HeuristicLab Change Log

Contents

1. HeuristicLab 3.3.16 "Prague" - July 31st, 2019
2. HeuristicLab 3.3.15 "Berlin" - January 11th, 2018
3. HeuristicLab 3.3.14 "Denver" - July 24th, 2016
4. HeuristicLab 3.3.13 "Windischgarsten" - November 20th, 2015
5. HeuristicLab 3.3.12 "Madrid" - July 13th, 2015
6. HeuristicLab 3.3.11 "Beach Bar" - February 13th, 2015
7. HeuristicLab 3.3.10 "Vancouver" - July 10th, 2014
8. HeuristicLab 3.3.9 - October 11th, 2013
9. HeuristicLab 3.3.8 "Ann Arbor" - May 10th, 2013
10. HeuristicLab 3.3.7 "Philadelphia" - July 8th, 2012
11. HeuristicLab 3.3.6 - January 3rd, 2012
12. HeuristicLab 3.3.5 "Dublin" - July 9th, 2011
13. HeuristicLab 3.3.4 - May 4th, 2011
14. HeuristicLab 3.3.3 "Las Palmas" - February 5th, 2011
15. HeuristicLab 3.3.2 - November 22nd, 2010
16. HeuristicLab 3.3.1 - September 29th, 2010
17. HeuristicLab 3.3.0 - May 18th, 2010

HeuristicLab 3.3.16 "Prague" - July 31st, 2019

• Download HeuristicLab 3.3.16 binaries for all CPU types

The changes made in HeuristicLab 3.3.16 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#1973	Algorithms.DataAnalysis	Support more than 256 variables in linear regression models
#2847	Algorithms.DataAnalysis	Implement M5'-(Meta-)-Regression
#2883	Algorithms.DataAnalysis	Option to store actual model instead of a surrogate-model for GBT-Solutions
#2892	Algorithms.DataAnalysis	Prediction intervals for linear regression models
#2902	Algorithms.DataAnalysis	Performance improvement of NaN/Inf-check on a double-matrix
#2904	Algorithms.DataAnalysis	Create new CalculateImpacts method for a set of variables
#2942	Algorithms.DataAnalysis	KNN-Regression/Classification should allow "self" points
#2952	Algorithms.DataAnalysis	Option to store actual model instead of a surrogate-model for RandomForest-Solutions
#2956	Algorithms.DataAnalysis	Integration of A Priori Knowledge for Symbolic Regression
#2874	Algorithms.DataAnalysis.Views	Widgets for workers and folds are not aligned correctly in the CrossValidationView
#2890	Algorithms.DataAnalysis.Views	Overhaul of GradientBoostedTreesModelView
#2916	Analysis	Improve serialization of IndexedDataTable
#2947	Analysis.Views	Configure Dialog for IndexedDataTableView
#2930	Clients.OKB	Prevent UI-Freeze in case of Endpoint-Failure
#1616	Core.Views	CheckedItemCollectionView should have an option to select / deselect all items
#2919	Data	Packed storage matrix type
#2960	Data	Row and Column query methods for StringMatrix
#2435	ExtLibs	Update AlgLib to most recent version
#2926	ExtLibs	Update Sim# version
#2975	ExtLibs	Update Sim# to 3.1.1
#2931	General	Integration of LP and MIP Solvers based on Google OR-Tools in HeuristicLab
#2951	General	Update Build.cmd and Test.cmd to use newer versions of MSBuild
#2839	Hive.General	Implement project management for Hive
#2877	Hive.General	Hive Improvements
#2845	MainForm	Enhance Progress(View)
#2876	Optimization.Views	Open BubbleChart from Boxplot View
#2885	Optimization.Views	Select all with Ctrl+A in RunCollectionView
#3005	Parameters	There should be an option to make ValueParameters read only
#2520	Persistence	Persistence Overhaul
#2965	Persistence	Cancelable Save (to File) Command
#2884	Problems.DataAnalysis	Implement variable impacts for classification solutions
#2935	Problems.DataAnalysis	It should be possible to insert a variable at a specific position in the ModifiableDataset
#2955	Problems.DataAnalysis	Improve evaluating models on new data
#2966	Problems.DataAnalysis	Implement Intervals and according calculation rules
#3002	Problems.DataAnalysis	Build dataset with row-wise data
#2866	Problems.DataAnalysis.Symbolic	Hyperbolic functions for symbolic regression
#2911	Problems.DataAnalysis.Symbolic	Add TSQL Formatter for ISymbolicExpressionTreeStringFormatter
#2915	Problems.DataAnalysis.Symbolic	Add support for abs(x), AQ(x) and CubeRoot(x) for symbolic regression problems
#2937	Problems.DataAnalysis.Symbolic	Support for "analytical quotient" function in symbolic regression
#2948	Problems.DataAnalysis.Symbolic	Symbolic differentiation
#2950	Problems.DataAnalysis.Symbolic	Support hash-based simplification of symbolic expressions
#2954	Problems.DataAnalysis.Symbolic	CubeRoot symbol
#2958	Problems.DataAnalysis.Symbolic	Vectorized/batch-mode interpreter for symbolic expression trees
#2991	Problems.DataAnalysis.Symbolic	DiversitySelector for symbolic data analysis problems
#2998	Problems.DataAnalysis.Symbolic	Allow specification of floating point number format for the InfixFormatter
#2361	Problems.DataAnalysis.Symbolic.Classification	Adapted symbolic classification evaluators to increase the sensitivity of a model
#2977	Problems.DataAnalysis.Symbolic.Regression	Pearson R2 & Tree Similarity Multiobjective Evaluator
#2871	Problems.DataAnalysis.Views	The Order of VariableImpacts should be changeable
#2888	Problems.DataAnalysis.Views	Disallow zoom in Partial Dependence Plots
#2972	Problems.DataAnalysis.Views	Select Row for Partial Dependence Plot
#2923	Problems.Instances	Penn ML Benchmark Problem Instances
#2932	Problems.Instances	CSV import dialog should choose system values as default
#2957	Problems.Instances	Implement symbolic regression problem instances from "A multilevel block building algorithm for fast modeling generalized separable systems"
#3014	Problems.Instances	Extend physics problems to allow testing with simulated noise

Bugs:

