ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkMultilayerNeuralNetworkBase.h
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18 #ifndef __itkMultilayerNeuralNetworkBase_h
19 #define __itkMultilayerNeuralNetworkBase_h
20 
21 #include "itkNeuralNetworkObject.h"
22 
23 namespace itk
24 {
25 namespace Statistics
26 {
33 template<class TMeasurementVector, class TTargetVector,class TLearningLayer=LayerBase<TMeasurementVector, TTargetVector> >
34 class MultilayerNeuralNetworkBase : public NeuralNetworkObject<TMeasurementVector, TTargetVector>
35 {
36 public:
37 
43 
45 
47  itkNewMacro( Self );
48 
49  typedef typename Superclass::ValueType ValueType;
53 
55 
56  typedef TLearningLayer LearningLayerType;
59 
60  typedef std::vector<typename LayerInterfaceType::WeightSetInterfaceType::Pointer>
62  typedef std::vector<typename LayerInterfaceType::Pointer>
64 
67 
68 //#define __USE_OLD_INTERFACE Comment out to ensure that new interface works
69 #ifdef __USE_OLD_INTERFACE
70  itkSetMacro(NumOfLayers, int);
71  itkGetConstReferenceMacro(NumOfLayers, int);
72 
73  itkSetMacro(NumOfWeightSets, int);
74  itkGetConstReferenceMacro(NumOfWeightSets, int);
75 #else
76  int GetNumOfLayers(void) const
77  {
78  return m_Layers.size();
79  }
80  int GetNumOfWeightSets(void) const
81  {
82  return m_Weights.size();
83  }
84 
85 #endif
86 
88  LayerInterfaceType * GetLayer(int layer_id);
89  const LayerInterfaceType * GetLayer(int layer_id) const;
90 
91  void AddWeightSet(typename LayerInterfaceType::WeightSetInterfaceType*);
93  {
94  return m_Weights[id].GetPointer();
95  }
96 #ifdef __USE_OLD_INTERFACE
97  const typename LayerInterfaceType::WeightSetInterfaceType* GetWeightSet(unsigned int id) const;
98 #endif
99 
101 
102  virtual NetworkOutputType GenerateOutput(TMeasurementVector samplevector);
103 
104  virtual void BackwardPropagate(NetworkOutputType errors);
105  virtual void UpdateWeights(ValueType);
106 
108 
109  void SetLearningRate(ValueType learningrate);
110 
111  void InitializeWeights();
112 
113 protected:
116 
121  //#define __USE_OLD_INTERFACE Comment out to ensure that new interface works
122 #ifdef __USE_OLD_INTERFACE
123  //These are completely redundant variables that can be more reliably queried from
124  // m_Layers->size() and m_Weights->size();
125  int m_NumOfLayers;
126  int m_NumOfWeightSets;
127 #endif
128 
129  virtual void PrintSelf( std::ostream& os, Indent indent ) const;
130 };
131 
132 } // end namespace Statistics
133 } // end namespace itk
134 
135 #ifndef ITK_MANUAL_INSTANTIATION
136 #include "itkMultilayerNeuralNetworkBase.hxx"
137 #endif
138 
139 #endif
140