build_surrogate

Construct moving least squares surrogate over active subspace

Specification

  • Alias: None

  • Arguments: None

Child Keywords:

Required/Optional

Description of Group

Dakota Keyword

Dakota Keyword Description

Optional

refinement_samples

Number of supplementary surrogate build samples

Description

Once the active subspace variables have been identified, replace the fullspace truth model with a moving least squares surrogate model over the reduced variables. The surrogate is constructed using the fullspace function value samples collected during subspace identification, possibly supplemented with additional model-active_subspace-build_surrogate-refinement_samples in the fullspace.

Default Behavior

No surrogate is constructed by default.

Examples

model
  active_subspace
    id_model = 'SUBSPACE'
    truth_model_pointer = 'FULLSPACE'
    initial_samples  100
   build_surrogate
     refinement_samples 10