Ticket	Component	Summary
#2891	Algorithms.DataAnalysis	Neural network evaluation is not thread-safe
#2905	Algorithms.DataAnalysis	Partial dependence plots throws exception for support vector regression solutions
#2909	Algorithms.DataAnalysis	NCAModelCreator throws exception
#2940	Algorithms.DataAnalysis	Linear regression drops the constant offset if only string variables are used for modeling
#2941	Algorithms.DataAnalysis	Allow zero-variance features in k-nearest Neighbours
#3004	Algorithms.GeneticAlgorithm	IslandGA parameterizes Evaluator's Random to GlobalRandom instead of LocalRandom
#2928	Algorithms.NSGA2	NSGA-II is created with 0% mutation probability by default
#2879	Analysis.Views	Cancelling a DataTableVisualPropertiesDialog may take very long and block GUI
#2992	Common	External Evaluation leads to Exceptions during Object Graph Traversal
#2949	Core.Views	AutoResize of columns in ItemListView reduces GUI update performance massively
#3010	Core.Views	Checked item views are slow when a lot of items are checked at once
#3013	DataPreprocessing	DataPreprocessing should not be Storable
#3006	DataPreprocessing.Views	DataCompleteness Chart has Histogram View set as view name
#3008	DataPreprocessing.Views	Search and Replace in Data Preprocessing is inverted
#2986	Encodings.IntegerVectorEncoding	RoundedNormalAllPositionsManipulator applies bounds incorrectly
#2962	Encodings.SymbolicExpressionTreeEncoding	Subtree crossover distribution test displays incorrect statistics
#2900	General	Upgrade .NET framework
#2961	Hive.Slave	Hive slave does not properly unload plugins
#2561	Optimization	TimeLimitRun does not work with the Hive Slave
#2740	Optimization	Multi encoding operators are not parameterized correctly
#2855	Optimization	Showing the encoding or its operators in the run is highly wasteful
#2894	Optimization	Snapshots not initialized in TimeLimitRun
#2933	Optimization	Parallel experiment execution can lead to identical seeds
#2880	Optimization.Views	RunCollectionBoxPlotView axis-selection bug with DropDown
#2978	Optimization.Views	Enabling & disabling of controls in HL is slow
#2995	Optimization.Views	Support DateTimeValues in the RunCollectionBubbleChartView
#3000	Optimization.Views	RunLengthDistributionView shows incorrect values for runs in which the target is reached in the last generation
#2897	Problems.DataAnalysis	Dataset (and ModifiableDataset) constructor accepts unsupported values
#2910	Problems.DataAnalysis	ImpactCalculation for IDiscriminantClassificationSolutions is wrong
#2934	Problems.DataAnalysis	InputVariables of ProblemData can be renamed in the GUI
#2939	Problems.DataAnalysis	Variables cannot be added to an empty ModifiableDataset
#2959	Problems.DataAnalysis.Symbolic	Issues with the bottom-up similarity calculator
#3001	Problems.DataAnalysis.Symbolic	The excel formatter produces incorrect output for divisions (1/1*x)
#3015	Problems.DataAnalysis.Symbolic	Fix bug and improve robustness of SimplifyMultiplication
#2912	Problems.DataAnalysis.Symbolic.Classification	PositiveClass value not preserved in the SolutionComparisonView
#2878	Problems.DataAnalysis.Symbolic.Regression	Error in Deserialization of ConstantOptimizationEvaluator
#2844	Problems.DataAnalysis.Symbolic.Regression.Views	The number of iterations for constant optimization is fixed in the simplifier view
#2964	Problems.DataAnalysis.Symbolic.Views	'Mathematical representation' does not work
#2383	Problems.DataAnalysis.Views	Some charts for regression solutions throw an exception if the target variable contains missing values
#2856	Problems.DataAnalysis.Views	In the partial dependence plots the histograms are not updated when the axis range of the corresponding line chart is changed.
#2914	Problems.DataAnalysis.Views	ResidualAnalysisView hides double columns containing NaN
#2953	Problems.ExternalEvaluation	Multi-objective external evaluation problem does not filter single-objective operators
#2908	Problems.Instances	Make ResourceRegressionInstanceProvider csv functionality useable from another assembly
#2976	Random	SampleProportionalWithoutRepetition with Windowing may cause a NullReferenceException
#2967	Scripting	Ctrl+Z removes all code in C# scripts
#2982	Scripting.Views	VariableStoreView does not update variable values correctly
#2999	Tests	Skip ContentViewAttributeTest for views that use System.Windows.Forms.WebBrowser

Tasks:

Ticket	Component	Summary
#2875	General	Release HeuristicLab 3.3.16
#2887	General	Restructure HL SVN repository

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HeuristicLab 3.3.15 "Berlin" - January 11th, 2018

