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19:56 Changeset [11486] by bburlacu

#2215: Renamed BottomUpTreeSimilarityCalculator to BottomUpSimilarityCalculator, improved performance by 10% by using the SymbolicExpressionTreeNodeComparer for ordering nodes (instead of string.Compare on node.ToString()). Updated the rest of the files accordingly.

19:10 Changeset [11485] by abeham


  • fixed some bugs
  • changed IsMaximizationProblem/Maximization to be an abstract property
  • changed Analyze to include an empty virtual definition
18:49 Changeset [11484] by abeham

#2174: Major refactoring

  • Removed ProblemDefinitionHosts
  • Renamed ParameterVector to Individual
  • Renamed Configuration to Encoding
  • Changed handling of existing operators that they will not be removed and recreated, but only rewired
10:31 Changeset [11483] by bburlacu

#2211: Updated script unit tests to wait for the script thread to finish before validating results.

01:31 Changeset [11482] by bburlacu

#1772: Added the ability to ignore variable weights or constant values to the BottomUpSimilarityCalculator and added parameters to the SymbolicDataAnalysisBottomUpDiversityAnalyzer. Added separate methods in the MaxCommonSubtreeSimilarityCalculator for performing matching with full subtrees (including all leaves) or without (like the old - and better - behavior).


14:55 Ticket #2266 (Synchronous control methods in IExecutable) created by abeham
Currently, the Start method of an algorithm forwards to the Start …


03:25 Changeset [11481] by swagner

#2205: Worked on optimization networks


14:26 Changeset [11480] by jkarder


  • worked on variable management of VariableStoreView
  • fixed ReadOnly and Locked state changes in ScriptView
  • minor code improvements
12:52 Changeset [11479] by jkarder

#2262: worked on variable management of VariableStoreView

11:43 Changeset [11478] by pfleck


  • Added fall-back for solution parsing to try the own .opt-Format.
  • Parsing uses InvariantCulture instead of a specific one.
  • Small refactoring.
10:44 Changeset [11477] by mkommend

#2262: Refactored Script.GetAssemblies to get rid of the try/catch block.


20:28 Changeset [11476] by bburlacu

#1772: Small changes and improvements to TraceCalculator.cs

20:22 Changeset [11475] by bburlacu

#1772: Small improvement to GenealogyGraph.cs

18:34 Changeset [11474] by jkarder

#2262: applied some of the changes suggested by mkommend in comment:10:ticket:2262

  • renaming is now only possible if one variable is selected; the variable does not have to be focused
  • avoided manual creation of cloner
  • changed drag-and-drop logic; existing variable names are now taken into account when cloning INamedItems
15:52 Changeset [11473] by bburlacu

#1772: Finished the TraceCalculator, added tracing for mutation operations.

15:29 Changeset [11472] by jkarder

#2239: actually fixed IsSerializable

15:04 Changeset [11471] by jkarder

#2262: allow invalid c# identifiers after label edits

12:16 Changeset [11470] by bburlacu

#2265: Moved drag&drop functionality to the Optimizer main forms (Docking, MultipleDocument, SingleDocument).

12:14 Changeset [11469] by bburlacu

#2265: Reversed changes from r11467.

03:57 Changeset [11468] by swagner

#2205: Worked on optimization networks


19:40 Changeset [11467] by bburlacu

#2265: Added drag&drop file loading support. To avoid confusion between files and all the other data types that can be dragged and dropped in HeuristicLab, the drop area for loading files is restricted to the toolbar and menubar of the HL window.

19:37 Ticket #2265 (Support for opening .hl files via drag and drop from windows explorer.) created by bburlacu
It would be very convenient to be able to load .hl files by dragging …
11:54 Changeset [11466] by bburlacu

#2211: Updated grid search start page scripts and unit tests, which now reside in HeuristicLab.Scripting and belong to test category "Scripting".

02:28 Changeset [11465] by swagner

#2205: Worked on optimization networks


09:59 Changeset [11464] by bburlacu

#2234: Moved lock object inside the GridSearch method. Added scaling for the svm partitions.

