/**
* Copyright (c) 2009/09-2012/08, Regents of the University of Colorado
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Copyright 2012/09-2013/04, 2013/11-Present, University of Massachusetts Amherst
* Copyright 2013/05-2013/10, IPSoft Inc.
*
* Licensed 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 com.clearnlp.experiment;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.regex.Pattern;
import com.clearnlp.constituent.CTNode;
import com.clearnlp.constituent.CTReader;
import com.clearnlp.constituent.CTTree;
import com.clearnlp.io.FileExtFilter;
import com.clearnlp.util.UTArray;
import com.clearnlp.util.UTInput;
import com.clearnlp.util.UTOutput;
import com.clearnlp.util.pair.IntIntPair;
public class GenerateOntoNotesCoref
{
final Pattern P_SPACE = Pattern.compile(" ");
final Pattern P_COLON = Pattern.compile(":");
final Pattern P_UNDER = Pattern.compile("_");
public GenerateOntoNotesCoref(String ontoDir) throws IOException
{
generateTokenBasedCorefs(ontoDir);
}
void generateTokenBasedCorefs(String ontoDir) throws IOException
{
List<String> corefFiles = getFilenames(ontoDir, "coref");
String parseFile;
for (String corefFile : corefFiles)
{
// System.out.println(corefFile);
parseFile = corefFile.substring(0, corefFile.length()-5) + "parse";
generateTokenBasedCorefs(parseFile, corefFile, corefFile+".tok");
}
}
List<String> getFilenames(String rootDir, String ext)
{
List<String> filenames = new ArrayList<String>();
File root = new File(rootDir);
File fGenre, fSource, fSection;
for (String genre : root.list())
{
fGenre = new File(root.getAbsolutePath() + File.separator + genre);
if (fGenre.isDirectory())
{
for (String source : fGenre.list())
{
fSource = new File(fGenre.getAbsolutePath() + File.separator + source);
if (fSource.isDirectory())
{
for (String section : fSource.list())
{
fSection = new File(fSource.getAbsolutePath() + File.separator + section);
if (fSection.isDirectory())
{
for (String corpus : fSection.list(new FileExtFilter(ext)))
filenames.add(fSection.getAbsolutePath() + File.separator + corpus);
}
}
}
}
}
}
Collections.sort(filenames);
return filenames;
}
private void generateTokenBasedCorefs(String parseFile, String corefFile, String outputFile) throws IOException
{
List<CTTree> trees = getTrees(parseFile);
BufferedReader reader = UTInput.createBufferedFileReader(corefFile);
PrintStream fout = UTOutput.createPrintBufferedFileStream(outputFile);
String line;
while ((line = reader.readLine()) != null)
fout.println(getTokenBasedLine(trees, line));
reader.close();
fout.close();
}
private List<CTTree> getTrees(String parseFile)
{
CTReader reader = new CTReader(UTInput.createBufferedFileReader(parseFile));
List<CTTree> trees = new ArrayList<CTTree>();
CTTree tree;
while ((tree = reader.nextTree()) != null)
trees.add(tree);
return trees;
}
private String getTokenBasedLine(List<CTTree> trees, String line)
{
List<String> mentions = new ArrayList<String>();
String[] tmp = P_SPACE.split(line);
int i, size = tmp.length;
String mention;
mentions.add(tmp[0]);
for (i=1; i<size; i++)
{
mention = getTokenBasedMention(trees, tmp[i]);
if (mention != null) mentions.add(mention);
}
return UTArray.join(mentions, " ");
}
private String getTokenBasedMention(List<CTTree> trees, String mention)
{
StringBuilder build = new StringBuilder();
int idx = mention.indexOf("-");
String span = mention.substring(0,idx);
String type = mention.substring(idx+1);
String[] locs = P_COLON.split(span);
IntIntPair fst = getTokenBasedMentionAux(trees, locs[0], true);
IntIntPair snd = getTokenBasedMentionAux(trees, locs[1], false);
if (fst == null || snd == null || fst.i2 > snd.i2)
{
System.err.println("WRONG");
return null;
}
build.append(fst.i1);
build.append("_");
build.append(fst.i2);
build.append(":");
build.append(snd.i2);
build.append("-");
build.append(type);
return build.toString();
}
private IntIntPair getTokenBasedMentionAux(List<CTTree> trees, String loc, boolean isFirst)
{
String[] tmp = P_UNDER.split(loc);
int treeId = Integer.parseInt(tmp[0]);
int terminalId = Integer.parseInt(tmp[1]);
CTTree tree = trees.get(treeId);
List<CTNode> terminals = tree.getTerminals();
CTNode node = tree.getTerminal(terminalId);
if (isFirst)
{
int size = terminals.size();
while (node.isEmptyCategory())
{
if (terminalId+1 < size)
node = terminals.get(++terminalId);
else
return null;
}
}
else
{
while (node.isEmptyCategory())
{
if (terminalId-1 >= 0)
node = terminals.get(--terminalId);
else
return null;
}
}
return new IntIntPair(treeId, node.getTokenId());
}
public static void main(String[] args)
{
try {
new GenerateOntoNotesCoref(args[0]);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}