[6135] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 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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[6503] | 22 | using System.Collections.Generic;
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[6135] | 23 | using System.Linq;
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[6503] | 24 | using System.Text;
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[6135] | 25 | using HeuristicLab.Analysis;
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| 26 | using HeuristicLab.Common;
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| 27 | using HeuristicLab.Core;
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| 28 | using HeuristicLab.Data;
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[6503] | 29 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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[6135] | 30 | using HeuristicLab.Parameters;
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| 31 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 32 |
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| 33 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
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| 34 | [Item("SymbolicDataAnalysisAlleleFrequencyAnalyzer", "")]
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| 35 | [StorableClass]
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| 36 | public sealed class SymbolicDataAnalysisAlleleFrequencyAnalyzer : AlleleFrequencyAnalyzer<ISymbolicExpressionTree>, ISymbolicDataAnalysisAnalyzer {
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| 37 | private const string AlleleTreeDepthParameterName = "AlleleTreeDepth";
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| 38 |
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| 39 | #region parameter properties
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| 40 | public IScopeTreeLookupParameter<ISymbolicExpressionTree> SymbolicExpressionTreeParameter {
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| 41 | get { return SolutionParameter; }
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| 42 | }
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| 43 |
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| 44 | public ILookupParameter<Optimization.ResultCollection> ResultCollectionParameter {
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| 45 | get { return ResultsParameter; }
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| 46 | }
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| 47 |
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[6503] | 48 | public IFixedValueParameter<IntValue> AlleleTreeDepthParameter {
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[6135] | 49 | get { return (IFixedValueParameter<IntValue>)Parameters[AlleleTreeDepthParameterName]; }
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| 50 | }
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| 51 | #endregion
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| 52 | #region properties
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| 53 | public int AlleleTreeDepth {
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| 54 | get { return AlleleTreeDepthParameter.Value.Value; }
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| 55 | set { AlleleTreeDepthParameter.Value.Value = value; }
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| 56 | }
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| 57 | #endregion
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| 58 |
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| 59 | [StorableConstructor]
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| 60 | private SymbolicDataAnalysisAlleleFrequencyAnalyzer(bool deserializing) : base(deserializing) { }
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| 61 | private SymbolicDataAnalysisAlleleFrequencyAnalyzer(SymbolicDataAnalysisAlleleFrequencyAnalyzer original, Cloner cloner) : base(original, cloner) { }
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| 62 | public SymbolicDataAnalysisAlleleFrequencyAnalyzer()
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| 63 | : base() {
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| 64 | Parameters.Add(new FixedValueParameter<IntValue>(AlleleTreeDepthParameterName, "The depth of subtrees that should be considered as allele", new IntValue(2)));
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| 65 | }
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| 66 |
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| 67 | public override IDeepCloneable Clone(Cloner cloner) {
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| 68 | return new SymbolicDataAnalysisAlleleFrequencyAnalyzer(this, cloner);
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| 69 | }
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| 70 |
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| 71 | protected override Allele[] CalculateAlleles(ISymbolicExpressionTree solution) {
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[6728] | 72 | return GetAllSubtreesOfDepth(solution, AlleleTreeDepth)
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| 73 | .AsParallel()
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| 74 | .Select(t => GetAlleleFromSubtreeOfDepth(t, AlleleTreeDepth))
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| 75 | .ToArray();
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[6135] | 76 | }
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| 77 |
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| 78 | private Allele GetAlleleFromSubtreeOfDepth(ISymbolicExpressionTreeNode tree, int d) {
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| 79 | string textualRepresentation = GetTextualRepresentationFromSubtreeOfDepth(tree, d);
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| 80 | return new Allele(textualRepresentation);
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| 81 | }
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| 82 |
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| 83 | private string GetTextualRepresentationFromSubtreeOfDepth(ISymbolicExpressionTreeNode tree, int d) {
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| 84 | if (d == 0) return "";
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| 85 | StringBuilder builder = new StringBuilder();
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| 86 | builder.Append("(" + tree.ToString());
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| 87 | for (int i = 0; i < tree.SubtreesCount; i++) {
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| 88 | builder.Append(" " + GetTextualRepresentationFromSubtreeOfDepth(tree.GetSubtree(i), d - 1));
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| 89 | }
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| 90 | builder.Append(")");
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| 91 | return builder.ToString();
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| 92 | }
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| 93 |
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| 94 | private IEnumerable<ISymbolicExpressionTreeNode> GetAllSubtreesOfDepth(ISymbolicExpressionTree solution, int d) {
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| 95 | return from node in solution.IterateNodesPostfix()
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| 96 | where node.GetDepth() >= d
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| 97 | select node;
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| 98 | }
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| 99 | }
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| 100 | }
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