/*
* This file is part of Caliph & Emir.
*
* Caliph & Emir 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.
*
* Caliph & Emir 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 Caliph & Emir; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright statement:
* --------------------
* (c) 2002-2005 by Mathias Lux (mathias@juggle.at)
* http://www.juggle.at, http://caliph-emir.sourceforge.net
*/
package at.lux.retrieval.clustering;
/**
* Date: 07.02.2005
* Time: 22:20:43
*
* @author Mathias Lux, mathias@juggle.at
*/
public interface SimilarityCalculator {
/**
* Returns the similarity between the two objects or -1 if they cannot be compared.
* @param o1
* @param o2
* @return the similarity between the two objects or -1 if they cannot be compared.
*/
public float getSimilarity(Object o1, Object o2);
}