Computes an upper bound for general edit costs. More...

#include <bp_beam.hpp>

Inheritance diagram for ged::BPBeam< UserNodeLabel, UserEdgeLabel >:

Private Member Functions
virtual void	ls_run_from_initial_solution_ (const GEDGraph &g, const GEDGraph &h, double lower_bound, const NodeMap &initial_node_map, NodeMap &output_node_map) final
	Runs the local search from an initial node map. More...

virtual void	ls_set_default_options_ () final
	Sets all options that are not among the ones shared by all derived classes of ged::LSBasedMethod to default values. More...

virtual bool	ls_parse_option_ (const std::string &option, const std::string &arg) final
	Parses one option that is not among the ones shared by all derived classes of ged::LSBasedMethod. More...

virtual std::string	ls_valid_options_string_ () const final
	Returns string of all valid options that are not among the ones shared by all derived classes of ged::LSBasedMethod. More...

Additional Inherited Members
Public Member Functions inherited from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >
virtual	~LSBasedMethod ()=0
	Pure virtual destructor. More...

	LSBasedMethod (const GEDData< UserNodeLabel, UserEdgeLabel > &ged_data)
	Constructor. More...

Public Member Functions inherited from ged::GEDMethod< UserNodeLabel, UserEdgeLabel >
virtual	~GEDMethod ()=0
	Pure virtual destructor. More...

	GEDMethod (const GEDData< UserNodeLabel, UserEdgeLabel > &ged_data)
	Constructor. More...

void	set_options (const std::string &options)
	Sets the options of the method. More...

void	run (GEDGraph::GraphID g_id, GEDGraph::GraphID h_id)
	Runs the method with options specified by set_options(). More...

void	run_as_util (const GEDGraph &g, const GEDGraph &h, Result &result)
	Runs the method with options specified by set_options(). More...

void	init ()
	Initializes the method with options specified by set_options().

double	get_upper_bound () const
	Returns an upper bound. More...

double	get_lower_bound () const
	Returns a lower bound. More...

Seconds	get_runtime () const
	Returns the runtime. More...

Seconds	get_init_time () const
	Returns the initialization time. More...

const NodeMap &	get_node_map () const
	Returns a graph matching. More...

Protected Attributes inherited from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >
std::size_t	num_threads_
	The number of threads to be used.

Protected Attributes inherited from ged::GEDMethod< UserNodeLabel, UserEdgeLabel >
bool	initialized_
	A flag that equals true if init() has been called and false otherwise.

const GEDData< UserNodeLabel, UserEdgeLabel > &	ged_data_
	The data on which the method is run.

Detailed Description

template<class UserNodeLabel, class UserEdgeLabel>
class ged::BPBeam< UserNodeLabel, UserEdgeLabel >

Computes an upper bound for general edit costs.

Implements the methods BP-Beam suggested in:

K. Riesen, A. Fischer, and H. Bunke: “Combining bipartite graph matching and beam search for graph edit distance approximation”, https://doi.org/10.1007/978-3-319-11656-3_11,

the extension IBP-Beam suggested in:

M. Ferrer, F. Serratosa, and K. Riesen: “A first step towards exact graph edit distance using bipartite graph matching”, https://doi.org/10.1007/978-3-319-18224-7_8,

Supports the following options in addition to the ones supported by ged::LSBasedMethod:

`--<option> <arg>`	modified parameter	default	more information
`--beam-size <convertible to int greater 0>`	the size of the priority queue used by the beam search	`5`	https://doi.org/10.1007/978-3-319-11656-3_11
`--num-orderings <convertible to int greater 0>`	the number of orderings	`1`	https://doi.org/10.1007/978-3-319-18224-7_8 if greater 1, IBP-Beam is used

Definition at line 52 of file bp_beam.hpp.

Member Function Documentation

◆ ls_parse_option_()

template<class UserNodeLabel , class UserEdgeLabel >

bool ged::BPBeam< UserNodeLabel, UserEdgeLabel >::ls_parse_option_	(	const std::string &	option,
		const std::string &	arg
	)

finalprivatevirtual

Parses one option that is not among the ones shared by all derived classes of ged::LSBasedMethod.

Parameters

[in]	option	The name of the option.
[in]	arg	The argument of the option.

Returns: Returns true if option is a valid option name for the method and false otherwise.

Note: Must be overridden by derived classes of ged::LSBasedMethod that have options that are not among the ones shared by all derived classes of ged::LSBasedMethod.

Reimplemented from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >.

Definition at line 105 of file bp_beam.ipp.

◆ ls_run_from_initial_solution_()

template<class UserNodeLabel , class UserEdgeLabel >

void ged::BPBeam< UserNodeLabel, UserEdgeLabel >::ls_run_from_initial_solution_	(	const GEDGraph &	g,
		const GEDGraph &	h,
		double	lower_bound,
		const NodeMap &	initial_node_map,
		NodeMap &	output_node_map
	)

finalprivatevirtual

Runs the local search from an initial node map.

Parameters

[in]	g	Input graph.
[in]	h	Input graph.
[in]	lower_bound	A lower bound for GED which can be used as a termination criterion.
[in]	initial_node_map	Initial node map.
[out]	output_node_map	Node map constructed by local search.

Note: Must be overridden by derived classes of ged::LSBasedMethod.

Reimplemented from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >.

Definition at line 48 of file bp_beam.ipp.

◆ ls_set_default_options_()

template<class UserNodeLabel , class UserEdgeLabel >

void ged::BPBeam< UserNodeLabel, UserEdgeLabel >::ls_set_default_options_ ( )

finalprivatevirtual

Sets all options that are not among the ones shared by all derived classes of ged::LSBasedMethod to default values.

Note: Must be overridden by derived classes of ged::LSBasedMethod that have options that are not among the ones shared by all derived classes of ged::LSBasedMethod.

Reimplemented from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >.

Definition at line 97 of file bp_beam.ipp.

◆ ls_valid_options_string_()

template<class UserNodeLabel , class UserEdgeLabel >

std::string ged::BPBeam< UserNodeLabel, UserEdgeLabel >::ls_valid_options_string_ ( ) const

finalprivatevirtual

Returns string of all valid options that are not among the ones shared by all derived classes of ged::LSBasedMethod.

Returns: String of the form "[--<option> <arg>] [...]".

Note: Must be overridden by derived classes of ged::LSBasedMethod that have options that are not among the ones shared by all derived classes of ged::LSBasedMethod.

Reimplemented from ged::LSBasedMethod< UserNodeLabel, UserEdgeLabel >.

Definition at line 138 of file bp_beam.ipp.

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

src/methods/bp_beam.hpp
src/methods/bp_beam.ipp

Private Member Functions

Additional Inherited Members

Detailed Description

template<class UserNodeLabel, class UserEdgeLabel> class ged::BPBeam< UserNodeLabel, UserEdgeLabel >

Member Function Documentation

◆ ls_parse_option_()

◆ ls_run_from_initial_solution_()

◆ ls_set_default_options_()

◆ ls_valid_options_string_()

template<class UserNodeLabel, class UserEdgeLabel>
class ged::BPBeam< UserNodeLabel, UserEdgeLabel >