Table 2 Average percentage of features (and their corresponding standard deviation) used by SVM with different parameters on four microarray data sets (%)
From: Selecting subsets of newly extracted features from PCA and PLS in microarray data analysis
DATASET | PCASVM | GAPCASVM | PLSSVM | GAPLSSVM | PPSVM | GAPPSVM |
|---|---|---|---|---|---|---|
C = 10, σ = 0.01 for SVM | ||||||
CNS | 74.4(8.5) | 27.3(8.3) | 67.7(10.0) | 29.4(8.4) | 68.8(6.6) | 30.8(8.6) |
COLON | 81.1(7.5) | 28.5(8.9) | 57.6(4.8) | 30.8(7.4) | 59.4(9.2) | 31.1(7.4) |
LEUKEMIA | 78.0(9.8) | 26.7(6.3) | 46.8(10.1) | 30.0(6.5) | 52.0(9.3) | 30.3(6.6) |
LUNG | 82.2(6.2) | 74.7(6.2) | 73.8(7.9) | 72.0(3.6) | 82.3(7.6) | 73.3(5.7) |
Average | 78.9(8.0) | 39.3(7.4) | 61.4(8.2) | 40.5(6.5) | 65.6(8.2) | 41.3(7.1) |
C = 10, σ = 10 for SVM | ||||||
CNS | 73.4(9.8) | 27.4(8.0) | 62.7(9.0) | 29.6(8.5) | 65.7(9.3) | 20.7(8.3) |
COLON | 82.1(6.5) | 28.7(8.9) | 57.6(4.8) | 30.6(7.3) | 59.3(8.3) | 31.1(7.5) |
LEUKEMIA | 87.0(9.1) | 26.7(6.1) | 46.8(10.0) | 30.0(6.3) | 49.3(8.3) | 30.4(6.7) |
LUNG | 77.4(7.0) | 74.4(6.7) | 76.3(6.9) | 73.1(3.0) | 83.1(8.1) | 72.0(6.3) |
Average | 79.4(8.1) | 39.3(7.4) | 60.8(7.7) | 40.8(6.3) | 64.4(8.5) | 38.5(7.2) |
C = 1000, σ = 0.01 for SVM | ||||||
CNS | 78.1(8.0) | 27.4(8.2) | 64.3(9.0) | 29.3(8.3) | 70.1(9.1) | 30.6(8.3) |
COLON | 80.9(7.4) | 28.1(8.6) | 57.6(5.2) | 30.7(7.3) | 62.2(8.2) | 31.0(7.5) |
LEUKEMIA | 87.1(9.7) | 27.0(6.7) | 47.6(10.0) | 30.4(7.3) | 49.2(8.3) | 30.4(6.8) |
LUNG | 79.0(6.6) | 76.8(6.3) | 77.2(7.1) | 67.4(4.3) | 84.4(7.9) | 81.4(6.6) |
Average | 81.3(7.9) | 39.8(7.4) | 61.6(7.8) | 39.4(6.8) | 66.4(8.4) | 43.3(7.3) |
C = 1000, σ = 10 for SVM | ||||||
CNS | 76.2(8.9) | 27.4(8.4) | 67.1(8.9) | 29.2(7.7) | 69.4(9.1) | 30.6(8.3) |
COLON | 82.5(7.2) | 28.0(8.7) | 59.5(4.6) | 30.7(7.3) | 63.3(8.7) | 32.2(7.4) |
LEUKEMIA | 88.2(9.7) | 27.3(6.7) | 47.6(8.1) | 30.3(7.3) | 49.2(7.9) | 30.4(6.8) |
LUNG | 81.1(6.8) | 78.2(6.1) | 81.3(5.1) | 77.6(8.2) | 81.1(8.0) | 76.4(5.9) |
Average | 82.0(8.1) | 40.2(7.0) | 63.8(6.7) | 41.9(7.6) | 65.7(8.4) | 42.4(7.1) |