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Dakota Reference Manual
Version 6.15
Explore and Predict with Confidence
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Assign each member to a layer, based on domination the rank based on layers
Alias: none
Argument(s): none
The fitness_type:
layer_rank
has been specifically designed to avoid problems with aggregating and scaling objective function values and transforming them into a single objective.
The layer_rank
fitness assessor works by assigning all non-dominated designs a layer of 0, then from what remains, assigning all the non-dominated a layer of 1, and so on until all designs have been assigned a layer. The values are negated to follow the higher-is-better fitness convention.
Use of the below_limit
selector with the layer_rank
fitness assessor has the effect of keeping all those designs whose layer is below a certain threshold again subject to the shrinkage limit.