Figure 1
From: Random forests on Hadoop for genome-wide association studies of multivariate neuroimaging phenotypes
PaRFR design. An illustration of the RF algorithm implemented according to the MapReduce model. In this example there are 6 SNPs observed on 6 samples, and the analysis is carried out using 3 mappers and 3 reducers. The RF parameters here are set to Ntree = 3 and Mtry = 3.