ga.h

遗传算法和神经网络结合

/*
  YAKS, Optann, a Khepera simulator including a separate GA and ANN 
  (Genetic Algoritm, Artificial Neural Net).
  Copyright (C) 2000  Johan Carlsson ([e-mail])
  
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

 */

#ifndef GA_H
#define GA_H
#include <stdlib.h>
#include <stdio.h>
#include <iostream.h>
#include "ann.h"
#include "geom.h"
 
typedef struct{
  int index;
  double fitness;
}FINDEX_T;

class Ga{
 public:
  Ga(int iNrOfIndivids,int iEpochs);
  ~Ga();
  void createIndivids(const Ann *orginal);
  void createNewGeneration(int parents, 
			   int offsprings);
  void createNewGenerationWithMutation(int parents, 
				       int offsprings,
				       int bitMutation);
  void createNewGenerationWithWeightMutation(int parents, 
					     int offsprings, 
					     int bitMutation);
  void createNewGenerationWithWeightMutation(int parents, 
					     int offsprings, 
					     int bitMutation,
					     FILE *fp);

  void tournamentSelectionWithMutation(int bitMutation);
  void saveBestIndividsFitness(int nr, FILE *fp,int show);
  void saveAllIndividsWeights(FILE *fp);
  void loadAllIndividsWeights(FILE *fp);
  void mutateIndivids(int bitMutateProbability);
  Ann **individs;
  void setFitness(int iIndivid,
		  int iEpoch, 
		  double newFitness);
  double getFitness(int iIndivid,
		    int iEpoch);
  double getTotalFitness(int n);
  int getBestIndivid();
  void resetFitness();
  int nrOfIndivids;
 private:
  void addIndivid();
  int compare(int o1, int o2);

  int epochs;

  double **fitness;
  double *totalFitness;

};
#endif /* GA_H */