/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.ml.bayesian;
import org.junit.Assert;
import org.junit.Test;
public class TestBayesNet {
@Test
public void testCount() {
BayesianNetwork network = new BayesianNetwork();
BayesianEvent a = network.createEvent("a");
BayesianEvent b = network.createEvent("b");
BayesianEvent c = network.createEvent("c");
BayesianEvent d = network.createEvent("d");
BayesianEvent e = network.createEvent("e");
network.createDependency(a, b, d, e);
network.createDependency(c, d);
network.createDependency(b, e);
network.createDependency(d, e);
network.finalizeStructure();
Assert.assertEquals(16, network.calculateParameterCount());
}
@Test
public void testIndependant() {
BayesianNetwork network = new BayesianNetwork();
BayesianEvent a = network.createEvent("a");
BayesianEvent b = network.createEvent("b");
BayesianEvent c = network.createEvent("c");
BayesianEvent d = network.createEvent("d");
BayesianEvent e = network.createEvent("e");
network.createDependency(a, b, d, e);
network.createDependency(c, d);
network.createDependency(b, e);
network.createDependency(d, e);
network.finalizeStructure();
Assert.assertFalse( network.isCondIndependent(c,e,a) );
Assert.assertFalse( network.isCondIndependent(b,d,c,e) );
Assert.assertFalse( network.isCondIndependent(a,c,e) );
Assert.assertTrue( network.isCondIndependent(a,c,b) );
}
@Test
public void testIndependant2() {
BayesianNetwork network = new BayesianNetwork();
BayesianEvent a = network.createEvent("a");
BayesianEvent b = network.createEvent("b");
BayesianEvent c = network.createEvent("c");
BayesianEvent d = network.createEvent("d");
network.createDependency(a, b, c);
network.createDependency(b, d);
network.createDependency(c, d);
network.finalizeStructure();
Assert.assertFalse( network.isCondIndependent(b,c) );
Assert.assertFalse( network.isCondIndependent(b,c,d) );
Assert.assertTrue( network.isCondIndependent(a,c,a) );
Assert.assertFalse( network.isCondIndependent(a,c,a,d) );
}
}