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source: stable/HeuristicLab.Algorithms.SimulatedAnnealing/3.3/SimulatedAnnealing.cs @ 11569

Last change on this file since 11569 was 11170, checked in by ascheibe, 10 years ago

#2115 updated copyright year in stable branch
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Linq;
25using HeuristicLab.Analysis;
26using HeuristicLab.Common;
27using HeuristicLab.Core;
28using HeuristicLab.Data;
29using HeuristicLab.Operators;
30using HeuristicLab.Optimization;
31using HeuristicLab.Optimization.Operators;
32using HeuristicLab.Parameters;
33using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
34using HeuristicLab.PluginInfrastructure;
35using HeuristicLab.Random;
36
37namespace HeuristicLab.Algorithms.SimulatedAnnealing {
38  [Item("Simulated Annealing", "A simulated annealing algorithm.")]
39  [Creatable("Algorithms")]
40  [StorableClass]
41  public sealed class SimulatedAnnealing : HeuristicOptimizationEngineAlgorithm, IStorableContent {
42    public string Filename { get; set; }
43
44    #region Problem Properties
45    public override Type ProblemType {
46      get { return typeof(ISingleObjectiveHeuristicOptimizationProblem); }
47    }
48    public new ISingleObjectiveHeuristicOptimizationProblem Problem {
49      get { return (ISingleObjectiveHeuristicOptimizationProblem)base.Problem; }
50      set { base.Problem = value; }
51    }
52    #endregion
53
54    #region Parameter Properties
55    private ValueParameter<IntValue> SeedParameter {
56      get { return (ValueParameter<IntValue>)Parameters["Seed"]; }
57    }
58    private ValueParameter<BoolValue> SetSeedRandomlyParameter {
59      get { return (ValueParameter<BoolValue>)Parameters["SetSeedRandomly"]; }
60    }
61    public IConstrainedValueParameter<IMultiMoveGenerator> MoveGeneratorParameter {
62      get { return (IConstrainedValueParameter<IMultiMoveGenerator>)Parameters["MoveGenerator"]; }
63    }
64    public IConstrainedValueParameter<IMoveMaker> MoveMakerParameter {
65      get { return (IConstrainedValueParameter<IMoveMaker>)Parameters["MoveMaker"]; }
66    }
67    public IConstrainedValueParameter<ISingleObjectiveMoveEvaluator> MoveEvaluatorParameter {
68      get { return (IConstrainedValueParameter<ISingleObjectiveMoveEvaluator>)Parameters["MoveEvaluator"]; }
69    }
70    public IConstrainedValueParameter<IDiscreteDoubleValueModifier> AnnealingOperatorParameter {
71      get { return (IConstrainedValueParameter<IDiscreteDoubleValueModifier>)Parameters["AnnealingOperator"]; }
72    }
73    private ValueParameter<IntValue> MaximumIterationsParameter {
74      get { return (ValueParameter<IntValue>)Parameters["MaximumIterations"]; }
75    }
76    private ValueParameter<IntValue> InnerIterationsParameter {
77      get { return (ValueParameter<IntValue>)Parameters["InnerIterations"]; }
78    }
79    private ValueParameter<DoubleValue> StartTemperatureParameter {
80      get { return (ValueParameter<DoubleValue>)Parameters["StartTemperature"]; }
81    }
82    private ValueParameter<DoubleValue> EndTemperatureParameter {
83      get { return (ValueParameter<DoubleValue>)Parameters["EndTemperature"]; }
84    }
85    private ValueParameter<MultiAnalyzer> AnalyzerParameter {
86      get { return (ValueParameter<MultiAnalyzer>)Parameters["Analyzer"]; }
87    }
88    #endregion
89
90    #region Properties
91    public IntValue Seed {
92      get { return SeedParameter.Value; }
93      set { SeedParameter.Value = value; }
94    }
95    public BoolValue SetSeedRandomly {
96      get { return SetSeedRandomlyParameter.Value; }
97      set { SetSeedRandomlyParameter.Value = value; }
98    }
99    public IMultiMoveGenerator MoveGenerator {
100      get { return MoveGeneratorParameter.Value; }
101      set { MoveGeneratorParameter.Value = value; }
102    }
103    public IMoveMaker MoveMaker {
104      get { return MoveMakerParameter.Value; }
105      set { MoveMakerParameter.Value = value; }
106    }
107    public ISingleObjectiveMoveEvaluator MoveEvaluator {
108      get { return MoveEvaluatorParameter.Value; }
109      set { MoveEvaluatorParameter.Value = value; }
110    }
