SGNGAlgorithm.hpp

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00001 //-----------------------------------------------------------------------------
00002 // Author: Jim Holmström
00003 // Date:   2002-02-13
00004 //-----------------------------------------------------------------------------
00005 
00006 #ifndef __SGNGALGORITHM_H
00007 #define __SGNGALGORITHM_H
00008 
00009 #include "GNGAlgorithm.hpp"
00010 #include <GNGCore/GNGNode.hpp>
00015 class SGNGAlgorithm : public GNGAlgorithm
00016 {
00017 public:
00021   SGNGAlgorithm(unsigned int MSEBackLog) : GNGAlgorithm(MSEBackLog) {};
00022   
00027   void SetSquaredError(double d) { m_squaredError = d; }
00028     
00029 protected:
00034   virtual void UpdateError(GNGNode & s) 
00035   { 
00036     s.SetAccumulatedError( s.GetAccumulatedError() + m_squaredError ); 
00037   }
00038     
00042   virtual void PurgeEdges();
00043 
00050   virtual void MoveWinner(GNGNode & s);
00051   
00058   virtual void MoveNeighbor(GNGNode & s);
00059 
00065   virtual double CalculateMeanDistance(GNGNode & s);
00066   
00067   
00068 protected:
00069    double m_squaredError;
00070 };
00071 
00072 
00073 #endif

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