Plot of LOOCV accuracy of LDA, NB, and SVM using k top ranked genes from SVM-RFE for k = 2, …, 150. The accuracy of SVM in general increases as more genes are included in the model. The accuracies of LDA and NB do not show an increasing pattern suggesting that the gene ranking by SVM-RFE is SVM specific and may not generalize well to NB or LDA. The plotted curves assume the number of genes is known (oracle situation). Without knowing the number of genes to be used, additional variability will add to the LOOCV accuracy. The diamond-shaped points show the LOOCV accuracy of the LDA, NB, and SVM classifiers using the genes selected by BMSF.
Zhang et al. BMC Bioinformatics 2012 13:298 doi:10.1186/1471-2105-13-298