acceptance_logic

Set criteria for trusted surrogate

Specification

  • Alias: None

  • Arguments: None

  • Default: filter

Child Keywords:

Required/Optional

Description of Group

Dakota Keyword

Dakota Keyword Description

Required (Choose One)

Acceptance Logic

tr_ratio

Surrogate-Based Local iterate acceptance logic

filter

Surrogate-Based Local iterate acceptance logic

Description

Following calculation of the merit function for the new iterate, the iterate is accepted or rejected and the trust region size is adjusted for the next surrogate_based_local iteration. Iterate acceptance is governed either by a trust region ratio ( tr_ratio) formed from the merit function values or by a filter method ( filter); however, trust region resizing logic is currently based only on the trust region ratio. For infeasible iterates, constraint relaxation can be used for balancing constraint satisfaction and progress made toward an optimum.