• Download HeuristicLab 3.3.15 binaries for all CPU types

The changes made in HeuristicLab 3.3.15 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2592	Algorithms.CMAEvolutionStrategy	MO-CMA-ES for Realnumbered Problem
#745	Algorithms.DataAnalysis	More advanced linear regression methods with included feature selection
#2581	Algorithms.DataAnalysis	Monte Carlo Tree Search (MCTS) for symbolic regression models
#2631	Algorithms.DataAnalysis	Confidence Intervals for Random Forest Regression
#2657	Algorithms.DataAnalysis	Possibility to do multiple random restarts for non-linear regression (curve fitting) algorithm
#2687	Algorithms.DataAnalysis	Support for time lags in non-linear function fitting
#2699	Algorithms.DataAnalysis	Radial Basis Function Regression
#2700	Algorithms.DataAnalysis	t-Distributed Stochastic Neighbor Embedding
#2734	Algorithms.DataAnalysis	Linear models represented should use the linear tree interpreter for evaluation
#2755	Algorithms.DataAnalysis	For gradient boosted trees with LogisticRegressionLoss the threshold for the discriminant function should be set to zero.
#2760	Algorithms.DataAnalysis	Shuffle samples in the cross-validation wrapper for data analysis algorithms
#2771	Algorithms.DataAnalysis	Support for factor variables in elastic net regression
#2782	Algorithms.DataAnalysis	Gaussian process regression should also calculate the leave-one-out predictive probability
#2850	Algorithms.DataAnalysis	Extend tSNE with relevance weights
#2862	Algorithms.DataAnalysis	NLR yields suboptimal results
#2690	Algorithms.DataAnalysis.Views	Implement views for decision tree models (random forest and gradient boosted trees)
#2715	Algorithms.DataAnalysis.Views	Multiple Histogram DataRows in DataTableView
#2792	Algorithms.GeneticAlgorithm	Genetic algorithm should choose a mutation operator by default
#2634	Analysis	Run-length distribution (RLD) Analysis of Algorithm Instances
#2744	Analysis	Add content and view for Gantt visualization
#2713	Analysis.Views	Configuration Context Menu for DataTableView and ScatterPlotView
#2765	Analysis.Views	ScatterPlot should support tag objects
#2729	Core	Allow excluding generic type in item attribute
#2732	Data	GetRow and GetColumn iterators for ValueTypeMatrix<T>
#2674	Data.Views	Copy&paste should also copy the row names for DoubleArrays
#2724	Data.Views	EnumValueView should consider the FlagsAttribute
#2809	DataPreprocessing	Remove "Logic" Classes in DataPreprocessing
#2663	DataPreprocessing.Views	Make Linechart and Histrogram of DataPreprocessing more userfriendly
#2693	DataPreprocessing.Views	Allow multi-selection for columns in the datagrid in the data-preprocessing tool
#2698	DataPreprocessing.Views	Multi-Scatterplot in Preprocessing crashes HL with high number of variables
#2709	DataPreprocessing.Views	DataPreprocessing Enhancements
#2761	DataPreprocessing.Views	DataPreprocessing should show the TypeSelectorDialog for creating filters
#2730	Encodings	Add similarity calculators and equality comparers for encodings
#2666	Encodings.LinearLinkageEncoding	Improve Performance of LinearLinkageEncoding
#2731	Encodings.PermutationEncoding	Improve performance of certain manipulations on Permutation
#2651	ExtLibs	Integrate igraph in HeuristicLab
#2814	General	Remove CreatorsUpdate Quick-Fix
#2821	General	Remove Creators-Update-Info in ChangeNestingLevelDialog
#2743	Hive.General	Overhaul HL services
#2835	Hive.General	Check service identity using the certificate's DNS/SN instead of the certificate itself
#2791	Hive.Slave	Checkpointing within Hive slaves should be improved
#2258	Optimization	Executable.Start executes it asynchronously
#2524	Optimization	It should be possible to pause BasicAlgorithms
#2774	Optimization	Individuals should be able to store additional data
#2783	Optimization	Provide useful helper methods in BasicProblem
#2822	Optimization	Support Running Experiments in Parallel
#2758	Optimization.Views	RunCollectionView is too slow
#2800	Optimization.Views	Hiding lots of runs in the BubbleChart should be faster
#2736	Problems	Implement Graph Coloring Problem
#2739	Problems.BinPacking	Improve binpacking visualization
#2762	Problems.BinPacking	New heuristics for BinPacking
#2706	Problems.Binary	Binary problems should include similarity calculators for population diversity analysis
#2649	Problems.DataAnalysis	OnlineNMSECalculator should use population variance instead of sample variance
#2672	Problems.DataAnalysis	Online calculators should be cloneable
#2697	Problems.DataAnalysis	Refactor certain parts for data-based modeling
#2757	Problems.DataAnalysis	Provide friction test datasets as regression problem instances
#2848	Problems.DataAnalysis	Extract functionality to remove duplicate datasets into separate class
#2442	Problems.DataAnalysis.Symbolic	Linq Expression Trees Interpreter for HeuristicLab
#2650	Problems.DataAnalysis.Symbolic	Support for categorical variables (R factors) for symbolic regression with GP
#2677	Problems.DataAnalysis.Symbolic	Support for multi-argument functions for non-linear function fitting
#2686	Problems.DataAnalysis.Symbolic	Support for time lags in constant optimizer
#2692	Problems.DataAnalysis.Symbolic	The 'mathematical view' for symbolic expressions should show factors = 1 directly in the formula.
#2742	Problems.DataAnalysis.Symbolic	Possibility to store the history of best solutions for single-objective symbolic regression
#2741	Problems.DataAnalysis.Symbolic.Regression	Extend the multi-objective symbolic regression analyzer to analyze the test error in the Pareto-front
#2802	Problems.DataAnalysis.Symbolic.Regression	Provide a well-configured sample for symbolic regression with GP with strict offspring selection
#2852	Problems.DataAnalysis.Symbolic.Regression	Improve Constants Optimization for Symbolic Regression
#1666	Problems.DataAnalysis.Symbolic.Views	SimplifierViews for symbolic data analysis problems should give a visual clue when a background process is running
#2632	Problems.DataAnalysis.Views	Legends for charts for data analysis solutions should show the target variable when possible
#2662	Problems.DataAnalysis.Views	Show Y-Value in Target Response Gradients
#2670	Problems.DataAnalysis.Views	Target Response Gradient charts should be renamed
#2673	Problems.DataAnalysis.Views	Solution view for variable impacts
#2718	Problems.DataAnalysis.Views	View to analyze residuals over the rows of the dataset for regression solutions
#2749	Problems.DataAnalysis.Views	DataAnalysisSolutionViews should never show ResultViews
#2750	Problems.DataAnalysis.Views	EstimatedValuesView for RegressionSolutions does not show residuals
#2759	Problems.DataAnalysis.Views	Change problemdata of DataAnalysisAlgorithms
#2779	Problems.DataAnalysis.Views	For model validation and inspection an analysis of residuals over input variables could be insightful
#2860	Problems.DataAnalysis.Views	Clear filename if problemData of solutions is changed
#2553	Problems.ExternalEvaluation	Provide access to script's compiled instance as dynamic object
#2660	Problems.Instances	Extend VariableNetworkInstances to include problems with no noise and to calculate actual variable relevance
#2737	Problems.Instances	TSPLIBInstanceProvider only sets best known quality if also optimal tour is known
#2853	Problems.Instances	Reduce test set size of Keijzer problem instances
#2705	Problems.VehicleRouting	Best-known quality only VRP solutions
#2703	Random	Gamma distribution for HeuristicLab
#2560	Services.OKB	Enable uploading and downloading of characteristic values in okb
#2588	Services.OKB	Enable uploading and downloading of solutions in okb
#2694	Visualization.ChartControlsExtensions	Lazy-loading of the ExportDialog in the EnchancedChart

