edu.cmu.sphinx.result

Class Edge

java.lang.Object

edu.cmu.sphinx.result.Edge

public class Edge
extends java.lang.Object

Edges are part of Lattices. They connect Nodes, and contain the score associated with that sequence.

Field Summary

Fields

Modifier and Type	Field and Description
protected double	acousticScore
protected Node	fromNode
protected double	lmScore
protected Node	toNode

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Edge(Node fromNode, Node toNode, double acousticScore, double lmScore) Create an Edge from fromNode to toNode with acoustic and Language Model scores.

Method Summary

Modifier and Type	Method and Description
void	dumpDot(java.io.FileWriter f) Internal routine used when dumping a Lattice as an Graphviz file
double	getAcousticScore() Get the acoustic score associated with an Edge.
Node	getFromNode() Get the "from" Node associated with an Edge
double	getLMScore() Get the language model score associated with an Edge
Node	getToNode() Get the "to" Node associated with an Edge
boolean	isEquivalent(Edge other) Returns true if the given edge is equivalent to this edge.
void	setAcousticScore(double v) Sets the acoustic score
void	setLMScore(double v) Sets the language model score
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

acousticScore

protected double acousticScore

lmScore

protected double lmScore

fromNode

protected final Node fromNode

toNode

protected final Node toNode

Constructor Detail

Edge

protected Edge(Node fromNode,
               Node toNode,
               double acousticScore,
               double lmScore)

Create an Edge from fromNode to toNode with acoustic and Language Model scores.

Parameters:

fromNode - from node

toNode - to node

acousticScore - acoustic score

lmScore - langauge model score

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

dumpDot

public void dumpDot(java.io.FileWriter f)
             throws java.io.IOException

Internal routine used when dumping a Lattice as an Graphviz file

Parameters:

f - file writer

Throws:

java.io.IOException - if error occured

getAcousticScore

public double getAcousticScore()

Get the acoustic score associated with an Edge. This is the acoustic score of the word that this edge is transitioning to, that is, the word represented by the node returned by the getToNode() method.

Returns:

the acoustic score of the word this edge is transitioning to

getLMScore

public double getLMScore()

Get the language model score associated with an Edge

Returns:

the score

getFromNode

public Node getFromNode()

Get the "from" Node associated with an Edge

Returns:

the Node

getToNode

public Node getToNode()

Get the "to" Node associated with an Edge

Returns:

the Node

setAcousticScore

public void setAcousticScore(double v)

Sets the acoustic score

Parameters:

v - the acoustic score.

setLMScore

public void setLMScore(double v)

Sets the language model score

Parameters:

v - the lm score.

isEquivalent

public boolean isEquivalent(Edge other)

Returns true if the given edge is equivalent to this edge. Two edges are equivalent only if they have their 'fromNode' and 'toNode' are equivalent, and that their acoustic and language scores are the same.

Parameters:

other - the Edge to compare this Edge against

Returns:

true if the Edges are equivalent; false otherwise