joshua.decoder.hypergraph.ViterbiExtractor Class Reference

List of all members.

Static Public Member Functions
static String	extractViterbiString (HGNode node)
static HyperGraph	getViterbiTreeHG (HyperGraph hg_in)
static void	walk (HGNode node, WalkerFunction walker)
Static Private Member Functions
static void	get1bestTreeNode (HGNode it)
static HGNode	cloneNodeWithBestHyperedge (HGNode inNode)
static HyperEdge	cloneHyperedge (HyperEdge inEdge)

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Detailed Description

Author:

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

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

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Member Function Documentation

static HyperEdge joshua.decoder.hypergraph.ViterbiExtractor.cloneHyperedge

(

HyperEdge

inEdge

)

[static, private]

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static HGNode joshua.decoder.hypergraph.ViterbiExtractor.cloneNodeWithBestHyperedge

(

HGNode

inNode

)

[static, private]

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static String joshua.decoder.hypergraph.ViterbiExtractor.extractViterbiString

(

HGNode

node

)

[static]

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static void joshua.decoder.hypergraph.ViterbiExtractor.get1bestTreeNode

(

HGNode

it

)

[static, private]

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static HyperGraph joshua.decoder.hypergraph.ViterbiExtractor.getViterbiTreeHG

(

HyperGraph

hg_in

)

[static]

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static void joshua.decoder.hypergraph.ViterbiExtractor.walk	(	HGNode	node,
		WalkerFunction	walker
	)		[static]

This function recursively visits the nodes of the Viterbi derivation in a depth-first traversal, applying the walker to each of the nodes. It provides a more general framework for implementing operations on a tree.

Parameters:

node	the node to start traversal from
walker	an implementation of the ViterbieWalker interface, to be applied to each node in the tree

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