edu.washington.cs.knowitall.extractor.conf.featureset

Class PosFeature

java.lang.Object

edu.washington.cs.knowitall.extractor.conf.featureset.ExtractionFeature

edu.washington.cs.knowitall.extractor.conf.featureset.PosFeature

All Implemented Interfaces:

com.google.common.base.Predicate<ChunkedBinaryExtraction>

public abstract class PosFeature
extends ExtractionFeature

Parent class for any feature specific to the POS layer

Author:

Rob

Field Summary

Fields

Modifier and Type	Field and Description
static String[]	allVerbPosTags

Fields inherited from class edu.washington.cs.knowitall.extractor.conf.featureset.ExtractionFeature

stemmer

Constructor Summary

Constructors

Constructor and Description
PosFeature(Collection<String> posTags)
PosFeature(String... posTags)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract edu.washington.cs.knowitall.commonlib.Range	rangeToExamine(ChunkedBinaryExtraction cbe) Given a ChunkedBinaryExtraction, I need the implementation to tell me at which indices to test my predicate.
static PosFeature	relSingleVerb() Get a feature that fires if any pos tag from posTags is present within a given single verb relation (false if multiple-token rel)
static PosFeature	rightAfterArg2(String... posTags) Get a feature that fires if any pos tag from posTags is present at the index immediately after arg2.
static PosFeature	rightBeforeArg1(String... posTags) Get a feature that fires if any pos tag from posTags is present at the index immediately before arg1.
static PosFeature	rightBeforeRel(String... posTags) Get a feature that fires if any pos tag from posTags is present immediately before the relation.
protected boolean	testAtIndex(Integer index, ChunkedSentence sentence)
static PosFeature	withinArg1(String... posTags) Get a feature that fires if any pos tag from posTags is present within Arg 1.
static PosFeature	withinArg2(String... posTags) Get a feature that fires if any pos tag from posTags is present within Arg 2.
static PosFeature	withinRel(String... posTags) Get a feature that fires if any pos tag from posTags is present within the relation.

Methods inherited from class edu.washington.cs.knowitall.extractor.conf.featureset.ExtractionFeature

apply, indexOfHeadVerb

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Predicate

equals

Field Detail

allVerbPosTags

public static final String[] allVerbPosTags

Constructor Detail

PosFeature

public PosFeature(String... posTags)

PosFeature

public PosFeature(Collection<String> posTags)

Method Detail

testAtIndex

protected boolean testAtIndex(Integer index,
                  ChunkedSentence sentence)

Specified by:

testAtIndex in class ExtractionFeature

rangeToExamine

protected abstract edu.washington.cs.knowitall.commonlib.Range rangeToExamine(ChunkedBinaryExtraction cbe)

Given a ChunkedBinaryExtraction, I need the implementation to tell me at which indices to test my predicate.

Specified by:

rangeToExamine in class ExtractionFeature

Returns:

withinArg2

public static PosFeature withinArg2(String... posTags)

Get a feature that fires if any pos tag from posTags is present within Arg 2.

Parameters:

posTags -

Returns:

withinArg1

public static PosFeature withinArg1(String... posTags)

Get a feature that fires if any pos tag from posTags is present within Arg 1.

Parameters:

posTags -

Returns:

relSingleVerb

public static PosFeature relSingleVerb()

Get a feature that fires if any pos tag from posTags is present within a given single verb relation (false if multiple-token rel)

Parameters:

posTags -

Returns:

withinRel

public static PosFeature withinRel(String... posTags)

Get a feature that fires if any pos tag from posTags is present within the relation.

Parameters:

posTags -

Returns:

rightBeforeArg1

public static PosFeature rightBeforeArg1(String... posTags)

Get a feature that fires if any pos tag from posTags is present at the index immediately before arg1.

Parameters:

posTags -

Returns:

rightAfterArg2

public static PosFeature rightAfterArg2(String... posTags)

Get a feature that fires if any pos tag from posTags is present at the index immediately after arg2.

Parameters:

posTags -

Returns:

rightBeforeRel

public static PosFeature rightBeforeRel(String... posTags)

Get a feature that fires if any pos tag from posTags is present immediately before the relation.

Parameters:

posTags -

Returns: