[3294] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 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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| 22 | using System;
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| 23 | using System.Linq;
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[3376] | 24 | using HeuristicLab.Common;
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[3294] | 25 | using HeuristicLab.Core;
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| 26 | using HeuristicLab.Data;
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| 27 | using HeuristicLab.Operators;
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| 28 | using HeuristicLab.Optimization;
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| 29 | using HeuristicLab.Parameters;
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| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[3462] | 31 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Symbols;
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[3294] | 32 | using System.Collections.Generic;
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| 33 | using System.Text;
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[3462] | 34 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Manipulators;
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[3534] | 35 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Interfaces;
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[3294] | 36 |
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[3539] | 37 | namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ArchitectureManipulators {
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[3294] | 38 | /// <summary>
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| 39 | /// Base class for architecture altering operators for symbolic expression trees.
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| 40 | /// </summary>
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| 41 | [StorableClass]
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[3534] | 42 | public abstract class SymbolicExpressionTreeArchitectureManipulator : SymbolicExpressionTreeManipulator, ISymbolicExpressionTreeArchitectureManipulator {
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[3294] | 43 | private const string MaxFunctionArgumentsParameterName = "MaxFunctionArguments";
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| 44 | private const string MaxFunctionDefiningBranchesParameterName = "MaxFunctionDefiningBranches";
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| 45 | public override bool CanChangeName {
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| 46 | get { return false; }
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| 47 | }
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| 48 |
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[3534] | 49 | public IValueLookupParameter<IntValue> MaxFunctionDefinitionsParameter {
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[3294] | 50 | get { return (IValueLookupParameter<IntValue>)Parameters[MaxFunctionDefiningBranchesParameterName]; }
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| 51 | }
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| 52 | public IValueLookupParameter<IntValue> MaxFunctionArgumentsParameter {
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| 53 | get { return (IValueLookupParameter<IntValue>)Parameters[MaxFunctionArgumentsParameterName]; }
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| 54 | }
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| 55 | public IntValue MaxFunctionDefiningBranches {
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[3534] | 56 | get { return MaxFunctionDefinitionsParameter.ActualValue; }
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[3294] | 57 | }
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| 58 | public IntValue MaxFunctionArguments {
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| 59 | get { return MaxFunctionArgumentsParameter.ActualValue; }
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| 60 | }
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[3534] | 61 | public SymbolicExpressionTreeArchitectureManipulator()
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[3294] | 62 | : base() {
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| 63 | Parameters.Add(new ValueLookupParameter<IntValue>(MaxFunctionDefiningBranchesParameterName, "The maximal allowed number of function defining branches."));
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| 64 | Parameters.Add(new ValueLookupParameter<IntValue>(MaxFunctionArgumentsParameterName, "The maximal allowed number of arguments of a newly created function."));
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| 65 | }
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| 66 |
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| 67 | protected override sealed void Manipulate(IRandom random, SymbolicExpressionTree symbolicExpressionTree, ISymbolicExpressionGrammar grammar, IntValue maxTreeSize, IntValue maxTreeHeight, out bool success) {
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| 68 | ModifyArchitecture(random, symbolicExpressionTree, grammar, maxTreeSize, maxTreeHeight, MaxFunctionDefiningBranches, MaxFunctionArguments, out success);
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| 69 | }
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| 70 |
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| 71 | public abstract void ModifyArchitecture(
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| 72 | IRandom random,
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| 73 | SymbolicExpressionTree tree,
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| 74 | ISymbolicExpressionGrammar grammar,
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| 75 | IntValue maxTreeSize,
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| 76 | IntValue maxTreeHeight,
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[3534] | 77 | IntValue maxFunctionDefinitions,
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[3294] | 78 | IntValue maxFunctionArguments,
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| 79 | out bool success
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| 80 | );
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| 81 | }
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| 82 | }
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