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rprop.h

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#ifndef __RPROPTRAINER_H__
#define __RPROPTRAINER_H__

#include "inanna/trainer.h"
#include "inanna/backprop.h"

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//        |---  |---  |/\  __  |  )   |   |/\  ___| | |/ \  /   ) |/\        //
//        | \   |     |   /  \ |--    |   |   (   | | |   | |---  |          //
//        |  \  |     |   \__/ |      |   |    \__| | |   |  \__  |          //

class RPropTrainer : public BackpropTrainer {
  public:
    virtual Array<DynParameter>*    parameters  () const;
    virtual void                    init        (const StringMap& params);
    
  protected:

    virtual void                    initTrain       (ANNetwork& network) const;

    virtual void                    backpropagate   (ANNetwork& network, const PatternSet& set, int p) const;

    virtual void                    updateWeights   (ANNetwork& network) const;

  protected:
    double  mDelta0;

    double  mDeltaMax;

    mutable Vector  mDelta;

    mutable Vector  mOldDeltaW;

    mutable Vector  mGradient;
};

#endif

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