opennlp.tools.coref.resolver

Class DefiniteNounResolver

java.lang.Object

opennlp.tools.coref.resolver.AbstractResolver

opennlp.tools.coref.resolver.MaxentResolver

opennlp.tools.coref.resolver.DefiniteNounResolver

All Implemented Interfaces:

Resolver

public class DefiniteNounResolver
extends MaxentResolver

Resolves coreference between definite noun-phrases.

Field Summary

Fields inherited from class opennlp.tools.coref.resolver.MaxentResolver

DEFAULT, DIFF, nonReferentialResolver, pairedSampleSelection, preferFirstReferent, SAME, useSameModelForNonRef

Fields inherited from class opennlp.tools.coref.resolver.AbstractResolver

distances, numEntitiesBack, numSentencesBack, showExclusions

Constructor Summary

Constructors

Constructor and Description
DefiniteNounResolver(String projectName, ResolverMode m)
DefiniteNounResolver(String projectName, ResolverMode m, NonReferentialResolver nrr)

Method Summary

Modifier and Type	Method and Description
boolean	canResolve(MentionContext mention) Returns true if this resolver is able to resolve the referring expression of the same type as the specified mention.
protected List<String>	getFeatures(MentionContext mention, DiscourseEntity entity) Returns a list of features for deciding whether the specified mention refers to the specified discourse entity.

Methods inherited from class opennlp.tools.coref.resolver.MaxentResolver

defaultReferent, excluded, resolve, retain, setSimilarityModel, train

Methods inherited from class opennlp.tools.coref.resolver.AbstractResolver

featureString, getHead, getHeadIndex, getHeadString, getNumEntities, getNumEntities, outOfRange, setNumberSentencesBack

Methods inherited from class java.lang.Object

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

Constructor Detail

DefiniteNounResolver

public DefiniteNounResolver(String projectName,
                            ResolverMode m)
                     throws IOException

Throws:

IOException

DefiniteNounResolver

public DefiniteNounResolver(String projectName,
                            ResolverMode m,
                            NonReferentialResolver nrr)
                     throws IOException

Throws:

IOException

Method Detail

canResolve

public boolean canResolve(MentionContext mention)

Description copied from interface: Resolver

Returns true if this resolver is able to resolve the referring expression of the same type as the specified mention.

Parameters:

mention - The mention being considered for resolution.

Returns:

true if the resolver handles this type of referring expression, false otherwise.

getFeatures

protected List<String> getFeatures(MentionContext mention,
                                   DiscourseEntity entity)

Description copied from class: MaxentResolver

Returns a list of features for deciding whether the specified mention refers to the specified discourse entity.

Overrides:

getFeatures in class MaxentResolver

Parameters:

mention - the mention being considers as possibly referential.

entity - The discourse entity with which the mention is being considered referential.

Returns:

a list of features used to predict reference between the specified mention and entity.