Fig. 2

Survival prediction performance comparison between pathway profiles of four pathway-based methods on the gene expression data and those of the iDRW method on the gene expression and copy number data in breast cancer (a) and in neuroblastoma data (b). Performance is measured with accuracies and F-1 scores after 50 repeats of five-fold cross-validation with top-k pathways (a). In the neuroblastoma data, performances are measured using leave-one-out cross-validation due to the sample size (b). The value of k is empirically set to the optimal one for each method. The performance of the gene expression profile is shown as a dotted horizontal line