Bugs:

Ticket	Component	Summary
#2753	Algorithms.ALPS	ALPS does not reparameterize the evaluator
#2529	Algorithms.DataAnalysis	AR1 is not evaluated correctly on the test partition
#2652	Algorithms.DataAnalysis	Scaling of variable values is missing for k-nearest neighbors models
#2653	Algorithms.DataAnalysis	GetEstimatedValues is not thread-safe for k-nearest neighbours model
#2712	Algorithms.DataAnalysis	GaussianProcesses define a Maximization parameter
#2752	Algorithms.DataAnalysis	Dataset partitions are not set correctly in for GBT with logistic regression loss
#2756	Algorithms.DataAnalysis	GBT with logistic regression loss function cannot be used in cross-validation
#2763	Algorithms.DataAnalysis	Qualities-Chart for GBT should start at 0
#2854	Algorithms.DataAnalysis	Random Forest Results are wrong
#2826	Algorithms.MOCMAEvolutionStrategy	MO-CMAES ignores maximum evaluated solutions limit
#2815	Algorithms.ParameterlessPopulationPyramid	Implement cloning and serialization of P3 correctly
#2797	Algorithms.ParticleSwarmOptimization	Improve PSO implementation
#2799	Analysis.Views	DataTable and ScatterPlotView (De)RegisterEvents base-calls missing
#2547	Clients.OKB	Method ConvertToOptimizationRun should be moved from QueryView to QueryClient
#2746	Common	Overflow issues in binomial coefficient calculation
#2778	DataPreprocessing	Shuffling manipulation in the DataPreprocessing does not work as expected
#2714	DataPreprocessing.Views	DataGridView key events do not work correctly
#2837	DataPreprocessing.Views	Lost Exception in DataPreprocessing during Import
#2540	Encodings.RealVectorEncoding	StringConvertibleMatrixView may throw an exception if it is reused
#2647	Encodings.SymbolicExpressionTreeEncoding	Crossover does not remove swapped subtrees from the non-root parent
#2685	Encodings.SymbolicExpressionTreeEncoding	SymbolicExpressionGrammars calculate the min length and depth of expression wrong
#2689	Encodings.SymbolicExpressionTreeEncoding	Parameters of SymbolicExpressionTreeEncoding are not prefixed with the encoding name which causes problems when used in MultiEncoding
#2794	Encodings.SymbolicExpressionTreeEncoding.Views	Pad and center tree chart & layout
#2648	ExtLibs	Correct outputpath of sim# 3.0.9
#2735	ExtLibs	Netron diagramming build problems using Build.cmd
#2803	ExtLibs	Fix igraph tests
#2664	General	Adapt project files for linux
#2781	General	BioBoost: Demo file cannot be opened because of a missing plugin dependency
#2788	General	Blue screen on some Windows 10 systems
#2764	Hive.Client	MenuItem CreateHiveJob operates on the displayed content
#2846	Hive.Client	Uncaught ObjectDisposedExceptions
#2784	Hive.General	Pausing of Hive tasks does not work
#2833	Hive.Server	Hive service does not reschedule tasks
#2667	MainForm.WindowsForms	ObjectDisposedException might crash HL in ProgressView in combination with importing data from CSV file
#2716	MainForm.WindowsForms	Exception in RemoveOperationProgressFromContent
#2711	Optimization	The execution state of algorithms is not synchronized correctly if an exception occurs during the stop operation
#2786	Optimization	Cursor keys in optimizer menu navigate in wrong direction
#2816	Optimization	BasicAlgorithms are not cloned correctly
#2823	Optimization	Synchronous Experiment.Start call might return too early
#2810	Optimization.Views	Tooltips in Bubblechart for non-numerical values is wrong
#2818	Optimization.Views	GUI is unresponsive if multiple displayed algorithms are running
#2830	Optimization.Views	Uncought Exceptions in IOptimizers get lost
#2831	ParallelEngine	Breakpoints in ParallelEngine can cause unexpected behavior
#2785	Problems.BinPacking	BinPacking doesn't respect stacking constraints
#2820	Problems.BinPacking	Bug in residual update in Bin packing
#2669	Problems.DataAnalysis	TargetVariable information is lost in DataAnalysisModels
#2683	Problems.DataAnalysis	Exception when trying to open the data preprocessing view for regression solutions
#2723	Problems.DataAnalysis	Providing variable values as double[] to Dataset fails at runtime
#2843	Problems.DataAnalysis	Changing of ProblemData for DataAnalysisSolution does not work as expected
#2859	Problems.DataAnalysis	Improve TableFileParser column-type deduction for missing values
#2861	Problems.DataAnalysis	Ctor of ClassificationProblemData is broken
#2710	Problems.DataAnalysis.Symbolic	Editing variable nodes in the tree simplifier fails if the variable symbol does not contain any variable names
#2675	Problems.DataAnalysis.Views	TimeframeFeatureCorrelationCalculator cuts the observations within the window at the start and appends them to the end
#2702	Problems.DataAnalysis.Views	Axis for estimated values and for predicted values should be switched in the scatter plot view
#2717	Problems.DataAnalysis.Views	The feature correlation view sometimes shows wrong double.NaN values
#2807	Problems.DataAnalysis.Views	PartialDependencePlot throws Exception with constant values
#2371	Problems.Instances	Setting the seed for ValueGenerator not possible (for data analysis problems)
#2661	Problems.Instances	Remove bugs in TableFileParser
#2688	Problems.Instances	Encoding is not forwarded to the table file parser while importing CSV files
#2720	Problems.Instances	Exporting of JSSP problem instances does not work
#2801	Problems.Instances	Typos in csv importer dialog
#2790	Problems.Scheduling	Island GA throws exception when applied to JSSP
#2775	Problems.TestFunctions	MultiRealVectorCrossover throws exception when applied during multi-objective optimization
#2827	Problems.TestFunctions.Views	SingleObjectiveTestFunctionSolutionView throws Exception for ProblemSize == 1
#2696	Problems.VehicleRouting	Clear BestKnownSolution and BestKnownQuality when problem instances changes
#2721	Random	Shuffle extension method throws on empty enumerable
#2787	Scripting.Views	Opening a C# script on Windows10 causes a change of DPI settings (scaling of widgets)
#2824	Tests	Test's app config contains service definitions
#2728	Visualization.ChartControlsExtensions	Fix EnhancedChart resetting the zoom level

