edu.stanford.nlp.dcoref
Class CorefCluster

java.lang.Object
  edu.stanford.nlp.dcoref.CorefCluster

All Implemented Interfaces:

java.io.Serializable

public class CorefCluster
extends java.lang.Object
implements java.io.Serializable

One cluster for the SieveCoreferenceSystem.

Author:

Heeyoung Lee

See Also:

Serialized Form

Field Summary

protected java.util.Set<Dictionaries.Animacy>	animacies
protected int	clusterID
protected java.util.Set<Mention>	corefMentions
protected Mention	firstMention The first mention in this cluster
protected java.util.Set<Dictionaries.Gender>	genders
protected java.util.Set<java.lang.String>	heads
protected java.util.Set<java.lang.String>	nerStrings
protected java.util.Set<Dictionaries.Number>	numbers
protected Mention	representative Return the most representative mention in the chain.
java.util.Set<java.lang.String>	words All words in this cluster - for word inclusion feature

Constructor Summary

CorefCluster()

CorefCluster(int ID)

CorefCluster(int ID, java.util.Set<Mention> mentions)

Method Summary

static boolean	alias(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Semantics semantics, Dictionaries dict)
static boolean	attributesAgree(CorefCluster mentionCluster, CorefCluster potentialAntecedent)
static boolean	bothHaveProper(CorefCluster mentionCluster, CorefCluster potentialAntecedent)
static boolean	exactStringMatch(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Dictionaries dict, java.util.Set<Mention> roleSet)
int	getClusterID()
java.util.Set<Mention>	getCorefMentions()
Mention	getFirstMention()
Mention	getRepresentativeMention()
static boolean	haveIncompatibleModifier(CorefCluster mentionCluster, CorefCluster potentialAntecedent) Compatible modifier only
static boolean	headsAgree(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention m, Mention ant, Dictionaries dict)
static boolean	isAcronym(CorefCluster mentionCluster, CorefCluster potentialAntecedent)
static boolean	isApposition(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention m1, Mention m2)
static boolean	isPredicateNominatives(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention m1, Mention m2)
static boolean	isRelativePronoun(Mention m1, Mention m2)
static boolean	isRoleAppositive(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention m1, Mention m2, Dictionaries dict)
boolean	isSinglePronounCluster(Dictionaries dict)
static boolean	iWithini(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Dictionaries dict)
static void	mergeClusters(CorefCluster to, CorefCluster from) merge 2 clusters: to = to + from
static boolean	personDisagree(Document document, CorefCluster mentionCluster, CorefCluster potentialAntecedent, Dictionaries dict)
void	printCorefCluster(java.util.logging.Logger logger) Print cluster information
static boolean	relaxedExactStringMatch(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention mention, Mention ant, Dictionaries dict, java.util.Set<Mention> roleSet) Exact string match except phrase after head (only for proper noun): For dealing with a error like "[Mr.
static boolean	relaxedHeadsAgreeBetweenMentions(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention m, Mention ant)
static boolean	sameProperHeadLastWord(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention mention, Mention ant)
static boolean	wordsIncluded(CorefCluster mentionCluster, CorefCluster potentialAntecedent, Mention mention, Mention ant) Word inclusion except stop words

Methods inherited from class java.lang.Object

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

Field Detail

corefMentions

protected java.util.Set<Mention> corefMentions

clusterID

protected int clusterID

numbers

protected java.util.Set<Dictionaries.Number> numbers

genders

protected java.util.Set<Dictionaries.Gender> genders

animacies

protected java.util.Set<Dictionaries.Animacy> animacies

nerStrings

protected java.util.Set<java.lang.String> nerStrings

heads

protected java.util.Set<java.lang.String> heads

words

public java.util.Set<java.lang.String> words

All words in this cluster - for word inclusion feature

firstMention

protected Mention firstMention

The first mention in this cluster

representative

protected Mention representative

Return the most representative mention in the chain. Proper mention and a mention with more pre-modifiers are preferred.

