| 1 | # Copyright 2006 by Sean Luke and George Mason University
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| 2 | # Licensed under the Academic Free License version 3.0
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| 3 | # See the file "LICENSE" for more information
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| 4 |
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| 5 | parent.0 = ../../simple/simple.params
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| 6 |
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| 7 | # We use the Rosenbrock function as defined in the ECSuite application
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| 8 | eval.problem = ec.app.ecsuite.ECSuite
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| 9 | eval.problem.type = rosenbrock
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| 10 |
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| 11 | # The SpatialBreeder puts spatial constraints on the whole breeding process, such that only
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| 12 | # nearby individuals are selected as parents for a child
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| 13 | breed = ec.spatial.SpatialBreeder
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| 14 |
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| 15 | # For spatial EAs, we employ a Spatial1DSubpopulation, which embeds the whole population
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| 16 | # onto a toroidal ring with the same size as the population. We also use the new Gaussian
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| 17 | # mutation for DoubleVectorIndividuals.
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| 18 | pop.subpops = 1
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| 19 | pop.subpop.0 = ec.spatial.Spatial1DSubpopulation
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| 20 | pop.subpop.0.duplicate-retries = 10
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| 21 | pop.subpop.0.size = 16
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| 22 | pop.subpop.0.species = ec.vector.FloatVectorSpecies
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| 23 | pop.subpop.0.species.crossover-type = one
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| 24 | pop.subpop.0.species.genome-size = 2
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| 25 | pop.subpop.0.species.fitness = ec.simple.SimpleFitness
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| 26 | pop.subpop.0.species.ind = ec.vector.DoubleVectorIndividual
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| 27 | pop.subpop.0.species.min-gene = -5.12
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| 28 | pop.subpop.0.species.max-gene = 5.12
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| 29 | pop.subpop.0.species.pipe = ec.vector.breed.VectorMutationPipeline
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| 30 | pop.subpop.0.species.mutation-type = gauss
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| 31 | pop.subpop.0.species.mutation-stdev = 0.25
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| 32 | pop.subpop.0.species.mutation-prob = 0.75
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| 33 |
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| 34 | # Parents are selected via SpatialTournamentSelection: given mutation alone, a child at location
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| 35 | # x is created by mutating an parent that is selected from the current population in the vecinity
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| 36 | # of location x (the neighborhood size is set to 2 in this case). If ind-competes is set to true,
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| 37 | # the parent at location x is always selected as one of the participants to the spatial tournament
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| 38 | # selection. In our case, the tournament selection is of size 2.
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| 39 | pop.subpop.0.species.pipe.source.0 = ec.spatial.SpatialTournamentSelection
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| 40 | pop.subpop.0.species.pipe.source.0.size = 2
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| 41 | pop.subpop.0.species.pipe.source.0.neighborhood-size = 2
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| 42 | pop.subpop.0.species.pipe.source.0.ind-competes = true
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