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.