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Multi-criterial example for the Matlab interface

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This commit is contained in:
Marcel Kronfeld 2011-02-16 12:47:15 +00:00
parent 749c75fe2a
commit 489e0a6f3f
4 changed files with 54 additions and 30 deletions
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12
resources/MatlabInterface/JEInterface-examples.m
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@ -16,12 +16,20 @@ JI=optimize(JI, 4);
finalPop=getMultipleResults(JI);
% binary case
R=20;
R=30;
JI=JEInterface(@testfun, 'binary', R, R, 4, 'Display', 'iter');
JI=optimize(JI, 3);
JI=setOutputAllStatsFields(JI, 0); % suppress output of additional statistics, spares runtime with large populations
JI=optimizeWith(JI, 3, 'population', eva2.server.go.populations.Population(1000);
[sol, fit]=getResult(JI);
finalPop=getMultipleResults(JI);
% binary case with a multi-objective fitness function
R=30;
JI=JEInterface(@testfun, 'binary', R, R, 6, 'Display', 'iter', 'TolX', 0, 'TolFun', 0, 'MaxFunEvals', 3000);
JI=optimizeWith(JI, 14);
% The resulting solution set is a pareto dominant set found with NSGA-II
[finalSols, finalFit]=getMultipleResults(JI);
% integer case with specific initialization range
initR=[-15 -15 -15 -15 -15; -5 -5 -5 -5 -5];
R=[-15 -15 -15 -15 -15; 15 15 15 15 15];

16
resources/MatlabInterface/testfun.m
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@ -17,4 +17,20 @@ switch y
end
case 5 % simple parabola
z (1)=sum( x .* x ) ;
case 6 % binary function with two criteria: longest sequence of zeros and number of ones
% Optimal solutions have the form 1*0*1* in {0,1}^length(x)
numOnes=0;
longestZeroLen=0;
currentZeroLen=0;
for i=1:length(x)
if x(i)=='1'
numOnes=numOnes+1;
currentZeroLen=0;
else
currentZeroLen=currentZeroLen+1;
if currentZeroLen>longestZeroLen ; longestZeroLen=currentZeroLen; end
end;
%disp(sprintf('at %f : numOnes=%f, currentZeroLen=%f, longest=%f ', i, numOnes, currentZeroLen, longestZeroLen));
end
z=[length(x)-longestZeroLen, length(x)-numOnes];
end

4
src/eva2/server/go/problems/AbstractProblemInteger.java
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@ -1,7 +1,7 @@
package eva2.server.go.problems;
import eva2.server.go.individuals.AbstractEAIndividual;
import eva2.server.go.individuals.GAIndividualIntegerData;
import eva2.server.go.individuals.GIIndividualIntegerData;
import eva2.server.go.individuals.InterfaceDataTypeInteger;
import eva2.server.go.populations.Population;
import eva2.server.go.strategies.InterfaceOptimizer;
@ -20,7 +20,7 @@ public abstract class AbstractProblemInteger extends AbstractOptimizationProblem
}
protected void initTemplate() {
if (m_Template==null) m_Template = new GAIndividualIntegerData();
if (m_Template==null) m_Template = new GIIndividualIntegerData();
if (((InterfaceDataTypeInteger)this.m_Template).size()!=this.getProblemDimension()) {
((InterfaceDataTypeInteger)this.m_Template).setIntegerDataLength(this.getProblemDimension());
}

2
src/eva2/server/go/problems/I1Problem.java
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@ -63,6 +63,6 @@ public class I1Problem extends AbstractProblemInteger implements java.io.Seriali
}
public static String globalInfo() {
return "I1(x) = x^2 is to be minimized.";
return "A hyper parabola on integer values x with I1(x) = x^2 is to be minimized.";
}
}