111    public IDiscreteDoubleValueModifier AnnealingOperator {
112      get { return AnnealingOperatorParameter.Value; }
113      set { AnnealingOperatorParameter.Value = value; }
114    }
115    public IntValue MaximumIterations {
116      get { return MaximumIterationsParameter.Value; }
117      set { MaximumIterationsParameter.Value = value; }
118    }
119    public IntValue InnerIterations {
120      get { return InnerIterationsParameter.Value; }
121      set { InnerIterationsParameter.Value = value; }
122    }
123    public DoubleValue StartTemperature {
124      get { return StartTemperatureParameter.Value; }
125      set { StartTemperatureParameter.Value = value; }
126    }
127    public DoubleValue EndTemperature {
128      get { return EndTemperatureParameter.Value; }
129      set { EndTemperatureParameter.Value = value; }
130    }
131    public MultiAnalyzer Analyzer {
132      get { return AnalyzerParameter.Value; }
133      set { AnalyzerParameter.Value = value; }
134    }
135    private RandomCreator RandomCreator {
136      get { return (RandomCreator)OperatorGraph.InitialOperator; }
137    }
138    private SolutionsCreator SolutionsCreator {
139      get { return (SolutionsCreator)RandomCreator.Successor; }
140    }
141    private SimulatedAnnealingMainLoop MainLoop {
142      get { return FindMainLoop(SolutionsCreator.Successor); }
143    }
144    [Storable]
145    private QualityAnalyzer qualityAnalyzer;
146    [Storable]
147    private SingleValueAnalyzer temperatureAnalyzer;
148    #endregion
149
150    [StorableConstructor]
151    private SimulatedAnnealing(bool deserializing) : base(deserializing) { }
152    [StorableHook(HookType.AfterDeserialization)]
153    private void AfterDeserialization() {
154      if (temperatureAnalyzer == null) {
155        temperatureAnalyzer = new SingleValueAnalyzer();
156        temperatureAnalyzer.Name = "TemperatureAnalyzer";
157        temperatureAnalyzer.ResultsParameter.ActualName = "Results";
158        temperatureAnalyzer.ValueParameter.ActualName = "Temperature";
159        temperatureAnalyzer.ValuesParameter.ActualName = "Temperature Chart";
160        Analyzer.Operators.Add(temperatureAnalyzer);
161      }
162      Initialize();
163    }
164    private SimulatedAnnealing(SimulatedAnnealing original, Cloner cloner)
165      : base(original, cloner) {
166      qualityAnalyzer = cloner.Clone(original.qualityAnalyzer);
167      temperatureAnalyzer = cloner.Clone(original.temperatureAnalyzer);
168      Initialize();
169    }
170    public override IDeepCloneable Clone(Cloner cloner) {
171      return new SimulatedAnnealing(this, cloner);
172    }
173    public SimulatedAnnealing()
174      : base() {
175      Parameters.Add(new ValueParameter<IntValue>("Seed", "The random seed used to initialize the new pseudo random number generator.", new IntValue(0)));
176      Parameters.Add(new ValueParameter<BoolValue>("SetSeedRandomly", "True if the random seed should be set to a random value, otherwise false.", new BoolValue(true)));
177      Parameters.Add(new ConstrainedValueParameter<IMultiMoveGenerator>("MoveGenerator", "The operator used to generate moves to the neighborhood of the current solution."));
178      Parameters.Add(new ConstrainedValueParameter<ISingleObjectiveMoveEvaluator>("MoveEvaluator", "The operator used to evaluate a move."));
179      Parameters.Add(new ConstrainedValueParameter<IMoveMaker>("MoveMaker", "The operator used to perform a move."));
180      Parameters.Add(new ConstrainedValueParameter<IDiscreteDoubleValueModifier>("AnnealingOperator", "The operator used to modify the temperature."));
181      Parameters.Add(new ValueParameter<IntValue>("MaximumIterations", "The maximum number of generations which should be processed.", new IntValue(100)));
182      Parameters.Add(new ValueParameter<IntValue>("InnerIterations", "The amount of inner iterations (number of moves before temperature is adjusted again).", new IntValue(10)));
183      Parameters.Add(new ValueParameter<DoubleValue>("StartTemperature", "The initial temperature.", new DoubleValue(100)));
