The Altair Community is migrating to a new platform to provide a better experience for you. In preparation for the migration, the Altair Community is on read-only mode from October 28 - November 6, 2024. Technical support via cases will continue to work as is. For any urgent requests from Students/Faculty members, please submit the form linked here

Gradient Boosted Trees does not report attribute weights correctly

yzanyzan Member Posts: 66 Unicorn

In the attached example, the attribute weights port outputs:

J.TIPO_DE_ESFERASTER 6.545000076293945
P.PERFORANTE 5.506167411804199
F.TIPO_DE_EXOSTILO 3.6711277961730957
C.TIPO_ESPICULA_PRINCIPAL_ESTRONGILOXA 1.0875003337860107
Name 1.0
C.TIPO_ESPICULA_PRINCIPAL_ESTILO_TILOSTILO 0.6074188947677612

 

But the model output shows:

                                  Variable Relative Importance Scaled Importance Percentage
J.TIPO_DE_ESFERASTER 6.545000 1.000000 0.370537
P.PERFORANTE 5.506167 0.841278 0.311725
F.TIPO_DE_EXOSTILO 3.671128 0.560906 0.207836
C.TIPO_ESPICULA_PRINCIPAL_ESTRONGILOXA 1.087500 0.166157 0.061568
C.TIPO_ESPICULA_PRINCIPAL_ESTILO_TILOSTILO 0.607419 0.092807 0.034388

 Note that "Name" attribute is once (falsely) listed among important attributes and once not.

 

 

Tagged:
0
0 votes

Declined · Last Updated

No activity or votes since Sep 2018. Please comment and cc sgenzer if this should be reopened. HHO-111

Comments

  • sgenzersgenzer Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,959 Community Manager
Sign In or Register to comment.