validation

vps
vps New Altair Community Member
edited November 2024 in Community Q&A
Hi,
What are types of validation in Auto Model (Bootstrapping Validation, Cross Validation, Split Validation, Wrapper Split Validation, Wrapper-X-Validation) ?

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Best Answers

  • jacobcybulski
    jacobcybulski New Altair Community Member
    Answer ✓
    As I can see the Auto Models are validated using multiple hold-out validations, which are then averaged using Performance Average (Robust). So this is not a "standard" RM process. When you generate an Auto Model, you can inspect each process individually by clicking into "Open Process".

  • varunm1
    varunm1 New Altair Community Member
    edited May 2020 Answer ✓
    Hello @vps

    Its a multi hold out validation as informed by @jacobcybulski. The data is split into 60:40 (train:test) ratio. The 40 % of test data is again split into 7 subsets and then all the 7 subsets are tested and their performances are aggregated to get the final performance in auto model.
  • lionelderkrikor
    lionelderkrikor New Altair Community Member
    Answer ✓
    HI @vps,

    Yes, there is a short description of how is validated the model in the final screen of Auto-Model (the results screen):
    just click on the "information (i)" button : 



    Regards,

    Lionel

Answers

  • jacobcybulski
    jacobcybulski New Altair Community Member
    Answer ✓
    As I can see the Auto Models are validated using multiple hold-out validations, which are then averaged using Performance Average (Robust). So this is not a "standard" RM process. When you generate an Auto Model, you can inspect each process individually by clicking into "Open Process".

  • varunm1
    varunm1 New Altair Community Member
    edited May 2020 Answer ✓
    Hello @vps

    Its a multi hold out validation as informed by @jacobcybulski. The data is split into 60:40 (train:test) ratio. The 40 % of test data is again split into 7 subsets and then all the 7 subsets are tested and their performances are aggregated to get the final performance in auto model.
  • vps
    vps New Altair Community Member
    Thanks!
    Is there any documentation regarding the validation in Auto Model?

  • lionelderkrikor
    lionelderkrikor New Altair Community Member
    Answer ✓
    HI @vps,

    Yes, there is a short description of how is validated the model in the final screen of Auto-Model (the results screen):
    just click on the "information (i)" button : 



    Regards,

    Lionel
  • vps
    vps New Altair Community Member
    Thanks a lot, Lionel. That seems to completely fix the issue.