| 1 |
#ifndef _CONJUGATEMINIMIZER_H_
|
| 2 |
#define _CONJUGATEMINIMIZER_H_
|
| 3 |
|
| 4 |
#include "MinimizerBase.hpp"
|
| 5 |
|
| 6 |
//abstract class of conjugate gradient minimizer
|
| 7 |
class ConjugateMinimizerBase : public MinimizeBase{
|
| 8 |
|
| 9 |
public:
|
| 10 |
|
| 11 |
ConjugateMinimizerBase(NLModel1* nlmodel);
|
| 12 |
~ConjugateMinimizerBase();
|
| 13 |
|
| 14 |
bool isSolvable();
|
| 15 |
virtual void Init();
|
| 16 |
virtual void Minimize();
|
| 17 |
virtual int isConvergenceAchieved();
|
| 18 |
virtual void reset();
|
| 19 |
virtual void printMinizerInfo();
|
| 20 |
|
| 21 |
protected:
|
| 22 |
|
| 23 |
double calcGamma(vector<double>& newGrad, vector<double>& oldGrad) = 0;
|
| 24 |
NLModel0 * model;
|
| 25 |
|
| 26 |
vector<double> prevGrad;
|
| 27 |
vector<double> gradient;
|
| 28 |
vector<double> prevDirection;
|
| 29 |
vector<double> direction;
|
| 30 |
};
|
| 31 |
|
| 32 |
//Fletcher-Reeves Conjugate Gradient Method
|
| 33 |
class FRCGMinimizer : public ConjugateMinimizerBase{
|
| 34 |
|
| 35 |
protected:
|
| 36 |
|
| 37 |
double calcGamma(vector<double>& newGrad, vector<double>& oldGrad);
|
| 38 |
|
| 39 |
};
|
| 40 |
|
| 41 |
//Polak-Reeves Conjugate Gradient Method
|
| 42 |
class PRCGMinimizer : public ConjugateMinimizerBase{
|
| 43 |
|
| 44 |
protected:
|
| 45 |
|
| 46 |
double calcGamma(vector<double>& newGrad, vector<double>& oldGrad);
|
| 47 |
};
|
| 48 |
|
| 49 |
#endif
|
