|
Levela
|
ReduceSVb
|
P(sv-diff)c
|
ReduceTestd
|
P(test-diff)e
|
ImproveRecf
|
P(rec-diff)g
|
|---|
|
800
|
4.01%
|
1.81E-42
|
-7.70%
|
4.72E-03
|
-3.90%
|
1.71E-39
|
|
600
|
5.77%
|
1.74E-49
|
-2.50%
|
4.64E-01
|
-1.70%
|
5.21E-15
|
|
500
|
6.83%
|
2.75E-51
|
-4.00%
|
1.62E-01
|
-0.30%
|
0.079189
|
|
400
|
8.35%
|
3. 26E-60
|
2.80%
|
3.48E-01
|
1.10%
|
4.48E-06
|
|
300
|
9.33%
|
3.83E-58
|
7.40%
|
3.65E-02
|
3.70%
|
1.77E-31
|
|
200
|
8.22%
|
1.28E-48
|
19.20%
|
6.36E-09
|
6.30%
|
5.79E-44
|
|
150
|
8.55%
|
1.51E-53
|
19.50%
|
1.16E-08
|
7.10%
|
9.76E-46
|
|
100
|
4.97%
|
6.20E-22
|
11.90%
|
1.83E-04
|
6.00%
|
6.43E-40
|
|
90
|
5.84%
|
1.66E-27
|
13.70%
|
4.20E-06
|
4.60%
|
1.07E-30
|
|
80
|
5.17%
|
8.20E-29
|
12.40%
|
4.14E-06
|
4.50%
|
7.12E-29
|
|
70
|
4.14%
|
1.46E-27
|
8.50%
|
4.77E-04
|
3.80%
|
1.05E-24
|
|
60
|
3.10%
|
1.23E-20
|
10.20%
|
3.14E-05
|
3.40%
|
4.99E-24
|
|
50
|
2.27%
|
2.01E-15
|
10.20%
|
4.11E-06
|
2.90%
|
2.37E-21
|
- a Level: The number of features selected in each recursive step. With all of the 1000 features, there is no difference between R-SVM and SVM-RFE because no feature selection happened.
- b ReduceSV: Relative reduction in the mean number of support vectors used by R-SVM comparing to that by SVM-RFE, calculated as: (average #SVSVM-RFE - average #SVR-SVM)/(average #svSVM-RFE).
- c P(sv-diff): The p-value of the observed difference in numbers of SVs, by paired t-test.
- d ReduceTest: Relative reduction in the mean test error rates of SVM models with R-SVM-selected features comparing to that with SVM-RFE selected features, calculated as: (average TestErrorSVM-RFE - average TestErrorR-SVM)/(average TestErrorSVM-RFE).
- e P(test-diff): The p-value of the observed difference in test error rates, by paired t-test.
- f ImproveRec: Relative improvement in the proportion of recovered informative genes by R-SVM than that by SVM-RFE, calculated as: (average #RECR-SVM - average #RECSVM-RFE)/(average #RECSVM-RFE), where #REC is the number of recovered true informative genes with the method stated in the subscript.
- g P(rec-diff): The p-value of the observed difference in proportion of recovered true informative genes, by paired t-test.
