44

14

4.38

0

2.11

14

4.32

0

1.94*

14

4.02

Breast

0

0.83

8

2.18

0

0.61

5

1.50

0

0.61

5

1.50

Car

0

1.44

5

2.28

0

0.89

5

1.91

0

0.89

5

1.91

Cleve

1

1.83

11

2.43

1

1.50

7

1.54

1

1.44*

7

1.46

Crx

3

5.72*

18

4.56

3

6.06

19

5.46

3

5.72

18

4.91

Diabetes

1

1.72

6

1.71

1

1.22*

4

0.73

1

1.28

4

0.75

Glass

1

1.83

7

2.01

1

1.00*

1

0.00

1

1.00*

1

0.00

Heart

0

0.00*

0

0.00

0

0.00

0

0.00

0

0.00

0

0.00

Hepatitis

3

3.72*

13

2.37

3

4.22

12

2.62

6

7.06

13

2.01

Iris

1

1.83

7

1.72

1

1.44

6

1.34

1

1.33*

4

0.97

Nursery

1

4.94

8

2.75

0

4.39

8

2.77

0

4.06

8

2.92

Vehicle

0

0.67

9

2.14

0

0.22

4

0.94

0

0.22*

4

0.94

Voting

0

1.61

23

5.38

0

1.39

22

5.17

0

1.28*

19

4.47


α = 5

α = 10

α = 20


GoldNet

Min

Mean

Max

STD

Min

Mean

Max

STD

Min

Mean

Max

STD


Austra

0

3.61

18

5.81

1

13.94

21

3.81

14

15.39

25

3.11

Breast

0

0.22*

4

0.94

0

0.56

10

2.36

0

1.33

11

2.93

Car

0

0.28*

5

1.18

0

0.28

5

1.18

0

0.33

5

1.19

Cleve

4

6.61

13

2.85

9

12.56

19

2.18

20

21.56

25

1.10

Crx

5

13.72

21

5.49

13

16.83

20

1.86

18

20.17

29

2.90

Diabetes

3

3.22

6

0.73

5

5.33

10

1.19

9

9.11

11

0.47

Glass

7

7.89

8

0.32

12

14.67

15

0.84

18

19.83

20

0.51

Heart

1

1.00

1

0.00

1

1.44

2

0.51

2

2.22

4

0.55

Hepatitis

25

30.22

33

1.99

39

41.78

44

1.31

50

53.56

60

2.25

Iris

3

3.22

5

0.55

5

5.22

8

0.73

9

9.61

14

1.38

Nursery

0

3.17

8

2.64

0

2.50

8

2.48

0

2.39*

9

2.57

Vehicle

0

0.44

5

1.20

1

2.39

10

2.03

5

6.72

15

2.47

Voting

0

1.61

22

5.14

0

3.89

30

7.06

0

7.06

38

9.05


α = 50

α = 80

α = 100


GoldNet

Min

Mean

Max

STD

Min

Mean

Max

STD

Min

Mean

Max

STD


Austra

16

19.67

33

4.35

18

22.50

42

5.99

19

24.17

42

5.86

Breast

2

7.44

14

3.35

7

11.67

16

3.36

7

13.72

20

3.72

Car

0

0.67

8

1.88

0

1.50

8

1.76

0

1.94

8

1.66

Cleve

26

27.50

34

1.95

27

29.72

41

3.27

28

30.50

42

3.49

Crx

19

25.39

37

4.41

24

29.28

40

4.08

27

31.78

44

4.35

Diabetes

13

14.89

16

1.13

14

16.33

18

1.37

14

15.67

18

1.50

Glass

18

18.11

20

0.47

18

21.61

26

2.06

20

24.44

26

2.04

Heart

4

4.11

5

0.32

4

4.61

5

0.50

4

4.94

5

0.24

Hepatitis

59

61.50

72

3.03

61

64.28

75

3.92

61

65.28

78

4.86

Iris

13

15.06

18

1.35

14

16.78

18

1.11

14

15.83

18

1.47

Nursery

0

2.11

11

2.78

0

2.33

10

2.81

0

2.61

11

3.13

Vehicle

14

18.44

30

3.88

19

23.50

36

4.08

22

27.44

39

4.15

Voting

6

22.28

43

9.78

16

30.00

52

8.60

23

34.50

56

8.21


This table shows SHD statistics about the networks learned using the sampled datasets for the BDeu scoring function for all of the α values that we analyzed. GoldNet gives the name of the network. We have used abbreviated names from Table 1, but the order of the datasets is the same in both tables. Min, Mean, Max and STD give the particular statistic for SHD for all sample sizes for the given network and α value. The α value with the lowest mean for each dataset is shown in bold and marked with "*".

Liu et al. BMC Bioinformatics 2012 13(Suppl 15):S14   doi:10.1186/1471-2105-13-S15-S14

Open Data