svn commit: r1308787 - /opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java

[jo...@apache.org]

Author: joern
Date: Tue Apr  3 09:41:31 2012
New Revision: 1308787

URL: http://svn.apache.org/viewvc?rev=1308787&view=rev
Log:
OPENNLP-56 Added a stream which can enhance Raw Coref Samples with a full parse.

Added:
    opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java   (with props)

Added: opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java
URL: http://svn.apache.org/viewvc/opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java?rev=1308787&view=auto
==============================================================================
--- opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java (added)
+++ opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java Tue Apr  3 09:41:31 2012
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package opennlp.tools.formats.muc;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import opennlp.tools.coref.CorefSample;
+import opennlp.tools.coref.mention.DefaultParse;
+import opennlp.tools.formats.muc.MucCorefContentHandler.CorefMention;
+import opennlp.tools.parser.AbstractBottomUpParser;
+import opennlp.tools.parser.Parse;
+import opennlp.tools.parser.Parser;
+import opennlp.tools.util.FilterObjectStream;
+import opennlp.tools.util.ObjectStream;
+import opennlp.tools.util.Span;
+
+public class FullParseCorefEnhancerStream extends FilterObjectStream<RawCorefSample, CorefSample> {
+
+  private final Parser parser;
+
+  public FullParseCorefEnhancerStream(Parser parser, ObjectStream<RawCorefSample> samples) {
+    super(samples);
+    this.parser = parser;
+  }
+  
+  private static Parse createIncompleteParse(String tokens[]) {
+    
+    // produce text
+    Span tokenSpans[] = new Span[tokens.length];
+    StringBuilder textBuilder = new StringBuilder();
+    
+    for (int i = 0; i < tokens.length; i++) {
+      
+      if (textBuilder.length() > 0) {
+        textBuilder.append(' ');
+      }
+      
+      int startOffset = textBuilder.length();
+      textBuilder.append(tokens[i]);
+      tokenSpans[i] = new Span(startOffset, textBuilder.length());
+    }
+    
+    String text = textBuilder.toString();
+    
+    Parse p = new Parse(text, new Span(0, text.length()), AbstractBottomUpParser.INC_NODE, 0, 0);
+    
+    for (int i = 0; i < tokenSpans.length; i++) {
+      Span tokenSpan = tokenSpans[i];
+      p.insert(new Parse(text, new Span(tokenSpan.getStart(), tokenSpan.getEnd()), AbstractBottomUpParser.TOK_NODE, 0, i));
+    }
+    
+    return p;
+  }
+  
+  public CorefSample read() throws IOException {
+    
+    RawCorefSample sample = samples.read();
+    
+    if (sample != null) {
+
+      List<Parse> enhancedParses = new ArrayList<Parse>();
+      
+      List<String[]> sentences = sample.getTexts();
+      List<CorefMention[]> sentenceMentions = sample.getMentions();
+      
+      for (int i = 0; i < sentences.size(); i++) {
+        
+        String sentence[] = sentences.get(i);
+        
+        Parse incompleteParse = createIncompleteParse(sentence);
+        Parse p = parser.parse(incompleteParse);
+        
+        for (CorefMention mention : sentenceMentions.get(i)) {
+          DefaultParse.addMention(mention.id, mention.span, p.getTagNodes());
+        }
+        
+        enhancedParses.add(p);
+      }
+      
+      return new CorefSample(enhancedParses);
+    }
+    else {
+      return null;
+    }
+  }
+}

Propchange: opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/formats/muc/FullParseCorefEnhancerStream.java
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