probfd::algorithms::SuccessorSampler< typename > Class Template Reference

#include "probfd/algorithms/successor_sampler.h"

Description

template<typename>
class probfd::algorithms::SuccessorSampler< typename >

An interface used to sample a state from a successor distribution.

Used by sample-based heuristic search algorithms like LRTDP.

Template Parameters

Action

- The action type of the underlying MDP model.

Public Member Functions
virtual StateID	sample (StateID state, Action action, const Distribution< StateID > &successor_dist, StateProperties &properties)=0
	Samples a successor from the successor distribution of a transition.
virtual void	print_statistics (std::ostream &) const
	Prints statistics, e.g. the number of queries made to the interface.

Member Function Documentation

sample()

template<typename >

virtual StateID probfd::algorithms::SuccessorSampler< typename >::sample ( StateID state, Action action, const Distribution< StateID > & successor_dist, StateProperties & properties )

pure virtual

Samples a successor from the successor distribution of a transition.

Parameters

state	- The source state of the transition.
action	- The action of the transition.
successor_dist	- The successor distribution of the transition.
properties	- The interface to the heuristic search algorithm. Can be used to query additional information about the involved states and actions.

print_statistics()

template<typename >

virtual void probfd::algorithms::SuccessorSampler< typename >::print_statistics ( std::ostream & ) const

inlinevirtual

Prints statistics, e.g. the number of queries made to the interface.