ml.inl.hpp

// This file is part of OpenCV project.




// It is subject to the license terms in the LICENSE file found in the top-level directory




// of this distribution and at http://opencv.org/license.html.








#ifndef OPENCV_ML_INL_HPP




#define OPENCV_ML_INL_HPP








namespace

cv
{
namespace
ml {







// declared in ml.hpp




template<class
SimulatedAnnealingSolverSystem>



int
simulatedAnnealingSolver(SimulatedAnnealingSolverSystem& solverSystem,



double
initialTemperature,
double
finalTemperature,
double
coolingRatio,



size_t
iterationsPerStep,



CV_OUT
double* lastTemperature,



cv::RNG& rngEnergy


)


{



CV_Assert(finalTemperature > 0);



CV_Assert(initialTemperature > finalTemperature);



CV_Assert(iterationsPerStep > 0);



CV_Assert(coolingRatio < 1.0f);



double
Ti = initialTemperature;



double
previousEnergy = solverSystem.energy();



int
exchange = 0;



while
(Ti > finalTemperature)



{



for
(size_t
i = 0; i < iterationsPerStep; i++)



{



solverSystem.changeState();



double
newEnergy = solverSystem.energy();



if
(newEnergy < previousEnergy)



{



previousEnergy = newEnergy;



exchange++;



}



else




{



double
r = rngEnergy.uniform(0.0, 1.0);



if
(r <
std::exp(-(newEnergy - previousEnergy) / Ti))



{



previousEnergy = newEnergy;



exchange++;



}



else




{



solverSystem.reverseState();



}



}



}



Ti *= coolingRatio;



}



if
(lastTemperature)



*lastTemperature = Ti;



return
exchange;


}






}}
//namespace








#endif

// OPENCV_ML_INL_HPP