edu.stanford.nlp.parser.lexparser

Class Debinarizer

java.lang.Object

edu.stanford.nlp.parser.lexparser.Debinarizer

All Implemented Interfaces:

TreeTransformer, java.util.function.Function<Tree,Tree>

public class Debinarizer
extends java.lang.Object
implements TreeTransformer

Debinarizes a binary tree from the parser. Node values with a '@' in them anywhere are assumed to be inserted nodes for the purpose of binarization, and are removed. The code also removes the last child of the root node, assuming that it is an inserted dependency root.

Constructor Summary

Constructors

Constructor and Description
Debinarizer(boolean forceCNF)
Debinarizer(boolean forceCNF, LabelFactory lf)

Method Summary

Modifier and Type	Method and Description
Tree	transformTree(Tree t) Does whatever one needs to do to a particular tree.
protected Tree	transformTreeHelper(Tree t)

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.stanford.nlp.trees.TreeTransformer

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

Debinarizer

public Debinarizer(boolean forceCNF)

Debinarizer

public Debinarizer(boolean forceCNF,
                   LabelFactory lf)

Method Detail

transformTreeHelper

protected Tree transformTreeHelper(Tree t)

transformTree

public Tree transformTree(Tree t)

Description copied from interface: TreeTransformer

Does whatever one needs to do to a particular tree. This routine is passed a whole Tree, and could itself work recursively, but the canonical usage is to invoke this method via the Tree.transform() method, which will apply the transformer in a bottom-up manner to each local Tree, and hence the implementation of TreeTransformer should merely examine and change a local (one-level) Tree.

Specified by:

transformTree in interface TreeTransformer

Parameters:

t - A tree. Classes implementing this interface can assume that the tree passed in is not null.

Returns:

The transformed Tree