Skip to main content

Advertisement

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)