Tasks:

Ticket	Component	Summary
#2640	General	Release HeuristicLab 3.3.15
#2751	General	Upgrade build process for HL
#2805	General	Update mergeinfo of stable branch to include already merged revisions

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HeuristicLab 3.3.14 "Denver" - July 24th, 2016

• Download HeuristicLab 3.3.14 binaries for all CPU types

The changes made in HeuristicLab 3.3.14 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2639	### Undefined ###	Fix build warnings in trunk solution
#2571	Algorithms	Create a RandomSearchAlgorithm
#2527	Algorithms.ALPS	Implement ALPS with Offspring Selection
#1795	Algorithms.DataAnalysis	Gradient boosting meta-learner for regression and classification
#2591	Algorithms.DataAnalysis	Evaluation of GaussianProcessModels should be faster
#2612	Algorithms.DataAnalysis	Regression tree models should support evaluation even when some of the variables are missing or contain missing values
#2627	Algorithms.DataAnalysis	Non-linear regression based on a given model structure
#2542	Algorithms.DataAnalysis.Views	Estimated values view should also show predictive variance for each point especially for Gaussian processes
#2597	Algorithms.DataAnalysis.Views	Gradient chart view for regression solutions
#2602	Common	Enumerable extensions for generating k-combinations of elements from a collection
#2626	Common	Make it possible to exclude fields from object graph traversal explicitly.
#2628	Common	Population variance should be available as enumerable extension
#2569	Core.Views	View for ParameterizedItem
#2589	Data	Possibility to prevent resizing of ValueTypeArrays
#2637	Data	Conversions from ValueTypeArray/Matrix to standard arrays
#2610	Data.Views	TimeSpanValue Parse
#2559	DataPreprocessing	Decouple DataPreprocessing from SymbolicDataAnalysis
#2545	Encodings.SymbolicExpressionTreeEncoding	It should be allowed to create the SymbolicExpressionTreeEncoding in the GUI
#2504	ExtLibs	Transport plugin for SharpDX external library
#2586	Hive.Server.DataAccess	Reduce HIVE load on downloading jobs
#1235	MainForm.WindowsForms	Context menu to close tabs/views
#2566	Operators	Improve collecting (Before|After)ExecutionOperators in Run
#2281	Optimization	New parameter type for storing results
#2060	Optimization.Views	Hitting the Enter-key in the experiment dialog closes the dialog
#2494	Optimizer	NewItem-Dialog should consider Categories in search results
#2567	Optimizer	HeuristicLab Applications do not respect their previous location and size
#2587	Optimizer	CreateExperimentDialog should show parameter descriptions
#2580	PluginInfrastructure	Command line argument handling is too restrictive
#2641	Problems.BinPacking	Bin Packing Trunk Integration
#2417	Problems.DataAnalysis	Extend interface for IDataset to allow access by column index
#2536	Problems.DataAnalysis	Dataset should implement IStringConvertibleMatrix explicitly
#2590	Problems.DataAnalysis	RegressionEnsembles should support weighting of the estimated values
#2593	Problems.DataAnalysis	Add method to convert a Dataset into a Modifiable dataset and possibility to replace columns
#2595	Problems.DataAnalysis	VariableImpactsCalculator for RegressionSolutions
#2604	Problems.DataAnalysis	Retrieve variables used for prediction in data analysis solutions/models
#2619	Problems.DataAnalysis	FeatureCorrelation should have an option to ignore missing values
#2572	Problems.DataAnalysis.Symbolic.Regression	SymbolicRegressionSolutionsAnalyzer should also add training and test R² values to the scope so that they can be read by other analyzers
#2584	Problems.DataAnalysis.Symbolic.Regression	ConstantOptimization should be configurable to ignore variable weights
#2620	Problems.DataAnalysis.Views	RegressionSolution Scatterplots should use semi-transparent data points
#2071	Problems.Instances	Refactor TableFileParser
#2611	Problems.Instances	Add SARCOS (inverse dynamics) as a real world regression problem instance
#2618	Problems.Instances	Create benchmark problem instances for variable network modeling
#2221	Problems.ProbabilisticTravelingSalesman	Implement the probabilistic traveling salesman problem
#2579	Problems.Programmable.Views	Changing Name of a ProgrammableProblem does not change caption in view
#1087	Problems.TestFunctions	Implement multiobjective test functions
#2546	Services.OKB	OKB run should return the algorithm id
#2549	Services.OKB.DataAccess	Optimize OKB Query Service
#2594	Visualization.ChartControlsExtensions	Better axis scaling in scatter plot and related charts

Bugs:

Ticket	Component	Summary
#2563	CodeEditor	Exceptions thrown during code folding/completion are not handled
#2575	Collections	ObservableList's AddRange enumerates multiple times
#2544	Core	ScopeList clones list items twice
#2600	Core	Incorrect set method of directed graph arc label property causes NullReferenceException
#2535	Data.Views	TextBox in StringConvertibleValueView is truncated
#2568	Data.Views	UpdateRow/ColumnHeaders in StringConvertibleMatrixView should be public
#2599	DataPreprocessing	DateManipulation throws a GDI exception
#2616	DataPreprocessing	DataPreprocessing StatisticsView throws an exception for columns without any values
#2393	DataPreprocessing.Views	DataCompleteness chart is slow
#2570	Encodings.SymbolicExpressionTreeEncoding	SymbolicExpressionTree GetLength and GetDepth could return wrong results
#2643	Encodings.SymbolicExpressionTreeEncoding	Subtree crossover can fail when tree size is larger than maximum tree size
#2644	ExtLibs	Upgrade Sim# to 3.0.9
#2534	General	Build.cmd does not work with Visual Studio 2015-only installations
#2539	General	MergeConfigs.cmd does not work correctly
#2562	Hive.Server	Fix problem with tasks that get paused
#2578	MainForm	MainForm throws NullReferenceException when default ctor is used
#2596	Optimization	ExecutionTimeTerminator cloning error
#2565	Optimization.Views	AlgorithmView clears the ViewType of the ProblemViewHost leaving the Viewhost in an invalid state
#2530	Optimizer	CreateExperimentDialog Error (EnumValue + FixedValueParameter)
#2585	Optimizer	Create experiment dialog throws an exception if more than one instance provider does not have any data descriptors
#2603	Optimizer	Unnecessary use of EventWaitHandle in CreateExperimentDialog
#2642	Problems.BinPacking	Bin packing fails tests
#2543	Problems.DataAnalysis	ClassNames cannot be changed for loaded and cloned ClassificationProblemData
#2574	Problems.DataAnalysis	ClassificationPerformanceMeasures throw exceptions if only one class is present
#2598	Problems.DataAnalysis	ProblemData cannot be changed for DataAnalysisProblems
#2601	Problems.DataAnalysis	ClassificationPerformanceMeasures are not recalculated when the data changes
#2576	Problems.DataAnalysis.Symbolic	VariableCondition symbol is deserialized incorrectly
#2609	Problems.DataAnalysis.Symbolic.Regression	Cannot apply constant optimization on simplified trees
#2243	Problems.DataAnalysis.Symbolic.Views	JavaScript error when showing symbolic models in mathematical notation (MathJax)
#2525	Problems.ExternalEvaluation	Some types are missing a StorableClassAttribute
#2551	Problems.ExternalEvaluation	Encoding cannot be set through API for the ExternalEvaluationProblem
#2557	Problems.ExternalEvaluation	Cached objects are troublesome for object graph traversal
#2614	Problems.Scheduling	Name of Job Shop Scheduling Solution is not set (GUI lockup)
#2532	Problems.VehicleRouting	PotvinPDExchangeSingleMoveGenerator throws ArgumentOutOfRangeException

