private Annotation ReadSentence(string docId, IEnumerator <string> lineIterator)
{
Annotation sentence = new Annotation(string.Empty);
sentence.Set(typeof(CoreAnnotations.DocIDAnnotation), docId);
sentence.Set(typeof(MachineReadingAnnotations.EntityMentionsAnnotation), new List <EntityMention>());
// we'll need to set things like the tokens and textContent after we've
// fully read the sentence
// contains the full text that we've read so far
StringBuilder textContent = new StringBuilder();
int tokenCount = 0;
// how many tokens we've seen so far
IList <CoreLabel> tokens = new List <CoreLabel>();
// when we've seen two blank lines in a row, this sentence is over (one
// blank line separates the sentence and the relations
int numBlankLinesSeen = 0;
string sentenceID = null;
// keeps tracks of entities we've seen so far for use by relations
IDictionary <string, EntityMention> indexToEntityMention = new Dictionary <string, EntityMention>();
while (lineIterator.MoveNext() && numBlankLinesSeen < 2)
{
string currentLine = lineIterator.Current;
currentLine = currentLine.Replace("COMMA", ",");
IList <string> pieces = StringUtils.Split(currentLine);
string identifier;
int size = pieces.Count;
switch (size)
{
case 1:
{
// blank line between sentences or relations
numBlankLinesSeen++;
break;
}
case 3:
{
// relation
string type = pieces[2];
IList <ExtractionObject> args = new List <ExtractionObject>();
EntityMention entity1 = indexToEntityMention[pieces[0]];
EntityMention entity2 = indexToEntityMention[pieces[1]];
args.Add(entity1);
args.Add(entity2);
Span span = new Span(entity1.GetExtentTokenStart(), entity2.GetExtentTokenEnd());
// identifier = "relation" + sentenceID + "-" + sentence.getAllRelations().size();
identifier = RelationMention.MakeUniqueId();
RelationMention relationMention = new RelationMention(identifier, sentence, span, type, null, args);
AnnotationUtils.AddRelationMention(sentence, relationMention);
break;
}
case 9:
{
// token
/*
* Roth token lines look like this:
*
* 19 Peop 9 O NNP/NNP Jamal/Ghosheh O O O
*/
// Entities may be multiple words joined by '/'; we split these up
IList <string> words = StringUtils.Split(pieces[5], "/");
//List<String> postags = StringUtils.split(pieces.get(4),"/");
string text = StringUtils.Join(words, " ");
identifier = "entity" + pieces[0] + '-' + pieces[2];
string nerTag = GetNormalizedNERTag(pieces[1]);
// entity type of the word/expression
if (sentenceID == null)
{
sentenceID = pieces[0];
}
if (!nerTag.Equals("O"))
{
Span extentSpan = new Span(tokenCount, tokenCount + words.Count);
// Temporarily sets the head span to equal the extent span.
// This is so the entity has a head (in particular, getValue() works) even if preprocessSentences isn't called.
// The head span is later modified if preprocessSentences is called.
EntityMention entity = new EntityMention(identifier, sentence, extentSpan, extentSpan, nerTag, null, null);
AnnotationUtils.AddEntityMention(sentence, entity);
// we can get by using these indices as strings since we only use them
// as a hash key
string index = pieces[2];
indexToEntityMention[index] = entity;
}
// int i =0;
foreach (string word in words)
{
CoreLabel label = new CoreLabel();
label.SetWord(word);
//label.setTag(postags.get(i));
label.Set(typeof(CoreAnnotations.TextAnnotation), word);
label.Set(typeof(CoreAnnotations.ValueAnnotation), word);
// we don't set TokenBeginAnnotation or TokenEndAnnotation since we're
// not keeping track of character offsets
tokens.Add(label);
}
// i++;
textContent.Append(text);
textContent.Append(' ');
tokenCount += words.Count;
break;
}
}
}
sentence.Set(typeof(CoreAnnotations.TextAnnotation), textContent.ToString());
sentence.Set(typeof(CoreAnnotations.ValueAnnotation), textContent.ToString());
sentence.Set(typeof(CoreAnnotations.TokensAnnotation), tokens);
sentence.Set(typeof(CoreAnnotations.SentenceIDAnnotation), sentenceID);
return(sentence);
}
/// <summary>
/// Reads in a single ACE*.apf.xml file and convert it to RelationSentence
/// objects.
/// </summary>
/// <remarks>
/// Reads in a single ACE*.apf.xml file and convert it to RelationSentence
/// objects. However, you probably should call parse() instead.
/// </remarks>
/// <param name="prefix">
/// prefix of ACE filename to read (e.g.
