@Override
public Solution generate() {
Solution solution = newSolution();
for (int i = 0; i < numberOfObjectives - 1; i++) {
((RealVariable) solution.getVariable(i)).setValue(PRNG.nextDouble());
}
for (int i = numberOfObjectives - 1; i < numberOfVariables; i++) {
((RealVariable) solution.getVariable(i)).setValue(0);
}
evaluate(solution);
return solution;
}
@Override
public Solution[] evolve(Solution[] parents) {
Solution result1 = parents[0].copy();
Solution result2 = parents[1].copy();
for (int i = 0; i < result1.getNumberOfVariables(); i++) {
Variable variable1 = result1.getVariable(i);
Variable variable2 = result2.getVariable(i);
if ((PRNG.nextDouble() <= probability)
&& (variable1 instanceof Subset)
&& (variable2 instanceof Subset)) {
evolve((Subset) variable1, (Subset) variable2);
}
}
return new Solution[] {result1, result2};
}