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Last change
on this file since 17388 was
11910,
checked in by bburlacu, 10 years ago
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#2215:
- Unified the similarity and matching/equality classes under the same folder.
- Renamed SymbolicExpressionTreeNodeSimilarityComparer to SymbolicExpressionTreeNodeEqualityComparer, renamed other classes to more descriptive names.
- Removed unused classes (SymbolicDataAnalysisInternalDiversityAnalyzer.cs, SymbolicExpressionTreeMaxCommonSequenceCalculator.cs
- Renamed tests and test files.
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File size:
829 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 |
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| 5 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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| 6 | public class SymbolicExpressionTreeEqualityComparer : IEqualityComparer<ISymbolicExpressionTree> {
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| 7 | public SymbolicExpressionTreeNodeEqualityComparer SimilarityComparer { get; set; }
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| 8 |
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| 9 | public bool Equals(ISymbolicExpressionTree a, ISymbolicExpressionTree b) {
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| 10 | if (SimilarityComparer == null) throw new Exception("SimilarityComparer needs to be initialized first.");
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| 11 | return a.Length == b.Length && SymbolicExpressionTreeMatching.Match(a.Root, b.Root, SimilarityComparer) == Math.Min(a.Length, b.Length);
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| 12 | }
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| 13 |
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| 14 | public int GetHashCode(ISymbolicExpressionTree tree) {
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| 15 | return (tree.Length << 8) % 12345;
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| 16 | }
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| 17 | }
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| 18 | }
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