Implements the "/wgi/nvecs" mutation (weighted global intermediate) for the ExpDE framework. This variant is based on a recombination strategy known as "weighted global intermediate recombination" (see the References section for details)
mutation_wgi(X, mutpars)population matrix
mutation parameters (see Mutation parameters for
details)
Matrix M containing the mutated population
The mutpars parameter contains all parameters required to define the
mutation. mutation_wgi() understands the following fields in
mutpars:
f : scaling factor for difference vector(s).
Accepts numeric vectors of size 1 or nvecs.
nvecs : number of difference vectors to use.
Accepts 1 <= nvecs <= (nrow(X)/2 - 2)
Defaults to 1.
D. Arnold, "Weighted multirecombination evolution strategies". Theoretical Computer Science 361(1): 18-37, 2006.
T. Glasmachers, C. Igel, "Uncertainty handling in model selection for support vector machines". Proc. International Conference on Parallel Problem Solving from Nature (PPSN'08), 185-194, 2008.