random-forest-breiman-2001-formulation

IN premise — entries/2026/06/21/wiki-Random_forest-chunk-1.md

Created 2026-06-21T09:55:51+00:00

Leo Breiman (2001) formulated the modern random forest by combining bagging, random feature selection at each split, out-of-bag error estimation, and permutation importance.

Dependents

These beliefs depend on this one:

• OUT rf-impurity-importance-trustworthy — Default impurity-based feature importance in random forests is a trustworthy indicator of variable relevance, backed by OOB validation.