04:32 Changeset [11463] by swagner

#2205: Worked on optimization networks

01:37 Changeset [11462] by bburlacu

#1772: Fixed bug and improved the SymbolicDataAnalysisUsefulGenesAnalyzer. Fixed very minor typo in the SymbolicDataAnalysisPoly10Analyzer.


17:23 Changeset [11461] by bburlacu

#1772: Implemented poly-10 building blocks analyzer and useful genes analyzer (acts as a sort of "intelligent" pruning method).

15:26 Ticket #2264 (Exporter for symbolic data analysis solutions to C# source code) created by gkronber
13:34 Ticket #2236 (Allow arbitrary transformations of evenly spaced point sequences in ...) closed by mkommend
obsolete: In r11434 and r11435 all transform overloads in the ValueGenerator …
13:17 Changeset [11460] by bburlacu

#1772: HeuristicLab.Encodings.SymbolicExpressionTreeEncoding:

  • SymbolicExpressionTreeLinearCompiler: add public Compile method accepting an ISymbolicExpressionTreeNode
  • SymbolicExpressionTreeStringFormatter: add public Format method accepting an ISymbolicExpressionTreeNode
13:14 Changeset [11459] by bburlacu

#1772: GenealogyGraph: fix serialization
GenealogyGraphNode: Avoid boxing/unboxing with the IEnumerable.Cast<T>

13:03 Changeset [11458] by bburlacu

#1772: HeuristicLab.Problems.DataAnalysis.Symbolic:

  • Merged trunk changes (SymbolicExpressionImporter)
  • Added Passthrough symbol (does not perform an operation, just transfers the input), adjusted interpreter and opcodes accordingly
  • Added diversity preserving crossover
  • Replaced IDistanceCalculator interface with ISymbolicDataAnalysisExpressionSimilarityCalculator and adjusted similarity calculators
  • Refactored tracing, moved functionality to the TraceCalculator (when this is complete the old code will be removed)
12:54 Changeset [11457] by bburlacu

#2218: Moved the SymbolicExpressionImporter from HeuristicLab.Tests to HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Importer.

10:39 Changeset [11456] by pfleck

#2229 Added missing PluginDependency.

10:22 Changeset [11455] by pfleck


  • Added Homberger known solutions.
  • Implemented solution parser in SolomonFormatInstanceProvider.
  • Updated Homberger instances to match the original file names.
  • Changed ordering of VRP instances to natural string ordering.
03:33 Changeset [11454] by swagner

#2205: Worked on optimization networks


14:37 Changeset [11453] by ascheibe

#2263 updated test functions link

14:31 Ticket #2263 (Update TestFunctions Link) created by ascheibe
Should point to …
03:02 Changeset [11452] by swagner

#2205: Worked on optimization networks

00:49 Changeset [11451] by swagner

#2205: Worked on optimization networks


17:36 Changeset [11450] by bburlacu

#2211: Separated samples class into separate test classes. Added scripts unit tests (grid search classification/regression).

03:32 Changeset [11449] by swagner

#2205: Worked on optimization networks


16:24 Changeset [11448] by bburlacu

#2237: Added script to the startpage (forgot to commit changes to StartPage.cs).

14:19 Changeset [11447] by bburlacu

#2234: Added svm grid search scripts to the HeuristicLab start page.

14:17 Changeset [11446] by bburlacu

#2237: Added random forest grid search scripts to the HeuristicLab start page.

14:16 Changeset [11445] by bburlacu

#2237: Fixed cloning and storable constructor access levels

14:03 Changeset [11444] by bburlacu

#2223: Added check to prevent adding an arc when the source and the target are the same vertex.

13:58 Changeset [11443] by bburlacu

#2237: Made random forest parameters serializable (by deriving from ParameterCollection).

12:34 Changeset [11442] by pfleck

#2229 Added specific culture when parsing doubles in Cordeau solution parser.