184      Parameters.Add(new ValueParameter<DoubleValue>("EndTemperature", "The final temperature which should be reached when iterations reaches maximum iterations.", new DoubleValue(1e-6)));
185      Parameters.Add(new ValueParameter<MultiAnalyzer>("Analyzer", "The operator used to analyze each generation.", new MultiAnalyzer()));
186
187      RandomCreator randomCreator = new RandomCreator();
188      SolutionsCreator solutionsCreator = new SolutionsCreator();
189      VariableCreator variableCreator = new VariableCreator();
190      ResultsCollector resultsCollector = new ResultsCollector();
191      SimulatedAnnealingMainLoop mainLoop = new SimulatedAnnealingMainLoop();
192      OperatorGraph.InitialOperator = randomCreator;
193
194      randomCreator.RandomParameter.ActualName = "Random";
195      randomCreator.SeedParameter.ActualName = SeedParameter.Name;
196      randomCreator.SeedParameter.Value = null;
197      randomCreator.SetSeedRandomlyParameter.ActualName = SetSeedRandomlyParameter.Name;
198      randomCreator.SetSeedRandomlyParameter.Value = null;
199      randomCreator.Successor = solutionsCreator;
200
201      solutionsCreator.NumberOfSolutions = new IntValue(1);
202      solutionsCreator.Successor = variableCreator;
203
204      variableCreator.Name = "Initialize EvaluatedMoves";
205      variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("EvaluatedMoves", new IntValue()));
206      variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Iterations", new IntValue(0)));
207      variableCreator.Successor = resultsCollector;
208
209      resultsCollector.CollectedValues.Add(new LookupParameter<IntValue>("Evaluated Moves", null, "EvaluatedMoves"));
210      resultsCollector.ResultsParameter.ActualName = "Results";
211      resultsCollector.Successor = mainLoop;
212
213      mainLoop.MoveGeneratorParameter.ActualName = MoveGeneratorParameter.Name;
214      mainLoop.MoveEvaluatorParameter.ActualName = MoveEvaluatorParameter.Name;
215      mainLoop.MoveMakerParameter.ActualName = MoveMakerParameter.Name;
216      mainLoop.AnnealingOperatorParameter.ActualName = AnnealingOperatorParameter.Name;
217      mainLoop.MaximumIterationsParameter.ActualName = MaximumIterationsParameter.Name;
218      mainLoop.TemperatureParameter.ActualName = "Temperature";
219      mainLoop.StartTemperatureParameter.ActualName = StartTemperatureParameter.Name;
220      mainLoop.EndTemperatureParameter.ActualName = EndTemperatureParameter.Name;
221      mainLoop.RandomParameter.ActualName = RandomCreator.RandomParameter.ActualName;
222      mainLoop.ResultsParameter.ActualName = "Results";
223      mainLoop.AnalyzerParameter.ActualName = AnalyzerParameter.Name;
224      mainLoop.EvaluatedMovesParameter.ActualName = "EvaluatedMoves";
225      mainLoop.IterationsParameter.ActualName = "Iterations";
226
227      foreach (IDiscreteDoubleValueModifier op in ApplicationManager.Manager.GetInstances<IDiscreteDoubleValueModifier>().OrderBy(x => x.Name))
228        AnnealingOperatorParameter.ValidValues.Add(op);
229      ParameterizeAnnealingOperators();
230
231      qualityAnalyzer = new QualityAnalyzer();
232      temperatureAnalyzer = new SingleValueAnalyzer();
233      temperatureAnalyzer.Name = "TemperatureAnalyzer";
234      ParameterizeAnalyzers();
235      UpdateAnalyzers();
236
237      Initialize();
238    }
239
240    public override void Prepare() {
241      if (Problem != null && MoveGenerator != null && MoveMaker != null && MoveEvaluator != null)
242        base.Prepare();
243    }
244
245    #region Events
246    protected override void OnProblemChanged() {
247      ParameterizeStochasticOperator(Problem.SolutionCreator);
248      ParameterizeStochasticOperator(Problem.Evaluator);
249      foreach (IOperator op in Problem.Operators.OfType<IOperator>()) ParameterizeStochasticOperator(op);
250      foreach (ISingleObjectiveMoveEvaluator op in Problem.Operators.OfType<ISingleObjectiveMoveEvaluator>()) {
251        op.MoveQualityParameter.ActualNameChanged += new EventHandler(MoveEvaluator_MoveQualityParameter_ActualNameChanged);
252      }
253      ParameterizeSolutionsCreator();
254      ParameterizeMainLoop();
255      UpdateMoveGenerator();
256      UpdateMoveParameters();
