An Idea Exchange for SAS software and services

by SAS Employee PadraicGNeville
on ‎04-25-2017 10:35 AM

I would expect a central tree to be the tree built in the traditional maner, without randomly selecting out-of-bag data or candidate inputs with which split a node.   The randomness in the Forest algorithm serves to perturb the tree away from the non-randomly trained tree.  Using any reasonable metric of distance between trees, I would expect the traditional non-random tree to be in the center of a forest of randomly perturbed trees.  Neither paper mentions this.   Please let me know if I am missing something.



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