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Code Issues Releases Wiki Activity

enable search with different insertion strategies

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oblonski 2014-12-10 13:12:15 +01:00
parent c472042781
commit 7ce6a8d68a
6 changed files with 233 additions and 31 deletions
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62
jsprit-core/src/test/java/jsprit/core/algorithm/CVRPwithDeliveriesAndDifferentInsertionStrategies_IT.java Normal file
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/*******************************************************************************
* Copyright (C) 2014 Stefan Schroeder
*
* This library 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 3.0 of the License, or (at your option) any later version.
*
* This library 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 this library. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package jsprit.core.algorithm;
import jsprit.core.algorithm.io.VehicleRoutingAlgorithms;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.io.VrpXMLReader;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import junit.framework.Assert;
import org.junit.Test;
import java.util.Collection;
public class CVRPwithDeliveriesAndDifferentInsertionStrategies_IT {
@Test
public void whenWithTwoInsertionStrategiesWhereOnleOneIsInAlgo_itShouldWork(){
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
new VrpXMLReader(vrpBuilder).read("src/test/resources/vrpnc1-jsprit-with-deliveries.xml");
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "src/test/resources/algorithmConfig_greedyWithRegret.xml");
vra.setMaxIterations(10);
try {
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
Assert.assertTrue(true);
}
catch (Exception e){
Assert.assertTrue(false);
}
}
@Test
public void whenWithTwoInsertionStrategiesWhereBothAreInAlgo_itShouldWork(){
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
new VrpXMLReader(vrpBuilder).read("src/test/resources/vrpnc1-jsprit-with-deliveries.xml");
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "src/test/resources/algorithmConfig_greedyWithRegret_v2.xml");
vra.setMaxIterations(10);
try {
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
Assert.assertTrue(true);
}
catch (Exception e){
Assert.assertTrue(false);
}
}
}

66
jsprit-core/src/test/resources/algorithmConfig_greedyWithRegret.xml Executable file
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<?xml version="1.0" ?>
<!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Copyright (C) 2014 Stefan Schroeder
~
~ This library 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 3.0 of the License, or (at your option) any later version.
~
~ This library 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 this library. If not, see <http://www.gnu.org/licenses/>.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
<algorithm xmlns="http://www.w3schools.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.w3schools.com algorithm_schema.xsd">
<iterations>2000</iterations>
<construction>
<insertion name="regretInsertion">
</insertion>
</construction>
<strategy>
<memory>1</memory>
<searchStrategies>
<searchStrategy name="randomRuinAndRecreate">
<selector name="selectBest"/>
<acceptor name="greedyAcceptance"/>
<modules>
<module name="ruin_and_recreate">
<ruin name="randomRuin">
<share>0.5</share>
</ruin>
<insertion name="bestInsertion"/>
</module>
</modules>
<probability>0.5</probability>
</searchStrategy>
<searchStrategy name="radialRuinAndRecreate">
<selector name="selectBest"/>
<acceptor name="greedyAcceptance"/>
<modules>
<module name="ruin_and_recreate">
<ruin name="radialRuin">
<share>0.3</share>
</ruin>
<insertion name="bestInsertion"/>
</module>
</modules>
<probability>0.5</probability>
</searchStrategy>
</searchStrategies>
</strategy>
</algorithm>

66
jsprit-core/src/test/resources/algorithmConfig_greedyWithRegret_v2.xml Executable file
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<?xml version="1.0" ?>
<!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Copyright (C) 2014 Stefan Schroeder
~
~ This library 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 3.0 of the License, or (at your option) any later version.
~
~ This library 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 this library. If not, see <http://www.gnu.org/licenses/>.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
<algorithm xmlns="http://www.w3schools.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.w3schools.com algorithm_schema.xsd">
<iterations>2000</iterations>
<construction>
<insertion name="regretInsertion">
</insertion>
</construction>
<strategy>
<memory>1</memory>
<searchStrategies>
<searchStrategy name="randomRuinAndRecreate">
<selector name="selectBest"/>
<acceptor name="greedyAcceptance"/>
<modules>
<module name="ruin_and_recreate">
<ruin name="randomRuin">
<share>0.5</share>
</ruin>
<insertion name="bestInsertion"/>
</module>
</modules>
<probability>0.5</probability>
</searchStrategy>
<searchStrategy name="radialRuinAndRecreate">
<selector name="selectBest"/>
<acceptor name="greedyAcceptance"/>
<modules>
<module name="ruin_and_recreate">
<ruin name="radialRuin">
<share>0.3</share>
</ruin>
<insertion name="regretInsertion"/>
</module>
</modules>
<probability>0.5</probability>
</searchStrategy>
</searchStrategies>
</strategy>
</algorithm>