001    /*

002     * JNI_SVM-light - A Java Native Interface for SVM-light

003     * 

004     * Copyright (C) 2005 

005     * Tom Crecelius & Martin Theobald 

006     * Max-Planck Institute for Computer Science

007     * 

008     * This program is free software; you can redistribute it and/or modify it under

009     * the terms of the GNU General Public License as published by the Free Software

010     * Foundation.

011     * 

012     * This program is distributed in the hope that it will be useful, but WITHOUT

013     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

014     * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more

015     * details.

016     * 

017     * You should have received a copy of the GNU General Public License along with

018     * this program; if not, write to the Free Software Foundation, Inc., 51

019     * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

020     */

021    

022    package jnisvmlight;

023    

024    import java.io.Serializable;

025    

026    /**

027     * Abstract kernel class.

028     * 

029     * @author Tom Crecelius & Martin Theobald

030     */

031    public abstract class Kernel implements Serializable {

032    

033      protected Kernel m_kernel;

034    

035      protected Kernel() {

036        this.m_kernel = null;

037      }

038    

039      protected Kernel(Kernel nestedKernel) {

040        this.m_kernel = nestedKernel;

041      }

042    

043      abstract public double evaluate(FeatureVector v1, FeatureVector v2);

044    

045      public Kernel getNestedKernel() {

046        return m_kernel;

047      }

048    

049      public void setNestedKernel(Kernel nestedKernel) {

050        m_kernel = nestedKernel;

051      }

052    }