QGreedyPolicy.hpp

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#ifndef AI_TOOLBOX_MDP_Q_GREEDY_POLICY_HEADER_FILE
#define AI_TOOLBOX_MDP_Q_GREEDY_POLICY_HEADER_FILE
 
#include <AIToolbox/MDP/Policies/QPolicyInterface.hpp>
 
namespace AIToolbox::MDP {
    class QGreedyPolicy : public QPolicyInterface {
        public:
            QGreedyPolicy(const QFunction & q);
 
            virtual size_t sampleAction(const size_t & s) const override;
 
            virtual double getActionProbability(const size_t & s, const size_t & a) const override;
 
            virtual Matrix2D getPolicy() const override;
 
        private:
            // To avoid reallocating a vector every time for sampling.
            mutable std::vector<size_t> bestActions_;
    };
}
 
#endif