public override bool CanResolve(MentionContext mention)
{
string tag = mention.HeadTokenTag;
return(tag != null && PartsOfSpeech.IsPersonalOrPossessivePronoun(tag) &&
Linker.PluralThirdPersonPronounPattern.IsMatch(mention.HeadTokenText));
}
protected internal override bool IsExcluded(MentionContext mention, DiscourseEntity entity)
{
if (base.IsExcluded(mention, entity))
{
return(true);
}
string mentionGender = null;
foreach (MentionContext entityMention in entity.Mentions)
{
string tag = entityMention.HeadTokenTag;
if (tag != null && PartsOfSpeech.IsPersonalOrPossessivePronoun(tag) &&
Linker.SingularThirdPersonPronounPattern.IsMatch(mention.HeadTokenText))
{
if (mentionGender == null)
{
//lazy initilization
mentionGender = GetPronounGender(mention.HeadTokenText);
}
string entityGender = GetPronounGender(entityMention.HeadTokenText);
if (!entityGender.Equals("u") && !mentionGender.Equals(entityGender))
{
return(true);
}
}
}
return(false);
}
protected internal override List <string> GetFeatures(MentionContext mention, DiscourseEntity entity)
{
List <string> features = base.GetFeatures(mention, entity);
if (entity != null)
{
features.AddRange(GetPronounMatchFeatures(mention, entity));
List <string> contexts = GetContextFeatures(mention);
MentionContext cec = entity.LastExtent;
if (PartsOfSpeech.IsPersonalOrPossessivePronoun(mention.HeadTokenTag) && PartsOfSpeech.IsPersonalOrPossessivePronoun(cec.HeadTokenTag))
{
features.Add(mention.HeadTokenText + "," + cec.HeadTokenText);
}
else if (PartsOfSpeech.IsProperNoun(mention.HeadTokenText))
{
for (int ci = 0, cl = contexts.Count; ci < cl; ci++)
{
features.Add(contexts[ci]);
}
features.Add(mention.NameType + "," + cec.HeadTokenText);
}
else
{
List <string> ccontexts = GetContextFeatures(cec);
for (int ci = 0, cl = ccontexts.Count; ci < cl; ci++)
{
features.Add(ccontexts[ci]);
}
features.Add(cec.NameType + "," + mention.HeadTokenText);
}
}
return(features);
}
private void CollectPossessivePronouns(IParse nounPhrase, List <Mention> entities)
{
//TODO: Look at how training is done and examine whether this is needed or can be accomidated in a different way.
/*
* List snps = np.getSubNounPhrases();
* if (snps.size() != 0) {
* for (int si = 0, sl = snps.size(); si < sl; si++) {
* Parse snp = (Parse) snps.get(si);
* Extent ppExtent = new Extent(snp.getSpan(), snp.getSpan(), snp.getEntityId(), null,Linker.PRONOUN_MODIFIER);
* entities.add(ppExtent);
* }
* }
* else {
*/
List <IParse> nounPhraseTokens = nounPhrase.Tokens;
IParse headToken = mHeadFinder.GetHeadToken(nounPhrase);
for (int tokenIndex = nounPhraseTokens.Count - 2; tokenIndex >= 0; tokenIndex--)
{
IParse token = nounPhraseTokens[tokenIndex];
if (token == headToken)
{
continue;
}
if (PartsOfSpeech.IsPersonalOrPossessivePronoun(token.SyntacticType) && IsHandledPronoun(token.ToString()))
{
var possessivePronounExtent = new Mention(token.Span, token.Span, token.EntityId, null, Linker.PronounModifier);
entities.Add(possessivePronounExtent);
break;
}
}
//}
}
public override bool CanResolve(MentionContext mention)
{
string tag = mention.HeadTokenTag;
bool fpp = tag != null && PartsOfSpeech.IsPersonalOrPossessivePronoun(tag) && Linker.SpeechPronounPattern.IsMatch(mention.HeadTokenText);
bool pn = tag != null && PartsOfSpeech.IsProperNoun(tag);
return(fpp || pn);
}
/// <summary>
/// Returns features indicating whether the specified mention is compatible with the pronouns
/// of the specified entity.
/// </summary>
/// <param name="mention">
/// The mention.
/// </param>
/// <param name="entity">
/// The entity.
/// </param>
/// <returns>
/// list of features indicating whether the specified mention is compatible with the pronouns
/// of the specified entity.
/// </returns>
protected internal virtual List <string> GetPronounMatchFeatures(Mention.MentionContext mention, DiscourseEntity entity)
{
bool foundCompatiblePronoun = false;
bool foundIncompatiblePronoun = false;
if (PartsOfSpeech.IsPersonalOrPossessivePronoun(mention.HeadTokenTag))
{
Dictionary <string, string> pronounMap = GetPronounFeatureMap(mention.HeadTokenText);
foreach (Mention.MentionContext candidateMention in entity.Mentions)
{
if (PartsOfSpeech.IsPersonalOrPossessivePronoun(candidateMention.HeadTokenTag))
{
if (mention.HeadTokenText.ToUpper() == candidateMention.HeadTokenText.ToUpper())
{
foundCompatiblePronoun = true;
break;
}
else
{
Dictionary <string, string> candidatePronounMap = GetPronounFeatureMap(candidateMention.HeadTokenText);
bool allKeysMatch = true;
foreach (string key in pronounMap.Keys)
{
if (candidatePronounMap.ContainsKey(key))
{
if (pronounMap[key] != candidatePronounMap[key])
{
foundIncompatiblePronoun = true;
allKeysMatch = false;
}
}
else
{
allKeysMatch = false;
}
}
if (allKeysMatch)
{
foundCompatiblePronoun = true;
}
}
}
}
}
List <string> pronounFeatures = new List <string>();
if (foundCompatiblePronoun)
{
pronounFeatures.Add("compatiblePronoun");
}
if (foundIncompatiblePronoun)
{
pronounFeatures.Add("incompatiblePronoun");
}
return(pronounFeatures);
}
//UPGRADE_NOTE: Access modifiers of method 'excluded' were changed to 'public'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1204'"
protected internal override bool IsExcluded(MentionContext mention, DiscourseEntity entity)
{
if (base.IsExcluded(mention, entity))
{
return(true);
}
MentionContext cec = entity.LastExtent;
if (!CanResolve(cec))
{
return(true);
}
if (PartsOfSpeech.IsProperNoun(mention.HeadTokenTag))
{
//mention is a propernoun
if (PartsOfSpeech.IsProperNoun(cec.HeadTokenTag))
{
return(true); // both NNP
}
else
{
if (entity.MentionCount > 1)
{
return(true);
}
return(!CanResolve(cec));
}
}
else if (PartsOfSpeech.IsPersonalOrPossessivePronoun(mention.HeadTokenTag))
{
// mention is a speech pronoun
// cec can be either a speech pronoun or a propernoun
if (PartsOfSpeech.IsProperNoun(cec.HeadTokenTag))
{
//exclude antecedents not in the same sentence when they are not pronoun
return(mention.SentenceNumber - cec.SentenceNumber != 0);
}
else if (PartsOfSpeech.IsPersonalOrPossessivePronoun(cec.HeadTokenTag))
{
return(false);
}
else
{
Console.Error.WriteLine("Unexpected candidate exluded: " + cec.ToText());
return(true);
}
}
else
{
Console.Error.WriteLine("Unexpected mention exluded: " + mention.ToText());
return(true);
}
}
private bool IsPronoun(Context nounPhrase)
{
return(PartsOfSpeech.IsPersonalOrPossessivePronoun(nounPhrase.HeadTokenTag));
}