Since the ERT is inherited from the Randomized Trees Class, do they also compute the Gini Index to score the nodes; or do they follow the Shannon score function explained in the article from Pierre Geurts, Damien Ernst and Louis Wehenke: “Extremely randomized trees”, 2006 [http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.65.7485&rep=rep1&type=pdf].
Thanks, cheers.