[11450] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System.IO;
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| 23 | using System.Linq;
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| 24 | using HeuristicLab.Algorithms.TabuSearch;
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| 25 | using HeuristicLab.Encodings.PermutationEncoding;
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| 26 | using HeuristicLab.Persistence.Default.Xml;
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| 27 | using HeuristicLab.Problems.Instances.TSPLIB;
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| 28 | using HeuristicLab.Problems.TravelingSalesman;
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| 29 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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| 30 |
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| 31 | namespace HeuristicLab.Tests {
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| 32 | /// <summary>
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| 33 | /// Summary description for TabuSearchTspSampleTest
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| 34 | /// </summary>
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| 35 | [TestClass]
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| 36 | public class TabuSearchTspSampleTest {
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| 37 | private const string samplesDirectory = SamplesUtils.Directory;
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| 38 | [ClassInitialize]
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| 39 | public static void MyClassInitialize(TestContext testContext) {
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| 40 | if (!Directory.Exists(samplesDirectory))
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| 41 | Directory.CreateDirectory(samplesDirectory);
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| 42 | }
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| 43 |
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| 44 |
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| 45 | [TestMethod]
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| 46 | [TestCategory("Samples.Create")]
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| 47 | [TestProperty("Time", "medium")]
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| 48 | public void CreateTabuSearchTspSampleTest() {
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| 49 | var ts = CreateTabuSearchTspSample();
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| 50 | XmlGenerator.Serialize(ts, @"Samples\TS_TSP.hl");
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| 51 | }
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| 52 | [TestMethod]
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| 53 | [TestCategory("Samples.Execute")]
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| 54 | [TestProperty("Time", "long")]
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| 55 | public void RunTabuSearchTspSampleTest() {
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| 56 | var ts = CreateTabuSearchTspSample();
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| 57 | ts.SetSeedRandomly.Value = false;
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| 58 | SamplesUtils.RunAlgorithm(ts);
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| 59 | Assert.AreEqual(6294, SamplesUtils.GetDoubleResult(ts, "BestQuality"));
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| 60 | Assert.AreEqual(7380.0386666666664, SamplesUtils.GetDoubleResult(ts, "CurrentAverageQuality"));
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| 61 | Assert.AreEqual(8328, SamplesUtils.GetDoubleResult(ts, "CurrentWorstQuality"));
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| 62 | Assert.AreEqual(750000, SamplesUtils.GetIntResult(ts, "EvaluatedMoves"));
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| 63 | }
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| 64 |
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| 65 | private TabuSearch CreateTabuSearchTspSample() {
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| 66 | TabuSearch ts = new TabuSearch();
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| 67 | #region Problem Configuration
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| 68 | var provider = new TSPLIBTSPInstanceProvider();
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| 69 | var instance = provider.GetDataDescriptors().Where(x => x.Name == "ch130").Single();
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| 70 | TravelingSalesmanProblem tspProblem = new TravelingSalesmanProblem();
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| 71 | tspProblem.Load(provider.LoadData(instance));
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| 72 | tspProblem.UseDistanceMatrix.Value = true;
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| 73 | #endregion
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| 74 | #region Algorithm Configuration
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| 75 | ts.Name = "Tabu Search - TSP";
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| 76 | ts.Description = "A tabu search algorithm that solves the \"ch130\" TSP (imported from TSPLIB)";
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| 77 | ts.Problem = tspProblem;
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| 78 |
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| 79 | ts.MaximumIterations.Value = 1000;
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| 80 | // move generator has to be set first
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| 81 | var moveGenerator = ts.MoveGeneratorParameter.ValidValues
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| 82 | .OfType<StochasticInversionMultiMoveGenerator>()
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| 83 | .Single();
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| 84 | ts.MoveGenerator = moveGenerator;
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| 85 | var moveEvaluator = ts.MoveEvaluatorParameter.ValidValues
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| 86 | .OfType<TSPInversionMoveRoundedEuclideanPathEvaluator>()
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| 87 | .Single();
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| 88 | ts.MoveEvaluator = moveEvaluator;
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| 89 | var moveMaker = ts.MoveMakerParameter.ValidValues
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| 90 | .OfType<InversionMoveMaker>()
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| 91 | .Single();
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| 92 | ts.MoveMaker = moveMaker;
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| 93 | ts.SampleSize.Value = 750;
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| 94 | ts.Seed.Value = 0;
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| 95 | ts.SetSeedRandomly.Value = true;
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| 96 |
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| 97 | var tabuChecker = ts.TabuCheckerParameter.ValidValues
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| 98 | .OfType<InversionMoveSoftTabuCriterion>()
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| 99 | .Single();
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| 100 | tabuChecker.UseAspirationCriterion.Value = true;
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| 101 | ts.TabuChecker = tabuChecker;
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| 102 |
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| 103 | var tabuMaker = ts.TabuMakerParameter.ValidValues
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| 104 | .OfType<InversionMoveTabuMaker>()
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| 105 | .Single();
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| 106 | ts.TabuMaker = tabuMaker;
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| 107 | ts.TabuTenure.Value = 60;
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| 108 |
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| 109 | #endregion
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| 110 | ts.Engine = new ParallelEngine.ParallelEngine();
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| 111 | return ts;
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| 112 | }
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| 113 | }
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| 114 | }
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