source: trunk/HeuristicLab.Problems.Scheduling/3.3/Evaluators/MeanTardinessEvaluator.cs @ 17180

Last change on this file since 17180 was 17180, checked in by swagner, 3 years ago

#2875: Removed years in copyrights

File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Linq;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Encodings.ScheduleEncoding;
27using HeuristicLab.Parameters;
28using HEAL.Attic;
29
30namespace HeuristicLab.Problems.Scheduling {
31  [Item("Mean tardiness Evaluator", "Represents an evaluator using the mean tardiness of a schedule.")]
32  [StorableType("75C00D86-4C81-43EC-A2D4-60736509C97E")]
33  public class MeanTardinessEvaluator : ScheduleEvaluator, IJSSPOperator {
34
35    [StorableConstructor]
36    protected MeanTardinessEvaluator(StorableConstructorFlag _) : base(_) { }
37    protected MeanTardinessEvaluator(MeanTardinessEvaluator original, Cloner cloner) : base(original, cloner) { }
38    public override IDeepCloneable Clone(Cloner cloner) {
39      return new MeanTardinessEvaluator(this, cloner);
40    }
41
42    #region Parameter Properties
43    public ILookupParameter<ItemList<Job>> JobDataParameter {
44      get { return (ILookupParameter<ItemList<Job>>)Parameters["JobData"]; }
45    }
46    #endregion
47
48    public MeanTardinessEvaluator()
49      : base() {
50      Parameters.Add(new LookupParameter<ItemList<Job>>("JobData", "Jobdata defining the precedence relationships and the duration of the tasks in this JSSP-Instance."));
51      QualityParameter.ActualName = "MeanTardiness";
52    }
53
54    public static double GetMeanTardiness(Schedule schedule, ItemList<Job> jobData) {
55      return schedule.Resources
56        .Select(r => Math.Max(0, r.Tasks.Last().EndTime - jobData[r.Tasks.Last().JobNr].DueDate))
57        .Average();
58    }
59
60    protected override double Evaluate(Schedule schedule) {
61      return GetMeanTardiness(schedule, JobDataParameter.ActualValue);
62    }
63  }
64}
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