Dakota Reference Manual  Version 6.4
Large-Scale Engineering Optimization and Uncertainty Analysis
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decay


Estimate spectral coefficient decay rates to guide dimension-adaptive refinement.

Specification

Alias: none

Argument(s): none

Description

Estimate spectral coefficient decay rates from a rate estimation technique similar to Richardson extrapolation. These decay rates are used to guide dimension-adaptive refinement, where slower decay rates result in higher dimension preference.

Examples

method,
        polynomial_chaos                        
          sparse_grid_level = 3
          dimension_adaptive p_refinement decay 
            max_iterations  = 20                
            convergence_tol = 1.e-4