edu.stanford.nlp.parser.dvparser
Class FilterConfusingRules

java.lang.Object
  edu.stanford.nlp.parser.dvparser.FilterConfusingRules

All Implemented Interfaces:

Filter<Tree>, java.io.Serializable

public class FilterConfusingRules
extends java.lang.Object
implements Filter<Tree>

This filter rejects Trees which have unary or binary productions which the given parser does not contain.
One situation where this happens often is when grammar compaction is turned on; this can often result in a Tree where there is no BinaryRule which could explicitely create a particular node, but the Tree is still valid. However, for various applications of the DVParser, this kind of Tree is useless. A good way to eliminate most of this kind of tree is to make sure the parser is trained with -compactGrammar 0.

See Also:

Serialized Form

Constructor Summary

FilterConfusingRules(LexicalizedParser parser)

Method Summary

boolean

accept(Tree tree) Checks if the given object passes the filter.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterConfusingRules

public FilterConfusingRules(LexicalizedParser parser)

Method Detail

accept

public boolean accept(Tree tree)

Description copied from interface: Filter

Checks if the given object passes the filter.

Specified by:

accept in interface Filter<Tree>

Parameters:

tree - an object to test

Returns:

Whether the object should be accepted (for some processing)