[7970] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2012 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 HeuristicLab.Common;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.Parameters;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 |
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| 28 | namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment {
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| 29 | [Item("GQAPAdditivePenaltyEvaluator", "Evaluates solutions to the generalized quadratic assignment problem using an additive penalty strategy. The overbooked capacities are multiplied by the penalty and added to the quality.")]
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| 30 | [StorableClass]
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| 31 | public class GQAPAdditivePenaltyEvaluator : GQAPEvaluator {
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| 32 | public static readonly string OverbookedCapacityPenaltyDescription = "The multiplier for the constraint violation when added to the quality.";
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| 33 |
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| 34 | protected IValueParameter<DoubleValue> OverbookedCapacityPenaltyParameter {
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| 35 | get { return (IValueParameter<DoubleValue>)Parameters["OverbookedCapacityPenalty"]; }
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| 36 | }
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| 37 |
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| 38 | public DoubleValue OverbookedCapacity {
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| 39 | get { return OverbookedCapacityPenaltyParameter.Value; }
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| 40 | set { OverbookedCapacityPenaltyParameter.Value = value; }
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| 41 | }
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| 42 |
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| 43 | [StorableConstructor]
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| 44 | protected GQAPAdditivePenaltyEvaluator(bool deserializing) : base(deserializing) { }
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| 45 | protected GQAPAdditivePenaltyEvaluator(GQAPAdditivePenaltyEvaluator original, Cloner cloner) : base(original, cloner) { }
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| 46 | public GQAPAdditivePenaltyEvaluator()
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| 47 | : base() {
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| 48 | Parameters.Add(new ValueParameter<DoubleValue>("OverbookedCapacityPenalty", OverbookedCapacityPenaltyDescription, new DoubleValue(1000000), true));
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| 49 | }
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| 50 |
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| 51 | public override IDeepCloneable Clone(Cloner cloner) {
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| 52 | return new GQAPAdditivePenaltyEvaluator(this, cloner);
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| 53 | }
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| 54 |
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| 55 | public override double GetFitness(double flowDistanceQuality,
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| 56 | double installationQuality, double overbookedCapacity,
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| 57 | double transportationCosts, double expectedRandomQuality) {
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| 58 | return installationQuality
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| 59 | + transportationCosts * flowDistanceQuality
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| 60 | + OverbookedCapacity.Value * overbookedCapacity;
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| 61 | }
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| 62 | }
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| 63 | }
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