257      UpdateAnalyzers();
258      ParameterizeMoveEvaluators();
259      ParameterizeMoveMakers();
260      ParameterizeMoveGenerators();
261      ParameterizeAnalyzers();
262      ParameterizeIterationBasedOperators();
263      Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
264      base.OnProblemChanged();
265    }
266    protected override void Problem_SolutionCreatorChanged(object sender, EventArgs e) {
267      ParameterizeStochasticOperator(Problem.SolutionCreator);
268      ParameterizeSolutionsCreator();
269      base.Problem_SolutionCreatorChanged(sender, e);
270    }
271    protected override void Problem_EvaluatorChanged(object sender, EventArgs e) {
272      ParameterizeStochasticOperator(Problem.Evaluator);
273      ParameterizeSolutionsCreator();
274      ParameterizeMainLoop();
275      ParameterizeMoveEvaluators();
276      ParameterizeMoveMakers();
277      ParameterizeAnalyzers();
278      Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
279      base.Problem_EvaluatorChanged(sender, e);
280    }
281    protected override void Problem_OperatorsChanged(object sender, EventArgs e) {
282      foreach (IOperator op in Problem.Operators.OfType<IOperator>()) ParameterizeStochasticOperator(op);
283      // This may seem pointless, but some operators already have the eventhandler registered, others don't
284      // FIXME: Is there another way to solve this problem?
285      foreach (ISingleObjectiveMoveEvaluator op in Problem.Operators.OfType<ISingleObjectiveMoveEvaluator>()) {
286        op.MoveQualityParameter.ActualNameChanged -= new EventHandler(MoveEvaluator_MoveQualityParameter_ActualNameChanged);
287        op.MoveQualityParameter.ActualNameChanged += new EventHandler(MoveEvaluator_MoveQualityParameter_ActualNameChanged);
288      }
289      UpdateMoveGenerator();
290      UpdateMoveParameters();
291      UpdateAnalyzers();
292      ParameterizeMainLoop();
293      ParameterizeMoveEvaluators();
294      ParameterizeMoveMakers();
295      ParameterizeMoveGenerators();
296      ParameterizeIterationBasedOperators();
297      base.Problem_OperatorsChanged(sender, e);
298    }
299    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
300      ParameterizeMainLoop();
301      ParameterizeMoveEvaluators();
302      ParameterizeMoveMakers();
303      ParameterizeAnalyzers();
304    }
305    private void MoveGeneratorParameter_ValueChanged(object sender, EventArgs e) {
306      UpdateMoveParameters();
307    }
308    private void MoveEvaluatorParameter_ValueChanged(object sender, EventArgs e) {
309      ParameterizeMainLoop();
310      ParameterizeMoveEvaluators();
311      ParameterizeMoveMakers();
312    }
313    private void MoveEvaluator_MoveQualityParameter_ActualNameChanged(object sender, EventArgs e) {
314      ParameterizeMainLoop();
315      ParameterizeMoveEvaluators();
316      ParameterizeMoveMakers();
317    }
318    #endregion
319
320    #region Helpers
321    private void Initialize() {
322      if (Problem != null) {
323        Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
324        foreach (ISingleObjectiveMoveEvaluator op in Problem.Operators.OfType<ISingleObjectiveMoveEvaluator>()) {
325          op.MoveQualityParameter.ActualNameChanged += new EventHandler(MoveEvaluator_MoveQualityParameter_ActualNameChanged);
326        }
327      }
328      MoveGeneratorParameter.ValueChanged += new EventHandler(MoveGeneratorParameter_ValueChanged);
329      MoveEvaluatorParameter.ValueChanged += new EventHandler(MoveEvaluatorParameter_ValueChanged);
330    }
331    private void UpdateMoveGenerator() {
332      IMultiMoveGenerator oldMoveGenerator = MoveGenerator;
333      IMultiMoveGenerator defaultMoveGenerator = Problem.Operators.OfType<IMultiMoveGenerator>().FirstOrDefault();
334      MoveGeneratorParameter.ValidValues.Clear();
335      if (Problem != null) {
336        foreach (IMultiMoveGenerator generator in Problem.Operators.OfType<IMultiMoveGenerator>().OrderBy(x => x.Name))
337          MoveGeneratorParameter.ValidValues.Add(generator);
338      }
339      if (oldMoveGenerator != null) {