Tasks:

Ticket	Component	Summary
#2526	General	Release HeuristicLab 3.3.14
#2538	General	Delete outdated plugins

---

HeuristicLab 3.3.13 "Windischgarsten" - November 20th, 2015

• Download HeuristicLab 3.3.13 binaries for all CPU types

The changes made in HeuristicLab 3.3.13 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2027	Algorithms	Customizable termination criteria
#2269	Algorithms	Implement ALPS
#1967	Algorithms.DataAnalysis	Evolution of mean and covariance functions for Gaussian processes using GP
#1998	Algorithms.DataAnalysis	Model Comparison for Classification
#2385	Algorithms.DataAnalysis	Boolean parameter for data-analysis algorithms to disable creation of a final solution
#2488	Algorithms.DataAnalysis	Quantile regression loss for gradient boosted trees
#2501	Algorithms.DataAnalysis	It should be possible to use any IRegressionModel as mean function in a Gaussian process
#2478	Algorithms.OffspringSelectionGeneticAlgorithm	Offspring selection for Evolution Strategy
#2473	Analysis.Views	Automatically hide all columns containing only a single value in the "Table" run collection view
#2418	Common	More efficient implementation of median
#2470	Core	ItemDictionary should allow to use a custom comparer
#2116	Core.Views	Implement a breadcrumb navigation for view hosts
#2486	DataPreprocessing	Allow add columns and rows for data preprocessing
#2469	Encodings.SymbolicExpressionTreeEncoding	Create base class for problems using the SymbolicExpressionTreeEncoding
#2454	General	The ItemName of Creatables should include their respective acronym
#2461	Hive.Client	Enable paging for downloading Hive Jobs
#2496	Hive.Client	Provide more detailed information when no connection can be established in the Hive Job Manager
#2388	Hive.Server	Improve new Hive statistics web page
#2429	Hive.Server	Implement a maintenance WebApp plugin
#2468	Hive.Slave	Implement Checkpointing for the Hive Slave
#2377	Optimization.Operators	Parallelize SimilarityCalculators
#2495	Optimization.Operators	Allow configuring of migration direction in UnidirectionalRingMigrator
#2492	Problems.DataAnalysis	Bound the return value of the OnlinePearsonsRCalculator to [-1,+1]
#2175	Problems.DataAnalysis.Symbolic	Calculate the complexity of symbolic expression trees
#2264	Problems.DataAnalysis.Symbolic	Exporter for symbolic data analysis solutions to C# source code
#2484	Problems.DataAnalysis.Symbolic	Mathematica formatter for symbolic data analysis models
#2480	Problems.DataAnalysis.Symbolic.Regression	Add optional flag to the evaluator to save the estimated values in the tree scope for symbolic regression problems
#1736	Problems.DataAnalysis.Views	View for the ConstantRegressionModel
#2391	Problems.DataAnalysis.Views	Error characteristics curve should support showing multiple regression solutions at once to easily compare solutions.
#1674	Problems.ExternalEvaluation	Implement multi-objective external evaluation problem
#2507	Problems.ExternalEvaluation	Open ExternalEvaluationProblem for extension
#2069	Problems.GeneticProgramming	Implement GP problem for code generation
#2472	Problems.GeneticProgramming	Create HeuristicLab.Problems.GeneticProgramming
#2298	Scripting	Add execution time to scripts
#2421	ZZZ OBSOLETE: Problems.ArtificialAnt	Port artificial ant problem to new symbolic expression encoding
#2422	ZZZ OBSOLETE: Problems.LawnMower	Port lawn mower problem to new symbolic expression encoding

Bugs:

