point_selection
Enable greedy selection of well-spaced build points
Topics
surrogate_models
Specification
Alias: None
Arguments: None
Default: no point selection
Description
The Dakota Gaussian Process model has a point_selection
option
(default off) that uses a greedy algorithm to select a well-spaced
subset of points prior to the construction of the GP. In this case,
the GP will only interpolate the selected subset. Typically, one
should not need point selection in trust-region methods because a
small number of points are used to develop a surrogate within each
trust region. Point selection is most beneficial when constructing
with a large number of points, typically more than order one hundred,
though this depends on the number of variables and spacing of the
sample points.