Research Article

Informative Gene Selection and Direct Classification of Tumor Based on Chi-Square Test of Pairwise Gene Interactions

Table 4

Independent test accuracy and informative gene number used indifferent models (in parentheses) for multiclass gene-expression datasets.

ModelLeuk1Lung1Leuk2SRBCTBreastLung2DLBCLLeuk3CancersGCMAver ± std

HC-TSP*97.0671.88809566.6783.5883.3377.6874.3252.1778.17 ± 13.17
( ) ( ) ( ) (6) (8) (8) (10) (12) (20) (26) (10.2)

HC-K-TSP*97.0678.1310010066.6794.0383.3382.1482.4367.3985.12 ± 12.42
(36) (20) (24) (30) (24) (28) (46) (64) (128) (134) (53.4)

DT*85.2978.13807573.3388.0686.6775.8968.9252.1776.35 ± 10.49
( ) ( ) ( ) ( ) ( ) (5) (5) (16) (10) (18) (6.9)

PAM*97.0678.1393.339593.331009093.7587.8456.5288.5 ± 12.71
(44) (13) (62) (285) (4,822) (614) (3,949) (3,338) (2,008) (1,253) (1,638.8)

mRMR-SVM76.47 78.13 100.00 75.00 96.67 95.52 96.67 91.96 71.62 45.65 82.77 ± 16.85
(7) (13) (19) (9) (97) (120) (16) (119) (89) (57) (54.6)

SVM-RFE-SVM85.29 78.13 93.33 95.00 90.00 88.06 90.00 91.07 93.24 63.04 86.72 ± 9.62
(5) (9) (8) ( ) (7) (9) (13) (35) (29) (199) (31.7)

TSG97.0681.2510010086.6795.5293.3391.0779.7367.3989.20 ± 10.5
(6) (20) (44) (13) (63) (60) (16) (95) (81) (112) (51)

-IRG-DC97.0684.381001009097.0193.3393.7585.1467.3990.81 ± 9.91
(29) (23) (20) (23) (31) (52) (37) (46) (47) (64) (37.2)

Results reported in [28].