Figure 4.
Top Radiomic Features identified by the Random Survival Forest (RSF) for Overall Survival (OS). Boxplots of top 6 features selected using the variable importance from the Random Survival Forest (RSF) over the training data and their distribution within the two clusters identified for Overall Survival (OS). The difference in distribution suggests that these variables can be used in a model to assign cluster labels to test patients. Radiomic features names have been abbreviated to fit in the figure: GL = GrayLevel, CoM = CoocurrenceMatrix, RL = RunLength.