DirectGraphicalModels::CInferExact Class Reference

Exact inference class. More...

#include <InferExact.h>

Inheritance diagram for DirectGraphicalModels::CInferExact:

Collaboration diagram for DirectGraphicalModels::CInferExact:

Public Member Functions
	CInferExact (CGraph *pGraph)
	Constructor. More...
virtual	~CInferExact (void)
virtual void	infer (unsigned int nIt=0)
	Exact inference. More...
Public Member Functions inherited from DirectGraphicalModels::CInfer
	CInfer (CGraph *pGraph)
	Constructor. More...
virtual	~CInfer (void)
virtual vec_byte_t	decode (unsigned int nIt=0, Mat &lossMatrix=Mat())
	Approximate decoding. More...
vec_float_t	getConfidence (void) const
	Returns the confidence of the prediction. More...
vec_float_t	getPotentials (byte state) const
	Returns the potnetials for the selected state (class) More...

Additional Inherited Members
Protected Member Functions inherited from DirectGraphicalModels::CDecode
	CDecode (CGraph *pGraph)
	Constructor. More...
void	setState (vec_byte_t &state, qword configuration) const
	Sets the state according to the configuration index configuration. More...
void	incState (vec_byte_t &state) const
	Increases the state by one, i.e. switches the state array to the consequent configuration. More...
vec_float_t	calculatePotentials (void) const
	Calculates potentials for all possible configurations. More...
virtual	~CDecode (void)
virtual vec_byte_t	decode (unsigned int nIt=0, Mat &lossMatrix=Mat()) const
	Approximate decoding. More...
Static Protected Member Functions inherited from DirectGraphicalModels::CDecode
static vec_byte_t	decode (const CGraph *pGraph, Mat &lossMatrix=Mat())
	Approximate decoding. More...
static Mat	getDefaultLossMatrix (byte nStates)
	Returns a default loss matrix \(L\). More...
Protected Attributes inherited from DirectGraphicalModels::CDecode
CGraph *	m_pGraph
	Pointer to the graph. More...

Detailed Description

Exact inference class.

Note

Use this class only if \( nStates^{nNodes} < 2^{32}\)

Author

Sergey G. Kosov, serge.nosp@m.y.ko.nosp@m.sov@p.nosp@m.roje.nosp@m.ct-10.nosp@m..de

Definition at line 16 of file InferExact.h.

Constructor & Destructor Documentation

DirectGraphicalModels::CInferExact::CInferExact ( CGraph *  pGraph )

inline

Constructor.

Parameters

pGraph

The graph

Definition at line 23 of file InferExact.h.

virtual DirectGraphicalModels::CInferExact::~CInferExact ( void  )

inlinevirtual

Definition at line 24 of file InferExact.h.

Member Function Documentation

void DirectGraphicalModels::CInferExact::infer ( unsigned int  nIt = 0 )

virtual

Exact inference.

This function estimates the most likely configuration, based on the marginal probabilities (potentials) in graph nodes, which in general is NOT the same as the set of most likely states. It means the following:

using namespace DirectGraphicalModels;
CGraph  * graph   = new CGraph(nStates);
CInfer  * inferer = new CInferExact(graph);
CDecode * decoder = new CDecodeExact(graph);
inferer->decode() == decoder->decode();     // This statement is not always true!

Parameters

nIt	is not used

Note

This function changes the graph nodes' potentials

Implements DirectGraphicalModels::CInfer.

Definition at line 7 of file InferExact.cpp.

Here is the call graph for this function:

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The documentation for this class was generated from the following files:

• D:/Projects/DGM/modules/DGM/InferExact.h
• D:/Projects/DGM/modules/DGM/InferExact.cpp