47 lines
1 KiB
Go
47 lines
1 KiB
Go
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package gago
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// Generational returns a GA instance that uses the generational model.
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func Generational(GenomeFactory GenomeFactory) GA {
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return GA{
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GenomeFactory: GenomeFactory,
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NPops: 2,
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PopSize: 50,
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Model: ModGenerational{
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Selector: SelTournament{
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NContestants: 3,
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},
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MutRate: 0.5,
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},
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}
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}
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// SimulatedAnnealing returns a GA instance that mimicks a basic simulated
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// annealing procedure.
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func SimulatedAnnealing(GenomeFactory GenomeFactory) GA {
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return GA{
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GenomeFactory: GenomeFactory,
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NPops: 1,
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PopSize: 1,
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Model: ModSimAnn{
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T: 100, // Starting temperature
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Tmin: 1, // Stopping temperature
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Alpha: 0.99, // Decrease rate per iteration
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},
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}
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}
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// HillClimbing returns a GA instance that mimicks a basic hill-climbing
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// procedure.
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func HillClimbing(GenomeFactory GenomeFactory) GA {
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return GA{
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GenomeFactory: GenomeFactory,
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NPops: 1,
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PopSize: 1,
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Model: ModMutationOnly{
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NChosen: 1,
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Selector: SelElitism{},
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Strict: true,
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},
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}
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}
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