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[yul-phaser] Population: Add mutate() and crossover() methods

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This commit is contained in:
cameel
2020-03-09 13:21:48 +01:00
committed by Kamil Śliwak
parent 92b54d83a3
commit 7e80ac861f
4 changed files with 97 additions and 0 deletions
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tools/yulPhaser/Population.cpp
+26
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@@ -17,6 +17,7 @@
#include <tools/yulPhaser/Population.h>
#include <tools/yulPhaser/PairSelections.h>
#include <tools/yulPhaser/Selections.h>
#include <libsolutil/CommonData.h>
@@ -93,6 +94,31 @@ Population Population::select(Selection const& _selection) const
return Population(m_fitnessMetric, selectedIndividuals);
}
Population Population::mutate(Selection const& _selection, function<Mutation> _mutation) const
{
vector<Individual> mutatedIndividuals;
for (size_t i: _selection.materialise(m_individuals.size()))
mutatedIndividuals.emplace_back(_mutation(m_individuals[i].chromosome), *m_fitnessMetric);
return Population(m_fitnessMetric, mutatedIndividuals);
}
Population Population::crossover(PairSelection const& _selection, function<Crossover> _crossover) const
{
vector<Individual> crossedIndividuals;
for (auto const& [i, j]: _selection.materialise(m_individuals.size()))
{
auto [childChromosome1, childChromosome2] = _crossover(
m_individuals[i].chromosome,
m_individuals[j].chromosome
);
crossedIndividuals.emplace_back(move(childChromosome1), *m_fitnessMetric);
crossedIndividuals.emplace_back(move(childChromosome2), *m_fitnessMetric);
}
return Population(m_fitnessMetric, crossedIndividuals);
}
Population operator+(Population _a, Population _b)
{
// This operator is meant to be used only with populations sharing the same metric (and, to make