Figure 6
From: Analysis of regional bone scan index measurements for the survival of patients with prostate cancer
Investigating possible non-linear correlations in ANN ensembles. The bottom axis shows the univariate (linear) validation performance of the regions. The left axis shows the multivariate ranking of the regions given as the drop in C-index when removing the regions individually from a model trained on all regions. Non-linear effects would be expected to show up in the upper left quadrant.