340        IMultiMoveGenerator newMoveGenerator = MoveGeneratorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMoveGenerator.GetType());
341        if (newMoveGenerator != null) MoveGenerator = newMoveGenerator;
342        else oldMoveGenerator = null;
343      }
344      if (oldMoveGenerator == null && defaultMoveGenerator != null)
345        MoveGenerator = defaultMoveGenerator;
346      if (MoveGenerator == null) {
347        ClearMoveParameters();
348      }
349    }
350    private void ParameterizeAnalyzers() {
351      qualityAnalyzer.ResultsParameter.ActualName = "Results";
352      if (Problem != null) {
353        qualityAnalyzer.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
354        qualityAnalyzer.MaximizationParameter.Hidden = true;
355        qualityAnalyzer.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
356        qualityAnalyzer.QualityParameter.Depth = 0;
357        qualityAnalyzer.QualityParameter.Hidden = true;
358        qualityAnalyzer.BestKnownQualityParameter.ActualName = Problem.BestKnownQualityParameter.Name;
359        qualityAnalyzer.BestKnownQualityParameter.Hidden = true;
360      } else {
361        qualityAnalyzer.MaximizationParameter.Hidden = false;
362        qualityAnalyzer.QualityParameter.Hidden = false;
363        qualityAnalyzer.BestKnownQualityParameter.Hidden = false;
364        temperatureAnalyzer.ResultsParameter.ActualName = "Results";
365        temperatureAnalyzer.ValueParameter.ActualName = "Temperature";
366        temperatureAnalyzer.ValuesParameter.ActualName = "Temperature Chart";
367      }
368    }
369    private void UpdateMoveParameters() {
370      IMoveMaker oldMoveMaker = MoveMaker;
371      ISingleObjectiveMoveEvaluator oldMoveEvaluator = MoveEvaluator;
372      ClearMoveParameters();
373
374      if (MoveGenerator != null) {
375        List<Type> moveTypes = MoveGenerator.GetType().GetInterfaces().Where(x => typeof(IMoveOperator).IsAssignableFrom(x)).ToList();
376        foreach (Type type in moveTypes.ToList()) {
377          if (moveTypes.Any(t => t != type && type.IsAssignableFrom(t)))
378            moveTypes.Remove(type);
379        }
380        var operators = Problem.Operators.Where(op => moveTypes.Any(m => m.IsInstanceOfType(op))).ToList();
381        IMoveMaker defaultMoveMaker = operators.OfType<IMoveMaker>().FirstOrDefault();
382        ISingleObjectiveMoveEvaluator defaultMoveEvaluator = operators.OfType<ISingleObjectiveMoveEvaluator>().FirstOrDefault();
383
384        foreach (IMoveMaker moveMaker in operators.OfType<IMoveMaker>().OrderBy(op => op.Name))
385          MoveMakerParameter.ValidValues.Add(moveMaker);
386        foreach (ISingleObjectiveMoveEvaluator moveEvaluator in operators.OfType<ISingleObjectiveMoveEvaluator>().OrderBy(op => op.Name))
387          MoveEvaluatorParameter.ValidValues.Add(moveEvaluator);
388
389        if (oldMoveMaker != null) {
390          IMoveMaker mm = MoveMakerParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMoveMaker.GetType());
391          if (mm != null) MoveMaker = mm;
392          else oldMoveMaker = null;
393        }
394        if (oldMoveMaker == null && defaultMoveMaker != null)
395          MoveMaker = defaultMoveMaker;
396
397        if (oldMoveEvaluator != null) {
398          ISingleObjectiveMoveEvaluator me = MoveEvaluatorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMoveEvaluator.GetType());
399          if (me != null) MoveEvaluator = me;
400          else oldMoveEvaluator = null;
401        }
402        if (oldMoveEvaluator == null & defaultMoveEvaluator != null)
403          MoveEvaluator = defaultMoveEvaluator;
404      }
405    }
406    private void ClearMoveParameters() {
407      MoveMakerParameter.ValidValues.Clear();
408      MoveEvaluatorParameter.ValidValues.Clear();
409    }
410    private void ParameterizeSolutionsCreator() {
411      SolutionsCreator.EvaluatorParameter.ActualName = Problem.EvaluatorParameter.Name;
412      SolutionsCreator.SolutionCreatorParameter.ActualName = Problem.SolutionCreatorParameter.Name;
413    }
414    private void ParameterizeMainLoop() {
415      if (Problem != null) {
416        MainLoop.BestKnownQualityParameter.ActualName = Problem.BestKnownQualityParameter.Name;
