dai::MaximizationStep Class Reference

A MaximizationStep groups together several parameter estimation tasks (SharedParameters objects) into a single unit. More...

#include <dai/emalg.h>

Public Member Functions
	MaximizationStep ()
	Default constructor. More...
	MaximizationStep (std::vector< SharedParameters > &maximizations)
	Construct MaximizationStep from a vector of parameter estimation tasks. More...
	MaximizationStep (std::istream &is, const FactorGraph &fg_varlookup)
	Constructor from an input stream and a corresponding factor graph. More...
void	addExpectations (InfAlg &alg)
	Collect the beliefs from this InfAlg as expectations for the next Maximization step. More...
void	maximize (FactorGraph &fg)
	Using all of the currently added expectations, make new factors with maximized parameters and set them in the FactorGraph. More...
void	clear ()
	Clear the step, to be called at the begining of each step. More...

Private Attributes
std::vector< SharedParameters >	_params
	Vector of parameter estimation tasks of which this maximization step consists. More...

Iterator interface
typedef std::vector< SharedParameters >::iterator	iterator
	Iterator over the parameter estimation tasks. More...
typedef std::vector< SharedParameters >::const_iterator	const_iterator
	Constant iterator over the parameter estimation tasks. More...
iterator	begin ()
	Returns iterator that points to the first parameter estimation task. More...
const_iterator	begin () const
	Returns constant iterator that points to the first parameter estimation task. More...
iterator	end ()
	Returns iterator that points beyond the last parameter estimation task. More...
const_iterator	end () const
	Returns constant iterator that points beyond the last parameter estimation task. More...

Detailed Description

A MaximizationStep groups together several parameter estimation tasks (SharedParameters objects) into a single unit.

Author

Charles Vaske

Member Typedef Documentation

typedef std::vector<SharedParameters>::iterator dai::MaximizationStep::iterator

Iterator over the parameter estimation tasks.

typedef std::vector<SharedParameters>::const_iterator dai::MaximizationStep::const_iterator

Constant iterator over the parameter estimation tasks.

Constructor & Destructor Documentation

dai::MaximizationStep::MaximizationStep ( )

inline

Default constructor.

dai::MaximizationStep::MaximizationStep ( std::vector< SharedParameters > &  maximizations )

inline

Construct MaximizationStep from a vector of parameter estimation tasks.

dai::MaximizationStep::MaximizationStep	(	std::istream &	is,
		const FactorGraph &	fg_varlookup
	)

Constructor from an input stream and a corresponding factor graph.

See also

Maximization Step block format

Member Function Documentation

void dai::MaximizationStep::addExpectations

(

InfAlg &

alg

)

Collect the beliefs from this InfAlg as expectations for the next Maximization step.

void dai::MaximizationStep::maximize

(

FactorGraph &

fg

)

Using all of the currently added expectations, make new factors with maximized parameters and set them in the FactorGraph.

void dai::MaximizationStep::clear

(

)

Clear the step, to be called at the begining of each step.

iterator dai::MaximizationStep::begin ( )

inline

Returns iterator that points to the first parameter estimation task.

const_iterator dai::MaximizationStep::begin ( ) const

inline

Returns constant iterator that points to the first parameter estimation task.

iterator dai::MaximizationStep::end ( )

inline

Returns iterator that points beyond the last parameter estimation task.

const_iterator dai::MaximizationStep::end ( ) const

inline

Returns constant iterator that points beyond the last parameter estimation task.

Member Data Documentation

std::vector<SharedParameters> dai::MaximizationStep::_params

private

Vector of parameter estimation tasks of which this maximization step consists.

---

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

• include/dai/emalg.h
• src/emalg.cpp