From: Gene selection and classification of microarray data using random forest
Data set | Error | # Genes | # Genes boot. | Freq. genes |
---|---|---|---|---|
Backwards elimination of genes from random forest | ||||
s.e. = 0 | ||||
Leukemia | 0.087 | 2 | 2 (2, 2) | 0.38 (0.29, 0.48)1 |
Breast 2 cl. | 0.337 | 14 | 9 (5, 23) | 0.15 (0.1, 0.28) |
Breast 3 cl. | 0.346 | 110 | 14 (9, 31) | 0.08 (0.04, 0.13) |
NCI 60 | 0.327 | 230 | 60 (30, 94) | 0.1 (0.06, 0.19) |
Adenocar. | 0.185 | 6 | 3 (2, 8) | 0.14 (0.12, 0.15) |
Brain | 0.216 | 22 | 14 (7, 22) | 0.18 (0.09, 0.25) |
Colon | 0.159 | 14 | 5 (3, 12) | 0.29 (0.19, 0.42) |
Lymphoma | 0.047 | 73 | 14 (4, 58) | 0.26 (0.18, 0.38) |
Prostate | 0.061 | 18 | 5 (3, 14) | 0.22 (0.17, 0.43) |
Srbct | 0.039 | 101 | 18 (11, 27) | 0.1 (0.04, 0.29) |
s.e. = 1 | ||||
Leukemia | 0.075 | 2 | 2 (2, 2) | 0.4 (0.32, 0.5)1 |
Breast 2 cl. | 0.332 | 14 | 4 (2, 7) | 0.12 (0.07, 0.17) |
Breast 3 cl. | 0.364 | 6 | 7 (4, 14) | 0.27 (0.22, 0.31) |
NCI 60 | 0.353 | 24 | 30 (19, 60) | 0.26 (0.17, 0.38) |
Adenocar. | 0.207 | 8 | 3 (2, 5) | 0.06 (0.03, 0.12) |
Brain | 0.216 | 9 | 14 (7, 22) | 0.26 (0.14, 0.46) |
Colon | 0.177 | 3 | 3 (2, 6) | 0.36 (0.32, 0.36) |
Lymphoma | 0.042 | 58 | 12 (5, 73) | 0.32 (0.24, 0.42) |
Prostate | 0.064 | 2 | 3 (2, 5) | 0.9 (0.82, 0.99)1 |
Srbct | 0.038 | 22 | 18 (11, 34) | 0.57 (0.4, 0.88) |
Alternative approaches | ||||
SC.s | ||||
Leukemia | 0.062 | 822 | 46 (14, 504) | 0.48 (0.45, 0.59) |
Breast 2 cl. | 0.326 | 31 | 55 (24, 296) | 0.54 (0.51, 0.66) |
Breast 3 cl. | 0.401 | 2166 | 4341 (2379, 4804) | 0.84 (0.78, 0.88) |
NCI 60 | 0.246 | 51183 | 4919 (3711, 5243) | 0.84 (0.74, 0.92) |
Adenocar. | 0.179 | 0 | 9 (0, 18) | NA (NA, NA) |
Brain | 0.159 | 4177 | 1257 (295, 3483) | 0.38 (0.3, 0.5) |
Colon | 0.122 | 15 | 22 (15, 34) | 0.8 (0.66, 0.87) |
Lymphoma | 0.033 | 2796 | 2718 (2030, 3269) | 0.82 (0.68, 0.86) |
Prostate | 0.089 | 4 | 3 (2, 4) | 0.72 (0.49, 0.92) |
Srbct | 0.025 | 374 | 18 (12, 40) | 0.45 (0.34, 0.61) |
NN.vs | ||||
Leukemia | 0.056 | 512 | 23 (4, 134) | 0.17 (0.14, 0.24) |
Breast 2 cl. | 0.337 | 88 | 23 (4, 110) | 0.24 (0.2, 0.31) |
Breast 3 cl. | 0.424 | 9 | 45 (6, 214) | 0.66 (0.61, 0.72) |
NCI 60 | 0.237 | 1718 | 880 (360, 1718) | 0.44 (0.34, 0.57) |
Adenocar. | 0.181 | 9868 | 73 (8, 1324) | 0.13 (0.1, 0.18) |
Brain | 0.194 | 1834 | 158 (52, 601) | 0.16 (0.12, 0.25) |
Colon | 0.158 | 8 | 9 (4, 45) | 0.57 (0.45, 0.72) |
Lymphoma | 0.04 | 15 | 15 (5, 39) | 0.5 (0.4, 0.6) |
Prostate | 0.081 | 7 | 6 (3, 18) | 0.46 (0.39, 0.78) |
Srbct | 0.031 | 11 | 17 (11, 33) | 0.7 (0.66, 0.85) |