mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
2.9 KiB
132 lines
2.9 KiB
//+-------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1997 - 1997
|
|
//
|
|
// File: bndist.h
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
//
|
|
// bndist.h: Belief Network Distributions
|
|
//
|
|
|
|
#ifndef _BNDIST_H_
|
|
#define _BNDIST_H_
|
|
|
|
#include "mddist.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// class BNDIST:
|
|
//
|
|
// Base class for probability distributions used in belief networks.
|
|
//
|
|
// This is a reference counted object which usually lives in the
|
|
// distribution map of an MBNET.
|
|
//
|
|
// However, BNDISTs are also created for various other purposes
|
|
// such as CI network expansion. In these cases, the BNDIST
|
|
// is automatically deleted when the reference count goes to zero.
|
|
// See BNDIST::NoRef().
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
class BNDIST : public REFCNT
|
|
{
|
|
friend class DSCPARSER;
|
|
public:
|
|
BNDIST ();
|
|
~ BNDIST ();
|
|
BNDIST ( const BNDIST & bnd );
|
|
|
|
enum EDIST
|
|
{
|
|
ED_NONE, // illegal value
|
|
ED_DENSE, // lowest enum value for a dense distribution
|
|
ED_SPARSE, // lowest enum value for a sparse distribution
|
|
ED_CI_MAX, // therefore, CI "max" is sparse
|
|
ED_CI_PLUS, // as is CI "plus"
|
|
ED_MAX // first unused value
|
|
};
|
|
EDIST Edist () const
|
|
{ return _edist; }
|
|
|
|
BNDIST & operator = ( const BNDIST & bnd );
|
|
|
|
// Set distribution to "dense"
|
|
void SetDense ( const VIMD & vimd );
|
|
// Set distribution to sparse
|
|
void SetSparse ( const VIMD & vimd );
|
|
|
|
static bool BDenseType ( EDIST edist )
|
|
{ return edist >= ED_DENSE && edist < ED_SPARSE ; }
|
|
static bool BSparseType ( EDIST edist )
|
|
{ return edist >= ED_SPARSE && edist < ED_MAX ; }
|
|
|
|
bool BDense () const
|
|
{ return BDenseType( Edist() ); }
|
|
bool BSparse () const
|
|
{ return BSparseType( Edist() ); }
|
|
|
|
bool BChangeSubtype ( EDIST edist );
|
|
|
|
// Convert a dense representation to a sparse one
|
|
void ConvertToDense ( const VIMD & vimd );
|
|
|
|
void Clear ()
|
|
{
|
|
delete _pmdvcpd;
|
|
_pmdvcpd = NULL;
|
|
delete _mpcpdd;
|
|
_mpcpdd = NULL;
|
|
}
|
|
|
|
MDVCPD & Mdvcpd ()
|
|
{
|
|
assert( _pmdvcpd );
|
|
return *_pmdvcpd ;
|
|
}
|
|
const MDVCPD & Mdvcpd () const
|
|
{
|
|
assert( _pmdvcpd );
|
|
return *_pmdvcpd ;
|
|
}
|
|
|
|
MPCPDD & Mpcpdd ()
|
|
{
|
|
assert( _mpcpdd );
|
|
return *_mpcpdd;
|
|
}
|
|
const MPCPDD & Mpcpdd () const
|
|
{
|
|
assert( _mpcpdd );
|
|
return *_mpcpdd;
|
|
}
|
|
const VIMD & VimdDim () const
|
|
{ return _vimdDim; }
|
|
|
|
// Return the "leak" or "default" vector for a sparse distribution
|
|
const VLREAL * PVlrLeak () const;
|
|
|
|
void Dump();
|
|
void Clone ( const BNDIST & bndist );
|
|
|
|
LEAK_VAR_ACCESSOR
|
|
|
|
protected:
|
|
EDIST _edist; // Type of distribution
|
|
MDVCPD * _pmdvcpd; // Ptr to dense m-d array
|
|
MPCPDD * _mpcpdd; // Ptr to sparse array
|
|
VIMD _vimdDim; // Dense dimensionality
|
|
|
|
// Called when object's reference count goes to zero
|
|
void NoRef ();
|
|
|
|
// Dumper functions
|
|
void DumpSparse();
|
|
void DumpDense();
|
|
|
|
LEAK_VAR_DECL
|
|
};
|
|
|
|
#endif
|