topic Ensemble from Multiple Decision Tree Models in SAS Data Science https://communities.sas.com/t5/SAS-Data-Science/Ensemble-from-Multiple-Decision-Tree-Models/m-p/190196#M2369 <HTML><HEAD></HEAD><BODY><P>Does it make sense to create an ensemble model from several decision tree models? These decision tree models are created by different subsets of variables.</P></BODY></HTML> Tue, 22 Jul 2014 18:53:40 GMT aha123 2014-07-22T18:53:40Z Ensemble from Multiple Decision Tree Models https://communities.sas.com/t5/SAS-Data-Science/Ensemble-from-Multiple-Decision-Tree-Models/m-p/190196#M2369 <HTML><HEAD></HEAD><BODY><P>Does it make sense to create an ensemble model from several decision tree models? These decision tree models are created by different subsets of variables.</P></BODY></HTML> Tue, 22 Jul 2014 18:53:40 GMT https://communities.sas.com/t5/SAS-Data-Science/Ensemble-from-Multiple-Decision-Tree-Models/m-p/190196#M2369 aha123 2014-07-22T18:53:40Z Re: Ensemble from Multiple Decision Tree Models https://communities.sas.com/t5/SAS-Data-Science/Ensemble-from-Multiple-Decision-Tree-Models/m-p/190197#M2370 <HTML><HEAD></HEAD><BODY><P>This makes sense. In fact, to some extent, this can describe a random forest.</P><P></P><P>In a random forest many decision tree models are formed, each of which is built using a random subset of the variables. There are a lot of subtleties behind a random forest, but the general idea of creating an ensemble model from several decision trees, each using a different subset of variables makes sense.</P></BODY></HTML> Wed, 23 Jul 2014 18:47:30 GMT https://communities.sas.com/t5/SAS-Data-Science/Ensemble-from-Multiple-Decision-Tree-Models/m-p/190197#M2370 RalphAbbey 2014-07-23T18:47:30Z