/* 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 <a href="mailto:mccallum@cs.umass.edu">mccallum@cs.umass.edu</a>
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);
}
}