joshua.decoder.ParserThread Class Reference

Collaboration diagram for joshua.decoder.ParserThread:

List of all members.

Public Member Functions
	ParserThread (List< GrammarFactory > grammarFactories, List< FeatureFunction > featureFunctions, List< StateComputer > stateComputers, InputHandler inputHandler) throws IOException
void	run ()
void	parseAll () throws IOException
HyperGraph	parse (Sentence sentence, String oracleSentence) throws IOException
Package Attributes
DiskHyperGraph	hypergraphSerializer
Static Private Member Functions
static Grammar	getGrammarFromHyperGraph (String goal, HyperGraph hg) throws IOException
Private Attributes
final List< GrammarFactory >	grammarFactories
final List< FeatureFunction >	featureFunctions
final List< StateComputer >	stateComputers
final InputHandler	inputHandler
BufferedWriter	nbestWriter
final KBestExtractor	kbestExtractor
Static Private Attributes
static final Logger	logger = Logger.getLogger(ParserThread.class.getName())

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Detailed Description

This class handles parsing of individual Sentence objects (which can represent plain sentences or lattices). A single sentence can be decoded by a call to translate() and, if an InputHandler is used, many sentences can be decoded in a thread-safe manner via a single call to translateAll(), which continually queries the InputHandler for sentences until they have all been consumed and translated.

The DecoderFactory class is responsible for launching the threads.

Author:

Jonny Weese jonny.nosp@m.@cs..nosp@m.jhu.e.nosp@m.du

Matt Post post@.nosp@m.jhu..nosp@m.edu

Zhifei Li, zhife.nosp@m.i.wo.nosp@m.rk@gm.nosp@m.ail..nosp@m.com

Version:

LastChangedDate:

2010-05-02 11:19:17 -0400 (Sun, 02 May 2010)

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Constructor & Destructor Documentation

joshua.decoder.ParserThread.ParserThread	(	List< GrammarFactory >	grammarFactories,
		List< FeatureFunction >	featureFunctions,
		List< StateComputer >	stateComputers,
		InputHandler	inputHandler
	)		throws IOException

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Member Function Documentation

static Grammar joshua.decoder.ParserThread.getGrammarFromHyperGraph	(	String	goal,
		HyperGraph	hg
	)		throws IOException [static, private]

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HyperGraph joshua.decoder.ParserThread.parse	(	Sentence	sentence,
		String	oracleSentence
	)		throws IOException

Parse a sentence.

Parameters:

segment	The sentence to be parsed.
oracleSentence

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void joshua.decoder.ParserThread.parseAll

(

)

throws IOException

Repeatedly fetches input sentences and calls translate() on them, registering the results with the InputManager upon completion.

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void joshua.decoder.ParserThread.run

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Member Data Documentation

final List<FeatureFunction> joshua.decoder.ParserThread.featureFunctions [private]

final List<GrammarFactory> joshua.decoder.ParserThread.grammarFactories [private]

DiskHyperGraph joshua.decoder.ParserThread.hypergraphSerializer [package]

final InputHandler joshua.decoder.ParserThread.inputHandler [private]

final KBestExtractor joshua.decoder.ParserThread.kbestExtractor [private]

final Logger joshua.decoder.ParserThread.logger = Logger.getLogger(ParserThread.class.getName()) [static, private]

BufferedWriter joshua.decoder.ParserThread.nbestWriter [private]

final List<StateComputer> joshua.decoder.ParserThread.stateComputers [private]