What do you think about some changes in PSGTBehavior.java?

[Todor Balabanov]

https://github.com/LibreOffice/core/blob/105ad5dc174d9e894b0c4f9e24d068090ca8c3aa/nlpsolver/ThirdParty/EvolutionarySolver/src/net/adaptivebox/deps/behavior/PSGTBehavior.java#L94

  @Override

  public void generateBehavior(SearchPoint trailPoint, ProblemEncoder
problemEncoder) {

DesignSpace designSpace = problemEncoder.getDesignSpace();


double[] pold_t_location = pold_t.getLocation();

double[] pbest_t_location = pbest_t.getLocation();

double[] pcurrent_t_location = pcurrent_t.getLocation();

    double[] gbest_t_location = socialLib.getGbest().getLocation();

    double[] trailPointLocation = trailPoint.getLocation();



    int DIMENSION = designSpace.getDimension();

    for (int b = 0; b < DIMENSION; b++) {

      if (Math.random() < CL) {

        designSpace.mutationAt(trailPointLocation, b);

        continue;

      }



      double deltaxb = weight * (pcurrent_t_location[b] - pold_t_location[b
])

            + c1 * Math.random() * (pbest_t_location[b] -
pcurrent_t_location[b])

            + c2 * Math.random() * (gbest_t_location[b] -
pcurrent_t_location[b]);


      // limitation for delta_x

      double deltaxbm = 0.5 * designSpace.getMagnitudeIn(b);



      if (deltaxb < -deltaxbm) {

        deltaxb = -deltaxbm;

      } else if (deltaxb > deltaxbm) {

        deltaxb = deltaxbm;

      }



      trailPointLocation[b] = pcurrent_t_location[b] + deltaxb;

    }

  }

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