/// "/u/mcclosky/scr/data/ACE2005/english_test/bc/CNN_CF_20030827.1630.01"
/// ) (no ".apf.xml" extension)
/// </param>
/// <returns>list of RelationSentence objects</returns>
/// <exception cref="System.IO.IOException"/>
/// <exception cref="Org.Xml.Sax.SAXException"/>
/// <exception cref="Javax.Xml.Parsers.ParserConfigurationException"/>
private IList <ICoreMap> ReadDocument(string prefix, Annotation corpus)
{
logger.Info("Reading document: " + prefix);
IList <ICoreMap> results = new List <ICoreMap>();
AceDocument aceDocument;
if (aceVersion.Equals("ACE2004"))
{
aceDocument = AceDocument.ParseDocument(prefix, false, aceVersion);
}
else
{
aceDocument = AceDocument.ParseDocument(prefix, false);
}
string docId = aceDocument.GetId();
// map entity mention ID strings to their EntityMention counterparts
IDictionary <string, EntityMention> entityMentionMap = Generics.NewHashMap();
/*
* for (int sentenceIndex = 0; sentenceIndex < aceDocument.getSentenceCount(); sentenceIndex++) {
* List<AceToken> tokens = aceDocument.getSentence(sentenceIndex);
* StringBuffer b = new StringBuffer();
* for(AceToken t: tokens) b.append(t.getLiteral() + " " );
* logger.info("SENTENCE: " + b.toString());
* }
*/
int tokenOffset = 0;
for (int sentenceIndex = 0; sentenceIndex < aceDocument.GetSentenceCount(); sentenceIndex++)
{
IList <AceToken> tokens = aceDocument.GetSentence(sentenceIndex);
IList <CoreLabel> words = new List <CoreLabel>();
StringBuilder textContent = new StringBuilder();
for (int i = 0; i < tokens.Count; i++)
{
CoreLabel l = new CoreLabel();
l.SetWord(tokens[i].GetLiteral());
l.Set(typeof(CoreAnnotations.ValueAnnotation), l.Word());
l.Set(typeof(CoreAnnotations.CharacterOffsetBeginAnnotation), tokens[i].GetByteStart());
l.Set(typeof(CoreAnnotations.CharacterOffsetEndAnnotation), tokens[i].GetByteEnd());
words.Add(l);
if (i > 0)
{
textContent.Append(" ");
}
textContent.Append(tokens[i].GetLiteral());
}
// skip "sentences" that are really just SGML tags (which come from using the RobustTokenizer)
if (words.Count == 1)
{
string word = words[0].Word();
if (word.StartsWith("<") && word.EndsWith(">"))
{
tokenOffset += tokens.Count;
continue;
}
}
ICoreMap sentence = new Annotation(textContent.ToString());
sentence.Set(typeof(CoreAnnotations.DocIDAnnotation), docId);
sentence.Set(typeof(CoreAnnotations.TokensAnnotation), words);
logger.Info("Reading sentence: \"" + textContent + "\"");
IList <AceEntityMention> entityMentions = aceDocument.GetEntityMentions(sentenceIndex);
IList <AceRelationMention> relationMentions = aceDocument.GetRelationMentions(sentenceIndex);
IList <AceEventMention> eventMentions = aceDocument.GetEventMentions(sentenceIndex);
// convert entity mentions
foreach (AceEntityMention aceEntityMention in entityMentions)
{
string corefID = string.Empty;
foreach (string entityID in aceDocument.GetKeySetEntities())
{
AceEntity e = aceDocument.GetEntity(entityID);
if (e.GetMentions().Contains(aceEntityMention))
{
corefID = entityID;
break;
}
}
EntityMention convertedMention = ConvertAceEntityMention(aceEntityMention, docId, sentence, tokenOffset, corefID);
// EntityMention convertedMention = convertAceEntityMention(aceEntityMention, docId, sentence, tokenOffset);
entityCounts.IncrementCount(convertedMention.GetType());
logger.Info("CONVERTED MENTION HEAD SPAN: " + convertedMention.GetHead());
logger.Info("CONVERTED ENTITY MENTION: " + convertedMention);
AnnotationUtils.AddEntityMention(sentence, convertedMention);
entityMentionMap[aceEntityMention.GetId()] = convertedMention;
}
// TODO: make Entity objects as needed
// convert relation mentions
foreach (AceRelationMention aceRelationMention in relationMentions)
{
RelationMention convertedMention = ConvertAceRelationMention(aceRelationMention, docId, sentence, entityMentionMap);
if (convertedMention != null)
{
relationCounts.IncrementCount(convertedMention.GetType());
logger.Info("CONVERTED RELATION MENTION: " + convertedMention);
AnnotationUtils.AddRelationMention(sentence, convertedMention);
}
}
// TODO: make Relation objects
// convert EventMentions
foreach (AceEventMention aceEventMention in eventMentions)
{
EventMention convertedMention = ConvertAceEventMention(aceEventMention, docId, sentence, entityMentionMap, tokenOffset);
if (convertedMention != null)
{
eventCounts.IncrementCount(convertedMention.GetType());
logger.Info("CONVERTED EVENT MENTION: " + convertedMention);
AnnotationUtils.AddEventMention(sentence, convertedMention);
}
}
// TODO: make Event objects
results.Add(sentence);
tokenOffset += tokens.Count;
}
return(results);
}
