Main Page   Groups   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Concepts

itkBackPropagationLayer.h

Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkBackPropagationLayer.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/04/17 21:34:31 $
00007   Version:   $Revision: 1.3 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkBackPropagationLayerBase_h
00018 #define __itkBackPropagationLayerBase_h
00019 
00020 #include "itkLayerBase.h"
00021 #include "itkObject.h"
00022 #include "itkMacro.h"
00023 
00024 namespace itk
00025 {
00026 namespace Statistics
00027 {
00028 template<class TVector, class TOutput>
00029 class BackPropagationLayer : public LayerBase<TVector, TOutput>
00030 {
00031 public:           
00032   typedef BackPropagationLayer Self;
00033   typedef LayerBase<TVector, TOutput> Superclass;
00034   typedef SmartPointer<Self> Pointer;
00035   typedef SmartPointer<const Self> ConstPointer;
00036 
00038   itkTypeMacro(BackPropagationLayer, LayerBase);  
00039   itkNewMacro(Self);
00041 
00042   typedef typename Superclass::ValueType ValueType;
00043   typedef typename Superclass::ValuePointer ValuePointer;
00044   typedef vnl_vector<ValueType> NodeVectorType;
00045   typedef typename Superclass::InternalVectorType InternalVectorType;
00046   typedef typename Superclass::OutputVectorType OutputVectorType;
00047 
00048   //Member Functions
00049   void SetNumberOfNodes(unsigned int);
00050   ValueType GetInputValue(unsigned int i);
00051   void SetInputValue(unsigned int i, ValueType value);
00052 
00053   ValueType GetOutputValue(int);
00054   void SetOutputValue(int, ValueType);
00055 
00056   ValuePointer GetOutputVector();
00057   void SetOutputVector(TVector value);
00058 
00059   void ForwardPropagate();
00060   void ForwardPropagate(TVector);
00061 
00062   void BackwardPropagate(InternalVectorType e);
00063   void BackwardPropagate();
00064 
00065   void SetOutputErrorValues(TOutput);
00066   ValueType GetOutputErrorValue(unsigned int);
00067 
00068   ValueType GetInputErrorValue(int);
00069   ValuePointer GetInputErrorVector();
00070   void SetInputErrorValue(ValueType, int);
00071 
00072   ValueType Activation(ValueType);
00073   ValueType DActivation(ValueType);
00074 
00076   void SetBias(ValueType b);
00077   ValueType GetBias();
00079 
00080 protected:                
00081 
00082   BackPropagationLayer();
00083   ~BackPropagationLayer();
00084 
00086   virtual void PrintSelf( std::ostream& os, Indent indent ) const;
00087 
00088 private:
00089 
00090   NodeVectorType   m_NodeInputValues;
00091   NodeVectorType   m_NodeOutputValues;
00092   NodeVectorType   m_InputErrorValues;
00093   NodeVectorType   m_OutputErrorValues;
00094   ValueType        m_Bias;
00095 };
00096 
00097 } // end namespace Statistics
00098 } // end namespace itk
00099 
00100 #ifndef ITK_MANUAL_INSTANTIATION
00101   #include "itkBackPropagationLayer.txx"
00102 #endif
00103 
00104 #endif
00105 

Generated at Sat Sep 2 20:07:45 2006 for ITK by doxygen 1.4.7 written by Dimitri van Heesch, © 1997-2000