/*
* GreatDelugeCriterion.java
*
* Copyright (c) 2002-2015 Alexei Drummond, Andrew Rambaut and Marc Suchard
*
* This file is part of BEAST.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* BEAST is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* BEAST 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BEAST; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package dr.inference.ml;
import dr.inference.markovchain.Acceptor;
/**
* This class encapsulates the acception criterion for a GreatDeluge search.
*
* @author Andrew Rambaut
*
* @version $Id: GreatDelugeCriterion.java,v 1.3 2006/06/13 03:50:54 alexei Exp $
*/
public class GreatDelugeCriterion implements Acceptor {
protected double rate;
protected double bound = Double.NEGATIVE_INFINITY;
protected double maxScore = Double.NEGATIVE_INFINITY;
public GreatDelugeCriterion(double rate) {
this.rate = rate;
}
public boolean accept(double oldScore, double newScore, double hastingsRatio, double[] logr) {
// HACK HACK HACK
if (newScore > maxScore) {
maxScore = newScore;
bound = maxScore - 1;
}
if (newScore > bound) {
//if (bound == Double.NEGATIVE_INFINITY) {
// bound = oldScore * 2;
//}
//bound += (newScore - bound) * rate;
return true;
}
return false;
}
}