Generates a substring version of a reference translation lattice and associated vocabulary. This substring fst is typically used to guide translation towards a particular search space. The associated vocabulary can be used e.g. to restrict parsing algorithms. More...

#include <task.referencefilter.hpp>

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Public Member Functions
	ReferenceFilterTask (const ucam::util::RegistryPO &rg, const std::string &referencelatticekey=HifstConstants::kReferencefilterNosubstringStore)
	Constructor. More...

bool	getDisableSubString (void)

bool	getBuilt (void)

float	getWeight (void)

unsigned	getShortestPath (void)

const unordered_set< std::string > &	getVocabulary ()

const std::string	getTranslationLatticeFile ()

	~ReferenceFilterTask ()
	Destructor. More...

void	prune ()
	Filters the reference lattice using either shortestpath, weighted determinization or both (union). More...

void	reduce ()
	Removes weights and reduces the reference lattice with determinization and minimization. More...

void	build (const std::string &file)
	Given an fst file, builds the unweighted substring transducer. More...

void	unload (void)
	Clean up fsts... More...

void	write (Data &d)
	Write reference substring lattice to [file]. More...

bool	run (Data &d)
	Runs... Load substring lattice and add pointer in data object. More...

Public Member Functions inherited from ucam::util::TaskInterface< Data >
	TaskInterface ()
	Constructor. More...

virtual	~TaskInterface ()

bool	chainrun (Data &d)
	Implements chain of responsability. Calls run method and, if there is another task, call its run method too. More...

bool	operator() (Data &d)

TaskInterface &	appendTask (TaskInterface *t)
	Appends a task class. If there is no task, append here, otherwise delegate in next task. More...

TaskInterface &	operator() (TaskInterface *t)

TaskInterface *	getTask ()
	Return appended task. More...

TaskInterface *	next ()

Static Public Member Functions
static ReferenceFilterTask *	init (const ucam::util::RegistryPO &rg, const std::string &referenceloadkey=HifstConstants::kReferencefilterLoad, const std::string &referencelatticekey=HifstConstants::kReferencefilterNosubstringStore)
	Static constructor, returns NULL if the substring lattice is not needed (e.g. hifst not in alignment mode) More...

Detailed Description

template<class Data, class Arc = fst::LexStdArc>
class ucam::hifst::ReferenceFilterTask< Data, Arc >

Generates a substring version of a reference translation lattice and associated vocabulary. This substring fst is typically used to guide translation towards a particular search space. The associated vocabulary can be used e.g. to restrict parsing algorithms.

Definition at line 33 of file task.referencefilter.hpp.

Constructor & Destructor Documentation

template<class Data, class Arc = fst::LexStdArc>

ucam::hifst::ReferenceFilterTask< Data, Arc >::ReferenceFilterTask	(	const ucam::util::RegistryPO &	rg,
		const std::string &	referencelatticekey = `HifstConstants::kReferencefilterNosubstringStore`
	)

inline

Constructor.

Parameters

rg	RegistryPO object containing parsed command-line/config-file variables.
referencelatticekey	key to access the reference lattice file name in registry object (for storing)

Definition at line 81 of file task.referencefilter.hpp.

template<class Data, class Arc = fst::LexStdArc>

ucam::hifst::ReferenceFilterTask< Data, Arc >::~ReferenceFilterTask ( )

inline

Destructor.

Definition at line 130 of file task.referencefilter.hpp.

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Member Function Documentation

template<class Data, class Arc = fst::LexStdArc>

void ucam::hifst::ReferenceFilterTask< Data, Arc >::build ( const std::string & file )

inline

Given an fst file, builds the unweighted substring transducer.

Remarks: The lattice can be previously shortestpath-ed or pruned. It will be determinized too

Parameters

file	Lattice file name (openfst file expected).

Definition at line 192 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

bool ucam::hifst::ReferenceFilterTask< Data, Arc >::getBuilt ( void )

inline

Definition at line 113 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

bool ucam::hifst::ReferenceFilterTask< Data, Arc >::getDisableSubString ( void )

inline

Definition at line 110 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

unsigned ucam::hifst::ReferenceFilterTask< Data, Arc >::getShortestPath ( void )

inline

Definition at line 119 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

const std::string ucam::hifst::ReferenceFilterTask< Data, Arc >::getTranslationLatticeFile ( )

inline

Definition at line 125 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

const unordered_set<std::string>& ucam::hifst::ReferenceFilterTask< Data, Arc >::getVocabulary ( )

inline

Definition at line 122 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

float ucam::hifst::ReferenceFilterTask< Data, Arc >::getWeight ( void )

inline

Definition at line 116 of file task.referencefilter.hpp.

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template<class Data, class Arc = fst::LexStdArc>

static ReferenceFilterTask* ucam::hifst::ReferenceFilterTask< Data, Arc >::init	(	const ucam::util::RegistryPO &	rg,
		const std::string &	referenceloadkey = `HifstConstants::kReferencefilterLoad`,
		const std::string &	referencelatticekey = `HifstConstants::kReferencefilterNosubstringStore`
	)