org.jscience.ml.tigerxml
Class NT

java.lang.Object
  org.jscience.ml.tigerxml.GraphNode
      org.jscience.ml.tigerxml.NT

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

VRoot

public class NT
extends GraphNode

Represents a non-terminal node a syntax tree.

See Also:

GraphNode, Serialized Form

Field Summary

Fields inherited from class org.jscience.ml.tigerxml.GraphNode

verbosity

Constructor Summary

NT()
Creates an empty NT setting all member variables to null or empty.

NT(org.w3c.dom.Element ntElement, Sentence sent)

NT(org.w3c.dom.Element ntElement, Sentence sent, int verbosity)

Method Summary

void	addDaughter(GraphNode newDaughter) Adds a daughter.
void	addSecDaughter(GraphNode newDaughter) Adds a secondary daughter.
java.util.ArrayList	getAllDaughters() Returns an ArrayList of all daughters, primary as well as secondary, ordered left to right according to linear precedence.
java.util.ArrayList	getAllDaughtersByLabel(java.lang.String edgelabel) Returns an ArrayList of all the daughter nodes, primary as well as secondary ones, with a given edge label.
java.util.ArrayList	getAllDescendants() Returns an ArrayList of all descendant nodes, primary as well as secondary ones, of this node.
java.util.ArrayList	getAllDescendantsByLabel(java.lang.String edgelabel) Returns an ArrayList of all descendant nodes, primary as well as secondary ones, with a given edge label.
java.lang.String	getCat() Returns the category of this NT
java.util.ArrayList	getDaughters() Returns an ArrayList of the daughter nodes ordered left to right according to linear precedence.
java.util.ArrayList	getDaughtersByLabel(java.lang.String edgelabel) Returns an ArrayList of the daughter nodes with a given edge label.
java.util.ArrayList	getDescendants() Returns an ArrayList of the descendant nodes of this node.
java.util.ArrayList	getDescendantsByLabel(java.lang.String edgelabel) Returns an ArrayList of the descendant nodes with a given edge label.
java.util.ArrayList	getSecDaughters() Returns an ArrayList of the secondary daughter nodes ordered left to right according to linear precedence.
java.lang.String	getSpan() Returns the span (the list of terminal node IDs).
java.util.ArrayList	getTerminals() Returns all terminal daughters recursively.
java.lang.String	getText() Returns the surface of this NT - the String consisting of all terminals underneath this node.
java.lang.String	getWords() Returns the surface of this NT - the String consisting of all terminals underneath this node.
boolean	hasSecDaughters() Returns true if this node has secondary daughters.
protected void	print2Xml(java.io.FileWriter out_xml)
void	setCat(java.lang.String newcat) Sets the category of this NT

Methods inherited from class org.jscience.ml.tigerxml.GraphNode

before, dominates, equals, getCorpus, getDominatingNodeByCat, getEdge2Mother, getEdge2SecMother, getId, getIndex, getLeftmostTerminal, getMother, getPath, getSecMothers, getSentence, getVerbosity, hasMother, hasSecMothers, hasSurfaceWord, isDominatedBy, isDominatedBy, isTerminal, printNode, printNode, printNodeErr, printNodeErr, printTree, printTreeErr, setEdge2Mother, setId, setIndex, setMother, setSecMother, setSentence, setTerminal, setVerbosity, toNodeInfoString, toString, toTreeString

Methods inherited from class java.lang.Object

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

Constructor Detail

NT

public NT()

Creates an empty NT setting all member variables to null or empty.

