opennlp.tools.coref.resolver
Class PluralPronounResolver

java.lang.Object
  opennlp.tools.coref.resolver.AbstractResolver
      opennlp.tools.coref.resolver.MaxentResolver
          opennlp.tools.coref.resolver.PluralPronounResolver

All Implemented Interfaces:

Resolver

public class PluralPronounResolver
extends MaxentResolver

Resolves coreference between plural pronouns and their referents.

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

PluralPronounResolver(String projectName, ResolverMode m)

PluralPronounResolver(String projectName, ResolverMode m, NonReferentialResolver nrr)

Method Summary

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.
protected boolean	outOfRange(MentionContext mention, DiscourseEntity entity) Determines if the specified entity is too far from the specified mention to be resolved to it.

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, setNumberSentencesBack

Methods inherited from class java.lang.Object

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

Constructor Detail

PluralPronounResolver

public PluralPronounResolver(String projectName,
                             ResolverMode m)
                      throws IOException

Throws:

IOException

PluralPronounResolver

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

Throws:

IOException

Method Detail

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.

outOfRange

protected boolean outOfRange(MentionContext mention,
                             DiscourseEntity entity)

Description copied from class: AbstractResolver

Determines if the specified entity is too far from the specified mention to be resolved to it. Once an entity has been determined to be out of range subsequent entities are not considered. To skip intermediate entities @see excluded.

Overrides:

outOfRange in class AbstractResolver

Parameters:

mention - The mention which is being considered.

entity - The entity to which the mention is to be resolved.

Returns:

true is the entity is in range of the mention, false otherwise.

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.