operators_nsga2.h

多目标优化进化算法目前公认效果收敛性最好的算法NSGA2c++源码,具有一般性

///////////////////////////////////////////////////////////////////
/*****************************************************************
Copyright: Artificial Life and Adaptive Robotics Laboratory - ALAR
School of ITEE, UNSW@ADFA, Australia, 2005
*******************************************************************/
///////////////////////////////////////////////////////////////////

#if !defined(_NSGA2)
#define _NSGA2

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "population.h"
#include "Random.h"
#include "objective.h"
#include "movpeaks.h"
extern double global_max;
extern double maxheight;
class operators_NSGA2  
{
public:
	void init(double _pc,double _pm,int ObjID);

	double eDistance(individual &id1, individual &id2);
	void add_secondobjective(population &pop, int pop_size);
	void re_evaluate(individual &id);
	void setAge();
	void Evolve(int population_size, int N_generation, int SEED, int n_Genes,int n_Objs,int *GSize,double *Ub,double *Lb);
	void combination(population &Q,population &P);
	void set_objectivevalue(individual &id,double *real_params);
	void initialize_population(const int n_Genes,int n_Objs,int *GSize,double *Ub,double *Lb,population &pop);
	static void copyarray(unsigned int *&d,unsigned int *s,int size);
	void set_objectivevalue_maxmin(population &p, int size);
	void crowding_sort(population &F, int sort);
	
	void mutation(population &pop);
	void crossover(population &pop);
	void selection(population &q,population &p);  // crowded selection
	operators_NSGA2(){pc=1;pm=0;obj.setObjID(1); max_values=NULL;min_values=NULL;}
	operators_NSGA2(double _pc,double _pm,int ObjID)
	{
		init(_pc,_pm,ObjID);
	}
	virtual ~operators_NSGA2();
	
	population newpop;  // temp;
	population P;    // parrent population: size N
	population Q;    // offspring population: size N
	population F;    // sub population 


//private:
	int n_SEED,n_GEN;
	objective obj;
	Random rnd;   //random generator
	double pc;
	double pm;
	double *min_values;
	double *max_values;
	//int lastrun;
	//double dev;
	int objID;
	int N_evals;
	int genNo;
};	

#endif // !defined(_NSGA2)