featurevaluestring2featurevector.java

这是一个matlab的java实现。里面有许多内容。请大家慢慢捉摸。

/* Copyright (C) 2002 Univ. of Massachusetts Amherst, Computer Science Dept.
   This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit).
   http://www.cs.umass.edu/~mccallum/mallet
   This software is provided under the terms of the Common Public License,
   version 1.0, as published by http://www.opensource.org.  For further
   information, see the file `LICENSE' included with this distribution. */




/**
	 Convert a String containing space-separated feature-name floating-point-value pairs
	 into a FeatureVector.

   @author Andrew McCallum <a href="mailto:[e-mail]">[e-mail]</a>
 */

package edu.umass.cs.mallet.base.pipe;

import edu.umass.cs.mallet.base.types.TokenSequence;
import edu.umass.cs.mallet.base.types.Token;
import edu.umass.cs.mallet.base.types.Alphabet;
import edu.umass.cs.mallet.base.types.Instance;
import edu.umass.cs.mallet.base.util.Lexer;
import edu.umass.cs.mallet.base.util.CharSequenceLexer;
import java.io.*;
import java.net.URI;
/**
 * Unimplemented.
 */

public class FeatureValueString2FeatureVector extends Pipe implements Serializable
{
	public FeatureValueString2FeatureVector (Alphabet dataDict)
	{
		super (dataDict, null);
	}

	public FeatureValueString2FeatureVector ()
	{
		super(Alphabet.class, null);
	}
	
	public Instance pipe (Instance carrier)
	{
		throw new UnsupportedOperationException ("Not yet implemented");
	}
	
}