Table 5 Computational cost comparison Results presented in CPU seconds and in increasing order. All experiments were conducted using Matlab code on a dual CPU Athlon 1400+ running Linux.
From: Feature selection and nearest centroid classification for protein mass spectrometry
| Â | Ave. CPU Time | (+/-) | OC-H4 | OC-WCX2a | OC-WCX2b | PC-H4 | PC-IMAC-Cu |
|---|---|---|---|---|---|---|---|
No FE | 1.19 | 0.40 | 0.84 | 0.87 | 1.11 | 1.31 | 1.82 |
P-test | 2.42 | 1.11 | 1.41 | 1.58 | 4.12 | 2.08 | 2.90 |
PCA | 19.39 | 7.70 | 12.69 | 12.08 | 17.41 | 25.57 | 29.21 |
PCA/LDA | 20.58 | 8.08 | 13.53 | 12.95 | 18.52 | 26.88 | 31.03 |
KS-test | 27.36 | 3.07 | 25.56 | 24.55 | 29.96 | 25.40 | 31.34 |
Boosted | 543.42 | 332.13 | 371.73 | 134.56 | 507.62 | 688.22 | 1014.97 |
T-test | 649.84 | 39.39 | 622.97 | 623.37 | 645.66 | 639.14 | 718.04 |
SFS | 3164.70 | 1477.13 | 2178.24 | 2175.75 | 2516.42 | 3269.37 | 5683.70 |
BoostedFE | 3356.89 | 2236.51 | 2679.97 | 1336.25 | 1841.57 | 3997.65 | 6928.99 |
NSC(20) | 5434.20 | 3321.34 | 3717.30 | 1345.60 | 5076.20 | 6882.20 | 10149.70 |
SBS | 23934.82 | 6655.33 | 17032.94 | 17244.80 | 29913.61 | 24574.69 | 30908.07 |