CostDifferenceDeltaAcceptanceFunction.hpp

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#pragma once

#include <boost/shared_ptr.hpp>
#include <random>

#include "CoolingSchedule.hpp"

namespace ISM {

class ExponentialCoolingSchedule : public CoolingSchedule
{
        public:
                ExponentialCoolingSchedule(double startTemperature, double endTemperature, unsigned repetitionsBeforeUpdate,
                                double temperatureFactor)
                        : CoolingSchedule(startTemperature, endTemperature, repetitionsBeforeUpdate)
                        , mTemperatureFactor(temperatureFactor)
                {}

                bool isNewCostAcceptable(double newCost, double oldCost);
                void update();

        private:
                double mTemperatureFactor;

                std::default_random_engine mGenerator;
                std::uniform_real_distribution<double> mDistribution = std::uniform_real_distribution<double>(0.0, 1.0);

}; typedef boost::shared_ptr<ExponentialCoolingSchedule> ExponentialCoolingSchedulePtr;

}