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Last change
on this file since 16476 was
16476,
checked in by gkronber, 5 years ago
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#2520: checked and added StorableType attribute in projects up to HeuristicLab.Problems.GraphColoring
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File size:
923 bytes
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| 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 4 | using HEAL.Fossil;
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| 5 |
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| 6 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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| 7 | [StorableType("535830d4-551e-4b53-97e3-9605bd7e785f")]
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| 8 | public class SymbolicExpressionTreeEqualityComparer : IEqualityComparer<ISymbolicExpressionTree> {
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| 9 | [Storable]
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| 10 | public SymbolicExpressionTreeNodeEqualityComparer SimilarityComparer { get; set; }
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| 11 |
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| 12 | public bool Equals(ISymbolicExpressionTree a, ISymbolicExpressionTree b) {
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| 13 | if (SimilarityComparer == null) throw new Exception("SimilarityComparer needs to be initialized first.");
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| 14 | return a.Length == b.Length && SymbolicExpressionTreeMatching.Match(a.Root, b.Root, SimilarityComparer) == Math.Min(a.Length, b.Length);
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| 15 | }
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| 16 |
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| 17 | public int GetHashCode(ISymbolicExpressionTree tree) {
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| 18 | return (tree.Length << 8) % 12345;
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| 19 | }
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| 20 | }
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| 21 | }
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