edu.stanford.nlp.trees.international.french
Class FrenchTreeNormalizer

java.lang.Object
  edu.stanford.nlp.trees.TreeNormalizer
      edu.stanford.nlp.trees.BobChrisTreeNormalizer
          edu.stanford.nlp.trees.international.french.FrenchTreeNormalizer

All Implemented Interfaces:

TreeTransformer, java.io.Serializable

public class FrenchTreeNormalizer
extends BobChrisTreeNormalizer

Prepares French Treebank trees for parsing.

Author:

Spence Green

See Also:

Serialized Form

Nested Class Summary

static class

FrenchTreeNormalizer.FrenchAOverAFilter

Nested classes/interfaces inherited from class edu.stanford.nlp.trees.BobChrisTreeNormalizer

BobChrisTreeNormalizer.AOverAFilter, BobChrisTreeNormalizer.EmptyFilter

Field Summary

Fields inherited from class edu.stanford.nlp.trees.BobChrisTreeNormalizer

aOverAFilter, emptyFilter, tlp

Constructor Summary

FrenchTreeNormalizer()

Method Summary

java.lang.String	normalizeNonterminal(java.lang.String category) Normalizes a nonterminal contents.
java.lang.String	normalizeTerminal(java.lang.String terminal) Normalizes a leaf contents.
Tree	normalizeWholeTree(Tree tree, TreeFactory tf) Normalize a whole tree -- one can assume that this is the root.

Methods inherited from class edu.stanford.nlp.trees.BobChrisTreeNormalizer

cleanUpLabel, transformTree

Methods inherited from class java.lang.Object

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

Constructor Detail

FrenchTreeNormalizer

public FrenchTreeNormalizer()

Method Detail

normalizeTerminal

public java.lang.String normalizeTerminal(java.lang.String terminal)

Description copied from class: BobChrisTreeNormalizer

Normalizes a leaf contents. This implementation interns the leaf.

Overrides:

normalizeTerminal in class BobChrisTreeNormalizer

Parameters:

terminal - The String that decorates the leaf

Returns:

The normalized form of this leaf String

normalizeNonterminal

public java.lang.String normalizeNonterminal(java.lang.String category)

Description copied from class: BobChrisTreeNormalizer

Normalizes a nonterminal contents. This implementation strips functional tags, etc. and interns the nonterminal.

Overrides:

normalizeNonterminal in class BobChrisTreeNormalizer

Parameters:

category - The String that decorates this nonterminal node

Returns:

The normalized form of this nonterminal String

normalizeWholeTree

public Tree normalizeWholeTree(Tree tree,
                               TreeFactory tf)

Description copied from class: BobChrisTreeNormalizer

Normalize a whole tree -- one can assume that this is the root. This implementation deletes empty elements (ones with nonterminal tag label '-NONE-') from the tree, and splices out unary A over A nodes. It does work for a null tree.

Overrides:

normalizeWholeTree in class BobChrisTreeNormalizer

Parameters:

tree - The tree to be normalized

tf - the TreeFactory to create new nodes (if needed)

Returns:

Tree the normalized tree