/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.operator.learner.functions.kernel.jmysvm.optimizer;
/**
* A quadratic optimization problem.
*
* @author Stefan Rueping
* @version $Id: QuadraticProblem.java,v 1.3 2008/05/09 19:23:27 ingomierswa Exp $
*/
public abstract class QuadraticProblem {
// Public variables that describe the quadratic problem
protected int n; // number of variables
static int m = 1; // number of linear constraints, 1 for now
public double[] c;
public double[] H; // c' * x + 1/2 x' * H * x -> min
public double[] A;
public double[] b; // A * x = b
public double[] l;
public double[] u; // l <= x <= u
public double[] x;
public double max_allowed_error;
public QuadraticProblem() {
n = 0;
lambda_eq = 0.0d;
};
public void set_n(int new_n) {
n = new_n;
c = new double[n];
H = new double[n * n];
A = new double[n];
b = new double[n];
l = new double[n];
u = new double[n];
x = new double[n];
};
public int get_n() {
return (n);
};
public double lambda_eq;
protected abstract void calc_lambda_eq();
public abstract int solve();
};