NT

public NT(org.w3c.dom.Element ntElement,
          Sentence sent)

NT

public NT(org.w3c.dom.Element ntElement,
          Sentence sent,
          int verbosity)

Method Detail

addDaughter

public void addDaughter(GraphNode newDaughter)

Adds a daughter. Can by a NT, a T, or a GraphNode.

addSecDaughter

public void addSecDaughter(GraphNode newDaughter)

Adds a secondary daughter. Can be a NT, a T, or a GraphNode.

hasSecDaughters

public boolean hasSecDaughters()

Returns true if this node has secondary daughters.

setCat

public void setCat(java.lang.String newcat)

Sets the category of this NT

getCat

public java.lang.String getCat()

Returns the category of this NT

getSpan

public java.lang.String getSpan()

Returns the span (the list of terminal node IDs).

The concept "span" is taken from MMAX (http://www.eml.org/nlp). The idea is to have a compact string representation of all terminal IDs underneath this NT.

For more methods related to MMAX concepts

See Also:

SyncMMAX

getDaughters

public java.util.ArrayList getDaughters()

Returns an ArrayList of the daughter nodes ordered left to right according to linear precedence. Note that if you want to get information like POS, MORPH, or CAT you have to look up the type of each child like this: GraphNode n = someNode.getChildren().get(1); if (n.isTerminal) { fooPos = n.getPos(); }

getSecDaughters

public java.util.ArrayList getSecDaughters()

Returns an ArrayList of the secondary daughter nodes ordered left to right according to linear precedence. Note that if you want to get information like POS, MORPH, or CAT you have to look up the type of each child like this: GraphNode n = (GraphNode) someNode.getSDaughters().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getAllDaughters

public java.util.ArrayList getAllDaughters()

Returns an ArrayList of all daughters, primary as well as secondary, ordered left to right according to linear precedence. Note that if you want to get information like POS, MORPH, or CAT you have to look up the type of each child like this: GraphNode n = (GraphNode) someNode.getAllDaughters().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getTerminals

public java.util.ArrayList getTerminals()

Returns all terminal daughters recursively. The returned terminals are in the order of the sentence (linear precedence).

getWords

public java.lang.String getWords()

Returns the surface of this NT - the String consisting of all terminals underneath this node.

Returns:

The String representation (all terminal nodes' word strings).

getText

public java.lang.String getText()

Returns the surface of this NT - the String consisting of all terminals underneath this node.

Overrides:

getText in class GraphNode

Returns:

The String representation (all terminal nodes' word strings).

getDescendants

public java.util.ArrayList getDescendants()

Returns an ArrayList of the descendant nodes of this node. The descendants are ordered breadth first then left to right. Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getDescendants().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getAllDescendants

public java.util.ArrayList getAllDescendants()

Returns an ArrayList of all descendant nodes, primary as well as secondary ones, of this node. The descendants are ordered breadth first then left to right. Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getAllDescendants().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getDaughtersByLabel

public java.util.ArrayList getDaughtersByLabel(java.lang.String edgelabel)

Returns an ArrayList of the daughter nodes with a given edge label. The list is ordered left to right according to word order Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getDaughtersByLabel().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getAllDaughtersByLabel

public java.util.ArrayList getAllDaughtersByLabel(java.lang.String edgelabel)

Returns an ArrayList of all the daughter nodes, primary as well as secondary ones, with a given edge label. The list is ordered left to right according to word order Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getAllDaughtersByLabel().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getDescendantsByLabel

public java.util.ArrayList getDescendantsByLabel(java.lang.String edgelabel)

Returns an ArrayList of the descendant nodes with a given edge label. The descendants are ordered breadth first then left to right. Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getDescendantsByLabel().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

getAllDescendantsByLabel

public java.util.ArrayList getAllDescendantsByLabel(java.lang.String edgelabel)

Returns an ArrayList of all descendant nodes, primary as well as secondary ones, with a given edge label. The descendants are ordered breadth first then left to right. Note that you have to look up the type of each child like this, if you want to get information like POS, MORPH, or CAT: GraphNode n = (GraphNode) someNode.getAllDescendantsByLabel().get(1);

if (n.isTerminal()) { String fooPos = ((T)n).getPos(); }

print2Xml

protected void print2Xml(java.io.FileWriter out_xml)