joshua.decoder.DecoderThread Class Reference

Collaboration diagram for joshua.decoder.DecoderThread:

List of all members.

Public Member Functions
	DecoderThread (List< Grammar > grammars, FeatureVector weights, List< FeatureFunction > featureFunctions, JoshuaConfiguration joshuaConfiguration) throws IOException
void	run ()
Translation	translate (Sentence sentence)
Private Member Functions
Grammar	getGrammarFromHyperGraph (String goal, HyperGraph hg)
Private Attributes
final JoshuaConfiguration	joshuaConfiguration
final List< Grammar >	allGrammars
final List< FeatureFunction >	featureFunctions
Static Private Attributes
static final Logger	logger = Logger.getLogger(DecoderThread.class.getName())

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Detailed Description

This class handles decoding 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:

Matt Post post@.nosp@m.cs.j.nosp@m.hu.ed.nosp@m.u

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

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Constructor & Destructor Documentation

joshua.decoder.DecoderThread.DecoderThread	(	List< Grammar >	grammars,
		FeatureVector	weights,
		List< FeatureFunction >	featureFunctions,
		JoshuaConfiguration	joshuaConfiguration
	)		throws IOException

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Member Function Documentation

Grammar joshua.decoder.DecoderThread.getGrammarFromHyperGraph	(	String	goal,
		HyperGraph	hg
	)		[private]

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void joshua.decoder.DecoderThread.run

(

)

Translation joshua.decoder.DecoderThread.translate

(

Sentence

sentence

)

Translate a sentence.

Parameters:

sentence

The sentence to be translated.

Joshua supports (as of September 2014) both phrase-based and hierarchical decoding. Here we build the appropriate chart. The output of both systems is a hypergraph, which is then used for further processing (e.g., k-best extraction).

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Member Data Documentation

final List<Grammar> joshua.decoder.DecoderThread.allGrammars [private]

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

final JoshuaConfiguration joshua.decoder.DecoderThread.joshuaConfiguration [private]

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