Ticket	Component	Summary
#2487	Algorithms.CMAEvolutionStrategy	Long running CMA-ES could lead to Nan values
#2449	Algorithms.DataAnalysis	Persistence of Gaussian process models is inefficient
#2450	Algorithms.DataAnalysis	Persistence of gradient boosted trees solutions takes a long time and creates really big files
#2465	Algorithms.DataAnalysis	Persistence of SVM solutions takes a long time and creates really big files
#2490	Algorithms.DataAnalysis	Evaluation of GBT models is not thread-safe
#2497	Algorithms.DataAnalysis	Improve scaling of inputs and optionally target values for the Gaussian process
#2502	Algorithms.DataAnalysis	Calculation of confidence bounds for Gaussian process models seems incorrect
#2439	Algorithms.GradientDescent	Remove bugs in LM-BFGS
#2466	Algorithms.OffspringSelectionGeneticAlgorithm	SASEGASA terminates too early
#2432	Algorithms.RAPGA	RAPGA cannot be restored from file
#2433	Algorithms.ScatterSearch	ScatterSearch cannot be restored from file
#2440	Analysis.Statistics.Views	KeyNotFoundException when opening StatisticalTestsView
#2477	Clients.OKB	OKBExperimentUploadView does not work with RunCollections
#2491	Common	Implementation of Percentile function is incorrect as it assumes that values are sorted.
#2467	DataPreprocessing.Views	Add 25th and 75th Percentile columns to the DataPreprocessing statistics view
#2451	Encodings.IntegerVectorEncoding	(Integer|Real)VectorEncoding constructor fails when individual bounds per dimension are used
#2458	Encodings.SymbolicExpressionTreeEncoding	Full and Grow tree creator use a different depth restrictions as PTC2
#2430	General	Some project files don't adhere to the naming rules
#2475	General	Update HL Mono Compatibility
#2479	Hive.Client	Deleting groups in the Hive Administrator does not work anymore
#2503	Hive.Server	Resource Locator Dialog in the Hive Job Manager does not work
#2355	Hive.Slave	Fix problem with Hive slave sandboxing
#2061	Optimization	Synchronization in Experiment class causes contention problems for experiments with many parallel tasks
#2483	Optimization	Encodings don't store the SolutionCreator
#2436	Optimization.Views	BoxplotView throws an exception when color is selected
#2441	Optimization.Views	RunCollection Chart Aggregation View throws Exception
#2493	Optimization.Views	Editing labels in the experiment (tree) view don't update the respective item's name
#2446	Optimizer	Name and description of VNS OP sample is wrong
#2448	Problems.DataAnalysis	Ensemble solutions do not store individual solutions
#2452	Problems.DataAnalysis	Support drag&drop of new solutions in the RegressionSolutionErrorCharacteristicsCurveView
#2459	Problems.DataAnalysis	IRegressionSolution is missing properties for the RMSE
#2489	Problems.DataAnalysis	Cloning of the ModifiableDataset does not clone the values
#2485	Problems.DataAnalysis.Symbolic	CSharp formatter for symbolic data analysis expressions does not produce correct expressions in all cases
#2453	Problems.DataAnalysis.Symbolic.Regression	Double precision artifacts cause exceptions in the phenotypic similarity calculator
#2512	Problems.GrammaticalEvolution	GEArtificialAntProblem does not synchronize access to random parameter
#2444	Problems.QuadraticAssignment	Robust Taboo Search doesn't output evaluated moves
#2445	Problems.QuadraticAssignment	QAP LocalImprovers replace evaluated solutions instead of incrementing
#2481	Problems.TravelingSalesman	No move operators for TSP distance matrix evaluator
#2510	Tests	Unit tests don't work in Visual Studio 2015
#1723	ZZZ OBSOLETE: Problems.ArtificialAnt	Tree creators from the symbolic data analysis plugin are discovered as tree creators for the artificial ant problem

Tasks:

Ticket	Component	Summary
#2428	General	Release HeuristicLab 3.3.13
#2500	General	Delete unused .cs files in the solution
#2518	Problems.NK	Set svn:ignore properties correctly for Problems.NK

---

HeuristicLab 3.3.12 "Madrid" - July 13th, 2015

• Download HeuristicLab 3.3.12 binaries for all CPU types

The changes made in HeuristicLab 3.3.12 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2337	### Undefined ###	Fix build warnings in trunk solution
#2261	Algorithms.DataAnalysis	Gradient Boosted Trees
#2276	Algorithms.DataAnalysis	Create interface for Dataset class, refactor code
#2321	Algorithms.NSGA2	NSGA2: Provide option for dominating solutions with equal quality values
#2411	Algorithms.NSGA2	FastNonDominatedSort performance should be improved
#2351	Analysis.Statistics.Views	Kernel density estimation for histogram control
#2352	Analysis.Statistics.Views	Correlation matrix should only show correlations to 3 or 4 digits accuracy
#2305	Analysis.Views	Statistical Tests View should also work with problem variations
#2340	Core.Views	Copy & Paste from ItemListView
#2387	Core.Views	Adapt TypeSelector to changes from NewItemDialog
#2327	Data	Implement a generic EnumValue and a generic EnumValueView
#2335	DataPreprocessing	Data Preprocessing Improvements
#2319	Encodings.LinearLinkageEncoding	Add LinearLinkageEncoding (LLE)
#2320	Encodings.SymbolicExpressionTreeEncoding	Add SymbolicExpressionTreeEncoding
#2341	ExtLibs	Updated EPPlus to the newest version
#2420	ExtLibs	Add Sim# as simulation framework to ExtLibs
#2328	Hive.Client	Improve handling of batchruns in Hive Job Manager
#2413	Hive.Server	Add QuickSelection to WebApp Status page and obfuscate email links
#2342	Operators	Change ReductionOperation-Parameter of the DataReducer to ValueLookupParameter
#1985	Optimization	Create optimizer that limits runtime of an optimizer
#2332	Optimization	Overhaul operators for similarity calculation and analysis
#2344	Optimization	Improve Calculator
#2025	Optimizer	Improve structure for elements in the "new item" dialog.
#2301	Optimizer	Improve numeric accuracy in create experiment dialog
#2366	Optimizer	Utilize EnumValue-Parameters in the "Create Experiment"-Dialog.
#2427	Optimizer	Add sample that uses linear linkage encoding
#2368	Persistence	Make reading/writing HL data with typecache to stream available
#2374	Problems.DataAnalysis	Make RegressionSolution class non-abstract
#2412	Problems.DataAnalysis	Include the RMSE for RegressionSolutions
#2326	Problems.DataAnalysis.Symbolic	Diversity analyzers based on the genotypic and phenotypic tree similarity measures
#2359	Problems.DataAnalysis.Symbolic	Improve the SymbolicDataAnalysisExpressionPruningOperator
#2396	Problems.DataAnalysis.Symbolic	Add a symbolic expression tree formatter for C#
#2369	Problems.DataAnalysis.Views	Support chart for relative error in the error characteristic view
#2423	Problems.Instances	Add regression dataset (powermeter)
#2306	Problems.NK	Integrate NK landscapes
#2208	Problems.Orienteering	Implement Orienteering Problem
#2400	Problems.VehicleRouting	Setting new penalty values in VRP instances are not respected
#2329	Scripting.Views	Make CodeEditor available on Linux
#2358	Scripting.Views	Improve performance of the VariableStoreView
#2362	Tools	Update SymbolicExpressionTreeNode Debugger Visualizer to .Net 4.5

