iisfix.h

Amis - A maximum entropy estimator 一个最大熵模型统计工具

//////////////////////////////////////////////////////////////////////
///
///  Copyright (c) 2000, Yusuke Miyao
///  You may distribute under the terms of the Artistic License.
///
///  <id>$Id: IISFix.h,v 1.2 2003/05/11 18:12:09 yusuke Exp $</id>
///  <collection>Maximum Entropy Estimator</collection>
///  <name>IISFix.h</name>
///  <overview>Optimized implementation of Improved Iterative Scaling
///            for fixed targets</overview>
///
//////////////////////////////////////////////////////////////////////

#ifndef Amis_IISFix_h_

#define Amis_IISFix_h_

#include <amis/configure.h>
#include <amis/IIS.h>
#include <amis/EventFixSpace.h>
//#include <amis/EventSpaceKernel.h>
//#include <amis/ModelExpectFix.h>
//#include <amis/ModelExpectFixKernel.h>

AMIS_NAMESPACE_BEGIN

//////////////////////////////////////////////////////////////////////

template < class Feature, class FeatureFreqArray >
class IISFix 
: public IISBase< ModelFixBase,
		  EventFixSpaceBase< Feature >,
		  FeatureFreqArray > {
public:
  IISFix( int m = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISBase< ModelFixBase, EventFixSpaceBase< Feature >, FeatureFreqArray >( m ) {}
  IISFix( ModelFixBase& init_model, 
          EventFixSpaceBase< Feature >& init_event, 
	  int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISBase< ModelFixBase, EventFixSpaceBase< Feature >, FeatureFreqArray >( init_model, init_event, max ) {}
  virtual ~IISFix() {}

  const std::string estimatorName( void ) const {
    return "IISFix<" + Feature::featureTypeName() + "," + FeatureFreqArray::featureFreqArrayName() + ">";
  }
  /// Get the name of this class
};

template < class Feature >
class IISFixHash : public IISFix< Feature, FeatureFreqMap< Feature > > {
public:
  IISFixHash( int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< Feature, FeatureFreqMap< Feature > >( max ) {}
  IISFixHash( ModelFixBase& m, EventFixSpaceBase< Feature >& e, int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< Feature, FeatureFreqMap< Feature > >( m, e, max ) {}
  virtual ~IISFixHash() {}
};
template < class Feature >
class IISFixVector : public IISFix< Feature, FeatureFreqVector< Feature > > {
public:
  IISFixVector( int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< Feature, FeatureFreqVector< Feature > >( max ) {}
  IISFixVector( ModelFixBase& m, EventFixSpaceBase< Feature >& e, int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< Feature, FeatureFreqVector< Feature > >( m, e, max ) {}
  virtual ~IISFixVector() {}
};
template <>
class IISFixVector< RealFeature > : public IISFix< RealFeature, FeatureFreqMap< RealFeature > > {
public:
  IISFixVector( int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< RealFeature, FeatureFreqMap< RealFeature > >( max ) {}
  IISFixVector( ModelFixBase& m, EventFixSpaceBase< RealFeature >& e, int max = DEFAULT_MAX_NEWTON_ITERATIONS )
    : IISFix< RealFeature, FeatureFreqMap< RealFeature > >( m, e, max ) {}
  virtual ~IISFixVector() {}
};

AMIS_NAMESPACE_END

#endif // Amis_IISFix_h_
// end of IISFix.h