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Multiobjective DE now makes sense and works after the DEMO scheme

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Michael de Paly
2010-01-22 17:22:29 +00:00
parent bb67e727bb
commit 3af8d5cd25
1 changed files with 13 additions and 3 deletions
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16
src/eva2/server/go/strategies/DifferentialEvolution.java
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@@ -9,6 +9,7 @@ import eva2.server.go.enums.DETypeEnum;
import eva2.server.go.individuals.AbstractEAIndividual;
import eva2.server.go.individuals.InterfaceDataTypeDouble;
import eva2.server.go.operators.selection.replacement.ReplacementCrowding;
import eva2.server.go.operators.selection.replacement.ReplacementNondominatedSortingDistanceCrowding;
import eva2.server.go.populations.InterfaceSolutionSet;
import eva2.server.go.populations.Population;
import eva2.server.go.populations.SolutionSet;
@@ -463,9 +464,18 @@ public class DifferentialEvolution implements InterfaceOptimizer, java.io.Serial
nextDoomed = getNextDoomed(m_Population, nextDoomed+1);
} else {
if (m_Problem instanceof AbstractMultiObjectiveOptimizationProblem) {
ReplacementCrowding repl = new ReplacementCrowding();
repl.insertIndividual(indy, m_Population, null);
} else {
if(indy.isDominatingDebConstraints(m_Population.getEAIndividual(index))){ //child dominates the parent replace the parent
m_Population.replaceIndividualAt(index, indy);
}else if(!(m_Population.getEAIndividual(index).isDominatingDebConstraints(indy))){ //do nothing if parent dominates the child use crowding if neither one dominates the other one
ReplacementNondominatedSortingDistanceCrowding repl =new ReplacementNondominatedSortingDistanceCrowding();
repl.insertIndividual(indy, m_Population, null);
}
// ReplacementCrowding repl = new ReplacementCrowding();
// repl.insertIndividual(indy, m_Population, null);
} else {
// index = RNG.randomInt(0, this.m_Population.size()-1);
if (!compareToParent) index = RNG.randomInt(0, this.m_Population.size()-1);
orig = (AbstractEAIndividual)this.m_Population.get(index);