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Table 4 Misclassification rates based on random splitting

From: Supervised clustering of genes

Leukemia

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

6.58%

4.62%

4.21%

3.75%

3.33%

3.38%

3.25%

Aggregated trees

6.58%

6.12%

3.71%

3.54%

2.79%

2.71%

2.62%

Breast

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

1.00%

0.75%

0.75%

1.00%

0.83%

1.00%

1.00%

Aggregated trees

1.00%

1.58%

1.67%

2.33%

2.58%

2.42%

3.00%

Prostate

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

14.47%

11.68%

9.62%

7.97%

7.26%

6.94%

6.91%

Aggregated trees

14.47%

16.47%

10.32%

8.79%

8.12%

8.00%

7.79%

Colon

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

23.35%

20.35%

19.10%

16.95%

16.45%

16.05%

15.95%

Aggregated trees

23.35%

21.80%

19.70%

18.10%

16.95%

16.20%

16.45%

SRBCT

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

1.33%

0.48%

0.43%

0.48%

0.76%

0.95%

1.05%

Aggregated trees

5.76%

0.95%

0.71%

1.10%

1.76%

1.90%

2.14%

Lymphoma

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

2.15%

2.20%

1.50%

0.85%

0.65%

0.50%

0.50%

Aggregated trees

3.45%

2.45%

1.40%

0.80%

0.25%

0.20%

0.30%

Brain

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

31.21%

27.50%

26.36%

24.71%

23.86%

23.71%

23.36%

Aggregated trees

35.43%

28.43%

24.43%

22.14%

19.64%

18.29%

16.86%

NCI

q = 1

q = 2

q = 3

q = 5

q = 10

q = 15

q = 20

Nearest neighbor

45.25%

40.25%

37.90%

34.80%

32.10%

30.50%

29.65%

Aggregated trees

51.85%

42.35%

38.05%

34.05%

29.30%

27.75%

26.50%

  1. Misclassification rates for out-of-sample classification with q gene clusters as features, based on N = 100 random divisions into learning set (two thirds of the data) and test set (one third of the data).