Fig. 6.

Plot of the partial dependence for the 4 considered meta-features : log(n), log(p), $\mathit{\text{log}}\left(\frac{p}{n}\right)$, C_max. The log scale was chosen for 3 of the 4 features to obtain more uniform distribution (see Fig. 5 where the distribution is plotted in log scale). For each plot, the black line denotes the median of the individual partial dependences, and the lower and upper curves of the grey regions represent respectively the 25%- und 75%-quantiles. Estimated mse is 0.00382 via a 5-CV repeated 4 times