GClasses::GSparseSimilarity Class Reference

The base class for similarity metrics that operate on sparse vectors. More...

#include <GDistance.h>

Inheritance diagram for GClasses::GSparseSimilarity:

Public Member Functions
	GSparseSimilarity ()
virtual	~GSparseSimilarity ()
virtual GDomNode *	serialize (GDom *pDoc) const =0
	Marshal this object into a DOM, which can then be converted to a variety of serial formats. More...
void	setRegularizer (double d)
	Set a regularizing term to add to the denominator. More...
virtual double	similarity (const std::map< size_t, double > &a, const std::map< size_t, double > &b, size_t &count=_dummy_var)=0
	Computes the similarity between two sparse vectors. More...
virtual double	similarity (const std::map< size_t, double > &a, const double *pB, size_t &count=_dummy_var)=0
	Computes the similarity between a sparse and a dense vector. More...

Static Public Member Functions
static GSparseSimilarity *	deserialize (GDomNode *pNode)
	Load from a DOM. More...

Protected Member Functions
GDomNode *	baseDomNode (GDom *pDoc, const char *szClassName) const
	A helper method used internally. More...

Protected Attributes
double	m_regularizer

Detailed Description

The base class for similarity metrics that operate on sparse vectors.

Constructor & Destructor Documentation

GClasses::GSparseSimilarity::GSparseSimilarity ( )

inline

virtual GClasses::GSparseSimilarity::~GSparseSimilarity ( )

inlinevirtual

Member Function Documentation

GDomNode* GClasses::GSparseSimilarity::baseDomNode ( GDom *  pDoc, const char *  szClassName  ) const

protected

A helper method used internally.

static GSparseSimilarity* GClasses::GSparseSimilarity::deserialize ( GDomNode *  pNode )

static

Load from a DOM.

virtual GDomNode* GClasses::GSparseSimilarity::serialize ( GDom *  pDoc ) const

pure virtual

Marshal this object into a DOM, which can then be converted to a variety of serial formats.

Implemented in GClasses::GEulcidSimilarity, GClasses::GPearsonCorrelation, and GClasses::GCosineSimilarity.

void GClasses::GSparseSimilarity::setRegularizer ( double  d )

inline

Set a regularizing term to add to the denominator.

virtual double GClasses::GSparseSimilarity::similarity ( const std::map< size_t, double > &  a, const std::map< size_t, double > &  b, size_t &  count = _dummy_var  )

pure virtual

Computes the similarity between two sparse vectors.

Implemented in GClasses::GEulcidSimilarity, GClasses::GPearsonCorrelation, and GClasses::GCosineSimilarity.

virtual double GClasses::GSparseSimilarity::similarity ( const std::map< size_t, double > &  a, const double *  pB, size_t &  count = _dummy_var  )

pure virtual

Computes the similarity between a sparse and a dense vector.

Implemented in GClasses::GEulcidSimilarity, GClasses::GPearsonCorrelation, and GClasses::GCosineSimilarity.

Member Data Documentation

double GClasses::GSparseSimilarity::m_regularizer

protected