104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
//-----------------------------------------------------------------------------
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// t-eoEasySyncPSO.cpp
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//-----------------------------------------------------------------------------
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#ifndef __GNUG__
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// to avoid long name warnings
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#pragma warning(disable:4786)
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#endif // __GNUG__
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#include <eo>
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//-----------------------------------------------------------------------------
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typedef eoMinimizingFitness FitT;
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typedef eoRealParticle < FitT > Particle;
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//-----------------------------------------------------------------------------
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// the objective function
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double real_value (const Particle & _particle)
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{
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double sum = 0;
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for (unsigned i = 0; i < _particle.size ()-1; i++)
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sum += pow(_particle[i],2);
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return (sum);
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}
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int main()
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{
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const unsigned int VEC_SIZE = 2;
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const unsigned int POP_SIZE = 20;
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const unsigned int NEIGHBORHOOD_SIZE= 5;
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unsigned i;
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// the population:
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eoPop<Particle> pop;
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// Evaluation
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eoEvalFuncPtr<Particle, double, const Particle& > eval( real_value );
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// position init
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eoUniformGenerator < double >uGen (-3, 3);
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eoInitFixedLength < Particle > random (VEC_SIZE, uGen);
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// velocity init
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eoUniformGenerator < double >sGen (-2, 2);
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eoVelocityInitFixedLength < Particle > veloRandom (VEC_SIZE, sGen);
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// local best init
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eoFirstIsBestInit < Particle > localInit;
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// perform position initialization
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pop.append (POP_SIZE, random);
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// topology
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eoLinearTopology<Particle> topology(NEIGHBORHOOD_SIZE);
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// the full initializer
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eoInitializer <Particle> init(eval,veloRandom,localInit,topology,pop);
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init();
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// bounds
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eoRealVectorBounds bnds(VEC_SIZE,-1.5,1.5);
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// velocity
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eoStandardVelocity <Particle> velocity (topology,1,1.6,2,bnds);
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// flight
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eoStandardFlight <Particle> flight;
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// Terminators
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eoGenContinue <Particle> genCont1 (50);
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eoGenContinue <Particle> genCont2 (50);
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// PS flight
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eoSyncEasyPSO<Particle> pso1(genCont1, eval, velocity, flight);
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eoSyncEasyPSO<Particle> pso2(init,genCont2, eval, velocity, flight);
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// flight
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try
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{
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pso1(pop);
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std::cout << "FINAL POPULATION AFTER SYNC PSO n°1:" << std::endl;
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for (i = 0; i < pop.size(); ++i)
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std::cout << "\t" << pop[i] << " " << pop[i].fitness() << std::endl;
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pso2(pop);
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std::cout << "FINAL POPULATION AFTER SYNC PSO n°2:" << std::endl;
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for (i = 0; i < pop.size(); ++i)
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std::cout << "\t" << pop[i] << " " << pop[i].fitness() << std::endl;
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}
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catch (std::exception& e)
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{
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std::cout << "exception: " << e.what() << std::endl;;
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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