Tuning spaces from the Bischl (2021) article.
Source
Bischl B, Binder M, Lang M, Pielok T, Richter J, Coors S, Thomas J, Ullmann T, Becker M, Boulesteix A, Deng D, Lindauer M (2021). “Hyperparameter Optimization: Foundations, Algorithms, Best Practices and Open Challenges.” 2107.05847, https://arxiv.org/abs/2107.05847.
kknn tuning space
k \([1, 50]\)
distance \([1, 5]\)
kernel [“rectangular”, “optimal”, “epanechnikov”, “biweight”, “triweight”, “cos”, “inv”, “gaussian”, “rank”]
ranger tuning space
mtry.ratio \([0, 1]\)
replace [TRUE,FALSE]
sample.fraction \([0.1, 1]\)
num.trees \([1, 2000]\)