edu.ucla.sspace.dependency

Class WaCKyDependencyExtractor

java.lang.Object

edu.ucla.sspace.dependency.CoNLLDependencyExtractor

edu.ucla.sspace.dependency.WaCKyDependencyExtractor

All Implemented Interfaces:

DependencyExtractor

public class WaCKyDependencyExtractor
extends CoNLLDependencyExtractor

A class for extracting dependency parsed sentences from WaCKy corpora. These corpora use a modified CoNLL format, which are generated by the Malt Parser. The ordering of the CoNLL format can be specified with an xml file following the format specified here.

Parsed sentences are returned as an array of DependencyTreeNode innstances. The nodes contain relations between each word in the sentence. The nodes in the returned array are ordered by the ordering of word occurrences.

This class optionally supports filtering sentences to remove words. The nodes for those removed words will still remain in the parse tree. Similarly, the relations connecting the removed words will also existing. However, the DependencyTreeNode.word() method will return IteratorFactory.EMPTY_TOKEN to indicate that the node's text was filtered out. Note that the node will still have the original part of speech.

Author:

David Jurgens

Constructor Summary

Constructors

Constructor and Description
WaCKyDependencyExtractor() Creates a new WaCKyDependencyExtractor that assumes the default ordering for Malt dependency parses.
WaCKyDependencyExtractor(TokenFilter filter, Stemmer stemmer) Creates a new WaCKyDependencyExtractor that assumes the default ordering for Malt dependency parses and uses the given TokenFilter and Stemmer.

Method Summary

Methods inherited from class edu.ucla.sspace.dependency.CoNLLDependencyExtractor

readNextTree

Methods inherited from class java.lang.Object

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

Constructor Detail

WaCKyDependencyExtractor

public WaCKyDependencyExtractor()

Creates a new WaCKyDependencyExtractor that assumes the default ordering for Malt dependency parses.

WaCKyDependencyExtractor

public WaCKyDependencyExtractor(TokenFilter filter,
                        Stemmer stemmer)

Creates a new WaCKyDependencyExtractor that assumes the default ordering for Malt dependency parses and uses the given TokenFilter and Stemmer.