joshua.decoder.hypergraph.HyperEdge Class Reference

Inheritance diagram for joshua.decoder.hypergraph.HyperEdge:

Collaboration diagram for joshua.decoder.hypergraph.HyperEdge:

List of all members.

Public Member Functions
	HyperEdge (Rule rule, double bestDerivationLogP, Double transitionLogP, List< HGNode > antNodes, SourcePath srcPath)
Rule	getRule ()
SourcePath	getSourcePath ()
List< HGNode >	getAntNodes ()
double	getTransitionLogP (boolean forceCompute)
void	setTransitionLogP (double transitionLogP)
Public Attributes
double	bestDerivationLogP = Double.NEGATIVE_INFINITY
Private Attributes
Double	transitionLogP = null
Rule	rule
SourcePath	srcPath = null
List< HGNode >	antNodes = null

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Detailed Description

this class implement Hyperedge

Author:

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

Version:

$LastChangedDate$

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Constructor & Destructor Documentation

joshua.decoder.hypergraph.HyperEdge.HyperEdge	(	Rule	rule,
		double	bestDerivationLogP,
		Double	transitionLogP,
		List< HGNode >	antNodes,
		SourcePath	srcPath
	)

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Member Function Documentation

List<HGNode> joshua.decoder.hypergraph.HyperEdge.getAntNodes

(

)

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Rule joshua.decoder.hypergraph.HyperEdge.getRule

(

)

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SourcePath joshua.decoder.hypergraph.HyperEdge.getSourcePath

(

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double joshua.decoder.hypergraph.HyperEdge.getTransitionLogP

(

boolean

forceCompute

)

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void joshua.decoder.hypergraph.HyperEdge.setTransitionLogP

(

double

transitionLogP

)

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Member Data Documentation

List<HGNode> joshua.decoder.hypergraph.HyperEdge.antNodes = null [private]

If antNodes is null, then this edge corresponds to a rule with zero arity. Aslo, the nodes appear in the list as per the index of the Foreign side non-terminal

double joshua.decoder.hypergraph.HyperEdge.bestDerivationLogP = Double.NEGATIVE_INFINITY

the 1-best logP of all possible derivations: best logP of ant hgnodes + transitionlogP

Rule joshua.decoder.hypergraph.HyperEdge.rule [private]

SourcePath joshua.decoder.hypergraph.HyperEdge.srcPath = null [private]

Double joshua.decoder.hypergraph.HyperEdge.transitionLogP = null [private]

this remembers the stateless + non_stateless logP assocated with the rule (excluding the best-logP from ant nodes)