09:51 Changeset [11441] by mkommend

#2259: Changed expected values for training R² and neg log likelihood in Gaussian Process regression unit test.

08:45 Changeset [11440] by jkarder

#2262: fixed UpdateVariable

08:38 Changeset [11439] by jkarder

#2239: fixed IsSerializable

02:35 Changeset [11438] by swagner

#2205: Worked on optimization networks


18:12 Changeset [11437] by jkarder

#2239: applied a slightly modified version of bburlacu's patch

18:11 ge-depth-first-mapper.png attached to Blog: Grammatical Evolution in HeuristicLab by gkronber
18:11 Blog: Grammatical Evolution in HeuristicLab edited by gkronber
18:06 ge-mapping-process.png attached to Blog: Grammatical Evolution in HeuristicLab by gkronber
18:05 Blog: Grammatical Evolution in HeuristicLab created by gkronber
16:59 Changeset [11436] by jkarder


  • IEnumerable<T> extension methods are supported by the variables collection
  • INamedItem variables get the item's name per default
  • variables can be renamed by pressing F2
  • variables are removed faster
  • multiple variables can be selected
  • the code editor supports scrolling while scripts are executed
16:24 Ticket #2262 (Improve the scripting environment) created by jkarder
Some improvements can be made: * IEnumerable<T> extension methods …
16:11 Ticket #2261 (Gradient Boosted Trees) created by gkronber
15:59 Ticket #2216 (Curve for the baseline is not shown in the ERC view) closed by gkronber
11:25 Changeset [11435] by mkommend

#2259: Added includeEnd paramter to ValueGenerator.GenerateSteps and removed overloads that take a Func for value transformation.

11:15 Changeset [11434] by mkommend

#2259: Changed ValueGenerator to work with decimals instead of doubles to achieve a higher accuracy and adapted all problem instance providers accordingly.

10:06 Changeset [11433] by mkommend

Updated debugger visualizer for symbolic expression trees to work with VS2013.

09:27 Changeset [11432] by pfleck


  • Fixed 2 Bugs in Cordeau parser
    • some solution files contain empty lines
    • depots are not always identified with a zero, but sometimes with their depot number
  • Improved error message in VRP unit test
08:17 Ticket #2260 (For datasets with many variables (>200) the view for variable ...) created by gkronber
updates take a long time
03:10 Changeset [11431] by swagner

#2205: Worked on optimization networks


17:39 Changeset [11430] by mkommend

#2144: Adapted interpreter evaluation test to explicitly check if both values (interpreted and expected) are double.NaN.

16:25 Changeset [11429] by pfleck


  • Implemented parsing of own solution format for Cordeau instances. (Only works for CordeauMD p-class instances yet)
  • Added CordeauMD and CordeauMDTW solution files.
16:21 Changeset [11428] by pfleck


  • The IVRPData now specifies an optional BestKnownTourVehicleAssignment property. This can be used for solutions where a specific assignment for tours to vehicles is necessary.
  • The VRPInterpreter interpret the new BestKnownTourVehicleAssignment directly as VehicleAssignment in the created PotvinEncoding.
  • Minor refactoring in (I)VRPInstanceProvider.
13:15 Changeset [11427] by bburlacu

#2234: Fixed thread synchronisation bug.

13:08 Ticket #2259 (ValueGenerator creates incorrect sequences due to the double ...) created by mkommend
Example: ValueGenerator.GeneratorSteps(0.05, 1, 0.05) produces: …
11:53 Changeset [11426] by bburlacu

#2237: Fixed thread synchronisation bug. Removed unused variables in GridSearch methods.

10:47 Changeset [11425] by gkronber

#2216 merged r11367 from trunk to stable

07:31 Changeset [11424] by abeham

#2174: fixed a casting bug and bugs regarding the parameterization of move operators

03:27 Changeset [11423] by swagner

#2205: Worked on optimization networks


11:01 Changeset [11422] by mkommend

#2255: Reverted r11417 due to broken unit tests.

08:32 Changeset [11421] by swagner

#2205: Worked on optimization networks

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