Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* PTStemmer.java
* Copyright (C) 2009 University of Waikato, Hamilton, New Zealand
*
*/
package weka.core.stemmers;
import java.io.File;
import java.util.Enumeration;
import java.util.Vector;
import ptstemmer.exceptions.PTStemmerException;
import ptstemmer.implementations.OrengoStemmer;
import ptstemmer.implementations.PorterStemmer;
import ptstemmer.implementations.SavoyStemmer;
import ptstemmer.support.PTStemmerUtilities;
import weka.core.Option;
import weka.core.OptionHandler;
import weka.core.RevisionUtils;
import weka.core.SelectedTag;
import weka.core.Tag;
import weka.core.Utils;
/**
* A wrapper for PTStemmer (developed by Pedro Oliveira):
* http://code.google.com/p/ptstemmer/
*
*
* Valid options are:
*
*
-S <ORENGO|PORTER|SAVOY>
* The type of stemmer algorithm to use:
* ORENGO = Orengo
* PORTER = Porter
* SAVOY = Savoy
* (default: ORENGO)
*
*
-N <file>
* The file with the named entities to ignore (optional).
* File format: simple text file with one entity per line.
* (default: none)
*
*
*
-W <file>
* The file with the stopwords (optional).
* File format: simple text file with one stopword per line.
* (default: none)
*
*
*
-C <int>
* The size of the cache. Disable with 0.
* (default: 1000)
*
*
*
* @author FracPete (fracpete at waikato dot ac dot nz)
* @version $Revision: 1179 $
*/
public class PTStemmer
implements Stemmer, OptionHandler {
/** for serialization. */
static final long serialVersionUID = -6113024782588197L;
/** orengo stemmer. */
public static final int STEMMER_ORENGO = 0;
/** porter stemmer. */
public static final int STEMMER_PORTER = 1;
/** savoy stemmer. */
public static final int STEMMER_SAVOY = 2;
/** stemmers. */
public static final Tag[] TAGS_STEMMERS = {
new Tag(STEMMER_ORENGO, "orengo", "Orengo"),
new Tag(STEMMER_PORTER, "porter", "Porter"),
new Tag(STEMMER_SAVOY, "savoy", "Savoy")
};
/** the type of stemmer to use. */
protected int m_Stemmer = STEMMER_ORENGO;
/** the named entities. */
protected File m_NamedEntities = new File(".");
/** the stopwords. */
protected File m_Stopwords = new File(".");
/** the cache size. */
protected int m_Cache = 1000;
/** the actual stemmer. */
protected ptstemmer.Stemmer m_ActualStemmer;
/**
* Returns a string describing the stemmer.
*
* @return a description suitable for displaying in the
* explorer/experimenter gui
*/
public String globalInfo() {
return
"A wrapper for PTStemmer (developed by Pedro Oliveira):\n"
+ "http://code.google.com/p/ptstemmer/";
}
/**
* Returns an enumeration describing the available options.
*
* @return an enumeration of all the available options.
*/
public Enumeration listOptions() {
Vector