edu.stanford.nlp.parser.lexparser

Class AbstractTreebankParserParams.RemoveGFSubcategoryStripper

java.lang.Object

edu.stanford.nlp.parser.lexparser.AbstractTreebankParserParams.RemoveGFSubcategoryStripper

All Implemented Interfaces:

TreeTransformer

Enclosing class:

AbstractTreebankParserParams

protected class AbstractTreebankParserParams.RemoveGFSubcategoryStripper
extends Object
implements TreeTransformer

The job of this class is to remove subcategorizations from tag and category nodes, so as to put a tree in a suitable state for evaluation. Providing the TreebankLanguagePack is defined correctly, this should work for any language. Very simililar to subcategory stripper, but strips grammatical functions as well.

Field Summary

Fields

Modifier and Type	Field and Description
protected TreeFactory	tf

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractTreebankParserParams.RemoveGFSubcategoryStripper()

Method Summary

Methods

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

Methods inherited from class java.lang.Object

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

Field Detail

tf

protected TreeFactory tf

Constructor Detail

AbstractTreebankParserParams.RemoveGFSubcategoryStripper

protected AbstractTreebankParserParams.RemoveGFSubcategoryStripper()

Method Detail

transformTree

public Tree transformTree(Tree tree)

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:

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

Returns:

the transformed Tree