Figure 2

Results: Dutch breast cancer data set. The boxplots show results for lasso and ridge regression applied to 100 training/test splits for genes, GO groups, and preclustered GO groups for the Dutch breast cancer data set. P-values of the prognostic index are presented on - log₁₀ scale. A small value of a criterion corresponds to a good prediction performance. The Brier Scores are calculated for 10 years follow-up. Small values of the Integrated Brier Score correspond to good prediction performance. $L_1\widehat{=}\text{l}\text{a}\text{s}\text{s}\text{o}\text{r}\text{e}\text{g}\text{r}\text{e}\text{s}\text{s}\text{i}\text{o}\text{n}$,$L_2\widehat{=}\text{r}\text{i}\text{d}\text{g}\text{e}\text{r}\text{e}\text{g}\text{r}\text{e}\text{s}\text{s}\text{i}\text{o}\text{n}$.