QFunctionJointBelief Class Reference

QFunctionJointBelief represents a Q-function that operates on joint beliefs. More...

#include <QFunctionJointBelief.h>

Inheritance diagram for QFunctionJointBelief:

Public Member Functions
virtual void	ComputeWithCachedQValues (bool computeIfNotCached=true)
	Compute Qvalue function, while caching the Qvalues to disk. More...
double	GetQ (Index jaohI, Index jaI) const
	Returns Q(jaohI, jaI). More...
virtual void	Load (const std::string &filename)
	Load the Qvalues from disk from a file named filename. More...
	QFunctionJointBelief (const PlanningUnitDecPOMDPDiscrete *pu)
	(default) Constructor More...
	QFunctionJointBelief (const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &pu)
virtual void	Save (const std::string &filename) const
	Stores the Qvalues to disk in file named filename. More...
virtual	~QFunctionJointBelief ()
	Destructor. More...
Public Member Functions inherited from QFunctionJointBeliefInterface
virtual double	GetQ (const JointBeliefInterface &b, Index jaI) const =0
	Returns Q(b, jaI). More...
virtual double	GetQ (const JointBeliefInterface &b, Index time_step, Index jaI) const =0
	Returns Q(b, jaI) for a particular time_step. More...
	QFunctionJointBeliefInterface ()
	(default) Constructor More...
virtual	~QFunctionJointBeliefInterface ()
	Destructor. More...
Public Member Functions inherited from QFunctionForDecPOMDPInterface
	QFunctionForDecPOMDPInterface ()
	(default) Constructor More...
virtual	~QFunctionForDecPOMDPInterface ()
	Destructor. More...
Public Member Functions inherited from QFunctionInterface
virtual void	Compute ()=0
	Compute the heuristic. More...
virtual void	Load ()
	Load the Qvalues from disk. More...
virtual void	Save () const
	Stores the Qvalues to disk. More...
virtual std::string	SoftPrintBrief () const =0
	Returns a short description of the heuristic, can be used for constructing filenames. More...
virtual	~QFunctionInterface ()
Public Member Functions inherited from QFunctionForDecPOMDP
virtual std::string	GetCacheFilename () const
	Gets the filename where the Qvalues should be stored. More...
const PlanningUnitDecPOMDPDiscrete *	GetPU () const
	QFunctionForDecPOMDP (const PlanningUnitDecPOMDPDiscrete *pu)
	(default) Constructor More...
	QFunctionForDecPOMDP (const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &pu)
void	SetPU (const PlanningUnitDecPOMDPDiscrete *pu)
void	SetPU (const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &pu)

Detailed Description

QFunctionJointBelief represents a Q-function that operates on joint beliefs.

Constructor & Destructor Documentation

QFunctionJointBelief::QFunctionJointBelief ( const PlanningUnitDecPOMDPDiscrete *  pu )

inline

(default) Constructor

QFunctionJointBelief::QFunctionJointBelief ( const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &  pu )

inline

virtual QFunctionJointBelief::~QFunctionJointBelief ( )

inlinevirtual

Destructor.

Member Function Documentation

virtual void QFunctionJointBelief::ComputeWithCachedQValues ( bool  computeIfNotCached = true )

inlinevirtual

Compute Qvalue function, while caching the Qvalues to disk.

Before computing them, the function checks whether the Qvalues have been computed before, and if so, loads them from disk. If not, it computes them, and afterwards saves them for re-use. This behavior can be changed by settings computeIfNotCached to false, in which case an Exception will be thrown if the Q function has not been previously stored on disk.

Implements QFunctionInterface.

double QFunctionJointBelief::GetQ	(	Index	jaohI,
		Index	jaI
	)		const

Returns Q(jaohI, jaI).

References PlanningUnitMADPDiscrete::GetJointBeliefInterface(), and QFunctionForDecPOMDP::GetPU().

virtual void QFunctionJointBelief::Load ( const std::string &  filename )

inlinevirtual

Load the Qvalues from disk from a file named filename.

Implements QFunctionInterface.

Reimplemented in QAV< P >, QAV< PerseusBGPlanner >, QAV< PerseusBGNSPlanner >, and QAV< PerseusPOMDPPlanner >.

virtual void QFunctionJointBelief::Save ( const std::string &  filename ) const

inlinevirtual

Stores the Qvalues to disk in file named filename.

Implements QFunctionInterface.

Reimplemented in QAV< P >, QAV< PerseusBGPlanner >, QAV< PerseusBGNSPlanner >, and QAV< PerseusPOMDPPlanner >.