[2] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[12012] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2] | 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.Collections.Generic;
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[4722] | 23 | using HeuristicLab.Common;
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[2] | 24 | using HeuristicLab.Core;
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[3404] | 25 | using HeuristicLab.Optimization;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2] | 27 |
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| 28 | namespace HeuristicLab.Selection {
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[817] | 29 | /// <summary>
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[3404] | 30 | /// Reduces the sub-scopes, so that the selected sub-scope contains all selected leaves (1) and (2)
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| 31 | /// and the remaining sub-scope contains the sub-scopes of the bottom-most remaining scope (3).
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[850] | 32 | /// <pre>
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[3404] | 33 | /// scope scope
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| 34 | /// / \ / \
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| 35 | /// R S(1) => R S
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| 36 | /// / \ \ /|\ /|\
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| 37 | /// R(3) S(2) C ABCDEF CDEF
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| 38 | /// /|\ /|\
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| 39 | /// ABCDEF DEF
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[850] | 40 | /// </pre>
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[817] | 41 | /// </summary>
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[3404] | 42 | [Item("RightChildReducer", "Merges all sub-scopes generated by successively selecting sub-scopes of the remaining part.")]
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[14711] | 43 | [StorableType("AA768109-8692-4984-B3C8-A43F6CDC51D6")]
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[3404] | 44 | public class RightChildReducer : Reducer, IReducer {
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[4722] | 45 | [StorableConstructor]
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| 46 | protected RightChildReducer(bool deserializing) : base(deserializing) { }
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| 47 | protected RightChildReducer(RightChildReducer original, Cloner cloner) : base(original, cloner) { }
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| 48 | public override IDeepCloneable Clone(Cloner cloner) {
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| 49 | return new RightChildReducer(this, cloner);
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| 50 | }
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| 51 | public RightChildReducer() : base() { }
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[817] | 52 | /// <summary>
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[3404] | 53 | /// Reduces the sub-scopes, so that the selected sub-scope contains all selected leaves
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| 54 | /// and the remaining sub-scope contains the sub-scopes of the bottom-most remaining scope.
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[817] | 55 | /// </summary>
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| 56 | /// <param name="scope">The current scope to reduce.</param>
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| 57 | /// <returns>A list of the new reduced sub scopes.</returns>
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[3404] | 58 | protected override List<IScope> Reduce(List<IScope> scopes) {
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| 59 | IScope rightChild = scopes[scopes.Count - 1];
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| 60 | IScope leftChild = scopes[0];
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| 61 | while (leftChild.SubScopes.Count > 1 && leftChild.SubScopes[0].SubScopes.Count > 0) {
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| 62 | IScope leftRightChild = leftChild.SubScopes[leftChild.SubScopes.Count - 1];
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[2] | 63 |
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[3404] | 64 | // merge right children
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[4489] | 65 | while (leftRightChild.SubScopes.Count > 0) {
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| 66 | IScope leftRightChildChild = leftRightChild.SubScopes[0];
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| 67 | leftRightChild.SubScopes.RemoveAt(0);
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| 68 | rightChild.SubScopes.Add(leftRightChildChild);
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| 69 | }
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[2] | 70 |
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[3404] | 71 | leftChild = leftChild.SubScopes[0];
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| 72 | }
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[2] | 73 | List<IScope> subScopes = new List<IScope>();
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| 74 | subScopes.Add(leftChild);
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| 75 | subScopes.Add(rightChild);
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| 76 | return subScopes;
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| 77 | }
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| 78 | }
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| 79 | }
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