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MALLET is a Java-based package for statistical natural language processing, document classification, clustering, topic modeling, information extraction, and other machine learning applications to text.

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/* 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. */




/** 
   @author Andrew McCallum [email protected]

	 Maximize a function projected along a line.
 */

package cc.mallet.optimize;

/** Optimize, constrained to move parameters along the direction of a specified line.
 * The Optimizable object would be either Optimizable.ByValue or Optimizable.ByGradient. */
public interface LineOptimizer
{
	
	/** Returns the last step size used. */
	public double optimize (double[] line, double initialStep);

	public interface ByGradient	{
		/** Returns the last step size used. */
		public double optimize (double[] line, double initialStep);
	}
	
}