itkQuickPropLearningRule.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkQuickPropLearningRule_h
#define __itkQuickPropLearningRule_h

#include <iostream>
#include "itkLearningFunctionBase.h"

namespace itk
{
namespace Statistics
{
template<class LayerType, class TTargetVector>
class QuickPropLearningRule : public LearningFunctionBase<LayerType, TTargetVector>
{
public:

  typedef QuickPropLearningRule                          Self;
  typedef LearningFunctionBase<LayerType, TTargetVector> Superclass;
  typedef SmartPointer<Self>                             Pointer;
  typedef SmartPointer<const Self>                       ConstPointer;

  itkTypeMacro(QuickPropLearningRule, LearningFunctionBase);

  itkNewMacro(Self);

  typedef typename Superclass::ValueType ValueType;
  virtual void Learn(LayerType* layer, ValueType learningrate);
  virtual void Learn(LayerType* layer, TTargetVector errors, ValueType learningrate);

  itkSetMacro(Max_Growth_Factor, ValueType);
  itkGetConstReferenceMacro(Max_Growth_Factor,ValueType);

  itkSetMacro(Decay, ValueType);
  itkGetConstReferenceMacro(Decay,ValueType);

protected:
  QuickPropLearningRule();
  virtual ~QuickPropLearningRule(){};

  ValueType m_Momentum;
  ValueType m_Max_Growth_Factor;
  ValueType m_Decay;
  ValueType m_Threshold;
  ValueType m_Epsilon;
  ValueType m_SigmoidPrimeOffset;
  ValueType m_SplitEpsilon;

  virtual void PrintSelf( std::ostream& os, Indent indent ) const;
};

} // end namespace Statistics
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
  #include "itkQuickPropLearningRule.hxx"
#endif

#endif