Figure 14

Stability selection paths. Stability selection paths, with the number of boosting iterations plotted against the relative selection frequency of the base-learners up to that iteration. One can deduce that the number of iterations was sufficiently large, as all selection paths cease to increase after approx. 150 iterations. The solid horizontal gray line is the threshold value with unimodality assumption (π _thr=0.87), the dashed gray lines represent the threshold values with r-concavity assumption (π _thr=0.69) and without assumption (π _thr=1).