417        MainLoop.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
418        MainLoop.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
419      }
420      if (MoveEvaluator != null)
421        MainLoop.MoveQualityParameter.ActualName = MoveEvaluator.MoveQualityParameter.ActualName;
422    }
423    private void ParameterizeStochasticOperator(IOperator op) {
424      if (op is IStochasticOperator) {
425        IStochasticOperator stOp = (IStochasticOperator)op;
426        stOp.RandomParameter.ActualName = RandomCreator.RandomParameter.ActualName;
427        stOp.RandomParameter.Hidden = true;
428      }
429    }
430    private void ParameterizeMoveEvaluators() {
431      foreach (ISingleObjectiveMoveEvaluator op in Problem.Operators.OfType<ISingleObjectiveMoveEvaluator>()) {
432        op.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
433        op.QualityParameter.Hidden = true;
434      }
435    }
436    private void ParameterizeMoveMakers() {
437      foreach (IMoveMaker op in Problem.Operators.OfType<IMoveMaker>()) {
438        op.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
439        op.QualityParameter.Hidden = true;
440        if (MoveEvaluator != null) {
441          op.MoveQualityParameter.ActualName = MoveEvaluator.MoveQualityParameter.ActualName;
442          op.MoveQualityParameter.Hidden = true;
443        } else {
444          op.MoveQualityParameter.Hidden = false;
445        }
446      }
447    }
448    private void ParameterizeAnnealingOperators() {
449      foreach (IDiscreteDoubleValueModifier op in AnnealingOperatorParameter.ValidValues) {
450        op.IndexParameter.ActualName = "Iterations";
451        op.IndexParameter.Hidden = true;
452        op.StartIndexParameter.Value = new IntValue(0);
453        op.EndIndexParameter.ActualName = MaximumIterationsParameter.Name;
454        op.ValueParameter.ActualName = "Temperature";
455        op.ValueParameter.Hidden = true;
456        op.StartValueParameter.ActualName = StartTemperatureParameter.Name;
457        op.StartValueParameter.Hidden = true;
458        op.EndValueParameter.ActualName = EndTemperatureParameter.Name;
459        op.EndValueParameter.Hidden = true;
460        ParameterizeStochasticOperator(op);
461      }
462    }
463    private void ParameterizeMoveGenerators() {
464      foreach (IMultiMoveGenerator op in Problem.Operators.OfType<IMultiMoveGenerator>()) {
465        op.SampleSizeParameter.ActualName = InnerIterationsParameter.Name;
466        op.SampleSizeParameter.Hidden = true;
467      }
468    }
469    private void ParameterizeIterationBasedOperators() {
470      if (Problem != null) {
471        foreach (IIterationBasedOperator op in Problem.Operators.OfType<IIterationBasedOperator>()) {
472          op.IterationsParameter.ActualName = "Iterations";
473          op.IterationsParameter.Hidden = true;
474          op.MaximumIterationsParameter.ActualName = MaximumIterationsParameter.Name;
475          op.MaximumIterationsParameter.Hidden = true;
476        }
477      }
478    }
479    private void UpdateAnalyzers() {
480      Analyzer.Operators.Clear();
481      if (Problem != null) {
482        foreach (IAnalyzer analyzer in Problem.Operators.OfType<IAnalyzer>()) {
483          foreach (IScopeTreeLookupParameter param in analyzer.Parameters.OfType<IScopeTreeLookupParameter>())
484            param.Depth = 0;
485          Analyzer.Operators.Add(analyzer, analyzer.EnabledByDefault);
486        }
487      }
488      Analyzer.Operators.Add(qualityAnalyzer, qualityAnalyzer.EnabledByDefault);
489      Analyzer.Operators.Add(temperatureAnalyzer, temperatureAnalyzer.EnabledByDefault);
490    }
491    private SimulatedAnnealingMainLoop FindMainLoop(IOperator start) {
492      IOperator mainLoop = start;
493      while (mainLoop != null && !(mainLoop is SimulatedAnnealingMainLoop))
494        mainLoop = ((SingleSuccessorOperator)mainLoop).Successor;
495      if (mainLoop == null) return null;
496      else return (SimulatedAnnealingMainLoop)mainLoop;
497    }
498    #endregion
499  }
500}
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