Constructor Detail

CorefCluster

public CorefCluster(int ID)

CorefCluster

public CorefCluster()

CorefCluster

public CorefCluster(int ID,
                    java.util.Set<Mention> mentions)

Method Detail

getClusterID

public int getClusterID()

getCorefMentions

public java.util.Set<Mention> getCorefMentions()

getFirstMention

public Mention getFirstMention()

getRepresentativeMention

public Mention getRepresentativeMention()

mergeClusters

public static void mergeClusters(CorefCluster to,
                                 CorefCluster from)

merge 2 clusters: to = to + from

personDisagree

public static boolean personDisagree(Document document,
                                     CorefCluster mentionCluster,
                                     CorefCluster potentialAntecedent,
                                     Dictionaries dict)

wordsIncluded

public static boolean wordsIncluded(CorefCluster mentionCluster,
                                    CorefCluster potentialAntecedent,
                                    Mention mention,
                                    Mention ant)

Word inclusion except stop words

haveIncompatibleModifier

public static boolean haveIncompatibleModifier(CorefCluster mentionCluster,
                                               CorefCluster potentialAntecedent)

Compatible modifier only

isRoleAppositive

public static boolean isRoleAppositive(CorefCluster mentionCluster,
                                       CorefCluster potentialAntecedent,
                                       Mention m1,
                                       Mention m2,
                                       Dictionaries dict)

isRelativePronoun

public static boolean isRelativePronoun(Mention m1,
                                        Mention m2)

isAcronym

public static boolean isAcronym(CorefCluster mentionCluster,
                                CorefCluster potentialAntecedent)

isPredicateNominatives

public static boolean isPredicateNominatives(CorefCluster mentionCluster,
                                             CorefCluster potentialAntecedent,
                                             Mention m1,
                                             Mention m2)

isApposition

public static boolean isApposition(CorefCluster mentionCluster,
                                   CorefCluster potentialAntecedent,
                                   Mention m1,
                                   Mention m2)

attributesAgree

public static boolean attributesAgree(CorefCluster mentionCluster,
                                      CorefCluster potentialAntecedent)

relaxedHeadsAgreeBetweenMentions

public static boolean relaxedHeadsAgreeBetweenMentions(CorefCluster mentionCluster,
                                                       CorefCluster potentialAntecedent,
                                                       Mention m,
                                                       Mention ant)

headsAgree

public static boolean headsAgree(CorefCluster mentionCluster,
                                 CorefCluster potentialAntecedent,
                                 Mention m,
                                 Mention ant,
                                 Dictionaries dict)

exactStringMatch

public static boolean exactStringMatch(CorefCluster mentionCluster,
                                       CorefCluster potentialAntecedent,
                                       Dictionaries dict,
                                       java.util.Set<Mention> roleSet)

relaxedExactStringMatch

public static boolean relaxedExactStringMatch(CorefCluster mentionCluster,
                                              CorefCluster potentialAntecedent,
                                              Mention mention,
                                              Mention ant,
                                              Dictionaries dict,
                                              java.util.Set<Mention> roleSet)

Exact string match except phrase after head (only for proper noun): For dealing with a error like "[Mr. Bickford] <- [Mr. Bickford , an 18-year mediation veteran]"

printCorefCluster

public void printCorefCluster(java.util.logging.Logger logger)

Print cluster information

isSinglePronounCluster

public boolean isSinglePronounCluster(Dictionaries dict)

bothHaveProper

public static boolean bothHaveProper(CorefCluster mentionCluster,
                                     CorefCluster potentialAntecedent)

sameProperHeadLastWord

public static boolean sameProperHeadLastWord(CorefCluster mentionCluster,
                                             CorefCluster potentialAntecedent,
                                             Mention mention,
                                             Mention ant)

alias

public static boolean alias(CorefCluster mentionCluster,
                            CorefCluster potentialAntecedent,
                            Semantics semantics,
                            Dictionaries dict)
                     throws java.lang.Exception

Throws:

java.lang.Exception

iWithini

public static boolean iWithini(CorefCluster mentionCluster,
                               CorefCluster potentialAntecedent,
                               Dictionaries dict)