RBFNeuron.h

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/************************************************************************
* Verve                                                                 *
* Copyright (C) 2004-2006                                               *
* Tyler Streeter  tylerstreeter@gmail.com                               *
* All rights reserved.                                                  *
* Web: http://verve-agents.sourceforge.net                              *
*                                                                       *
* This library is free software; you can redistribute it and/or         *
* modify it under the terms of EITHER:                                  *
*   (1) The GNU Lesser General Public License as published by the Free  *
*       Software Foundation; either version 2.1 of the License, or (at  *
*       your option) any later version. The text of the GNU Lesser      *
*       General Public License is included with this library in the     *
*       file license-LGPL.txt.                                          *
*   (2) The BSD-style license that is included with this library in     *
*       the file license-BSD.txt.                                       *
*                                                                       *
* This library 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 files    *
* license-LGPL.txt and license-BSD.txt for more details.                *
************************************************************************/

#ifndef VERVE_RBF_NEURON_H
#define VERVE_RBF_NEURON_H

#include "Neuron.h"

namespace verve
{
        struct RBFInputData;

        enum RBFActivationCode
        {
                HIGH_ACTIVATION,

                LOW_ACTIVATION,

                NO_ACTIVATION
        };

        class RBFNeuron : public Neuron
        {
        public:
                VERVE_DECL RBFNeuron(unsigned int id);

                VERVE_DECL virtual ~RBFNeuron();

                VERVE_DECL virtual void VERVE_CALL init(real stdDevWidth, 
                        real newRBFThreshold, const RBFInputData& inputData);

                VERVE_DECL virtual RBFActivationCode VERVE_CALL updateFiringRate(
                        const RBFInputData& inputData);

                VERVE_DECL virtual unsigned int VERVE_CALL 
                        getNumDiscreteDimensions()const;

                VERVE_DECL virtual unsigned int VERVE_CALL 
                        getNumContinuousDimensions()const;

                VERVE_DECL virtual const unsigned int* VERVE_CALL 
                        getDiscretePosition()const;

                VERVE_DECL virtual const real* VERVE_CALL 
                        getContinuousPosition()const;

        protected:
                unsigned int mNumDiscreteDimensions;

                unsigned int mNumContinuousDimensions;

                unsigned int* mDiscretePosition;

                real* mContinuousPosition;

                real mRBFDenominatorInverse;

                real mActivationThresholdDistanceSquared;

                real mNewRBFThresholdDistanceSquared;
        };
}

#endif

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