Bugs:

Ticket	Component	Summary
#2318	### Undefined ###	Clean up copyrights and assembly infos
#2367	Algorithms.CMAEvolutionStrategy	Eigendecomposition fails on some computers in release builds
#2386	Algorithms.ParameterlessPopulationPyramid	Poor hash function affects performance in the Parameter-less Population Pyramid
#2354	Analysis.Statistics.Views	Statistical tests view throws exception before opening
#2348	Analysis.Views	Fix chart analysis view
#2401	CodeEditor	Add missing plugin dependency to HeuristicLab.NRefactory
#2419	CodeEditor	ObjectDisposedException in CSharpCodeCompletionStrategy
#2378	Collections	Setter for Vertex label throws exception when the label is null
#2381	Common	Object-graph traversal does not finish in some cases / algorithm does not stop
#2338	Core.Views	Missing default view for read-only collections
#2395	Data	double.MaxValue cannot be parsed from string
#2373	Encodings.BinaryVectorEncoding	Typo in RandomBinaryVectorCreator
#2322	Encodings.PermutationEncoding	Fix typos in PermutationEncoding class
#2365	Encodings.SymbolicExpressionTreeEncoding.Views	SymbolicExpressionTreeChart: node impact colors are not preserved when saving to file
#2399	General	Fix new problems with HL on Linux
#2402	Hive.Client	Don't reschedule failing tasks
#2408	Hive.Client	Fix exception handling in Hive client
#2409	Hive.Client	Dependent plugins of programmable items cannot be determined through serialization
#2357	Hive.Server	DeleteObsoleteSlaves should respect the downtime foreign key
#2404	Hive.Server	Hive JobManager displays wrong number of finished jobs
#2346	Hive.Slave	Fix service install of Hive Slave
#2356	Hive.Slave	Fix generation of unique IDs of Hive slave
#2347	MainForm.WindowsForms	Make links in InfoBox clickable
#2325	Optimization	RunCollection doesn't register all events after cloning or deserialization
#2364	Optimization	The BasicProblem's Evaluator should be InstrumentedOperators
#2270	Optimization.Views	Fix event handling in RunCollectionViews
#2334	Optimization.Views	Fix export of box plots
#2339	Problems.DataAnalysis	Classification ensembles aren't aware of the classification positive class
#2323	Problems.DataAnalysis.Symbolic	Remove obsolete diversity analyzer and similarity calculator for symbolic data analysis
#2324	Problems.DataAnalysis.Symbolic	Remove obsolete diversity analyzer and similarity calculator for symbolic data analysis
#2363	Problems.DataAnalysis.Symbolic	TreeSimplifier performance gets worse the deeper a tree is nested
#2376	Problems.DataAnalysis.Symbolic	Selection of function symbols from the grammar is biased
#2398	Problems.DataAnalysis.Symbolic	Pruning operators mistakenly try to calculate impacts for the program root symbol and the start symbol
#2415	Problems.DataAnalysis.Symbolic	DataPreprocessing transformations cannot be persisted
#2307	Problems.DataAnalysis.Symbolic.Regression	Investigate problem with parents and SymbolicExpressionTreeBottomUpSimilarityCalculator
#2274	Problems.DataAnalysis.Views	Cluster Visualization View cannot handle one dimensional data points
#2345	Problems.DataAnalysis.Views	The x-axis in the error-characteristic-curve view is always at least 1.0
#2392	Problems.DataAnalysis.Views	In the correlation matrix there are no negative values for Pearson's correlation
#2403	Problems.ExternalEvaluation	ClearState might throw NullReferenceException in MATLAB evaluator
#2426	Problems.Programmable	Update Programmable Problem template code
#2424	Scripting	Console in C# script base passes wrong arguments
#2343	Scripting.Views	Values of variables are not updated correctly in the VariableStoreView
#2416	Scripting.Views	VariableStoreView needs to check for invoke required
#2372	Services.Authentication	Fix user creation in access service admin tool

Tasks:

Ticket	Component	Summary
#2397	ExtLibs	Move GeoIP project to ExtLibs folder
#2317	General	Release HeuristicLab 3.3.12
#2331	General	Remove outdated plugins
#2394	Hive.Server	Integrate Services Web App and new Hive Status Monitor into trunk

---

HeuristicLab 3.3.11 "Beach Bar" - February 13th, 2015

• Download HeuristicLab 3.3.11 binaries for all CPU types

The changes made in HeuristicLab 3.3.11 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2282	Algorithms	Implement PPP for HeuristicLab
#2234	Algorithms.DataAnalysis	Implement grid search for LibSVM parameters
#2237	Algorithms.DataAnalysis	Implement grid search for random forest parameters
#2232	Algorithms.VariableNeighborhoodSearch	Split ILocalImprovementOperator
#2031	Analysis	Implement views for statistical hypothesis testing
#2223	Core	Directed graph class for HeuristicLab
#2245	DataPreprocessing	Shuffle manipulation treats the training and test partition separately
#2253	Encodings.BinaryVectorEncoding	BinaryVectorCreator should have a probability property
#2252	Encodings.SymbolicExpressionTreeEncoding	Tree nodes for symbolic expression trees are derived from Item
#2268	Encodings.SymbolicExpressionTreeEncoding	Tree grammars take up a lot of space in a persisted HL file containing multiple trees
#2265	MainForm.WindowsForms	Support for opening .hl files via drag and drop from windows explorer.
#1668	Optimization	Provide a SimpleAlgorithm base class or interface
#2120	Optimization	RunCollection doesn't update ResultNames or ParameterNames when items are added to a run afterwards
#2174	Optimization	Add programmable optimization problem
#2266	Optimization	Synchronous control methods in IExecutable
#2271	Optimization.Views	Change title of "Parameters"-tab to "Algorithm" in the algorithm view
#1802	Persistence	Improve serialization and deserialization of enumerables of primitive types
#2242	Persistence	Datatypes Queue and Queue<> are not serializable
#2294	PluginInfrastructure	ApplicationManager should be able to discover types from specified assemblies
#2278	Problems.DataAnalysis	New quality measures for ClassificationSolutions
#2098	Problems.DataAnalysis.Symbolic	Excel export of symbolic data analysis solutions should support boolean functions
#2164	Problems.DataAnalysis.Symbolic	Tree matching functionality for symbolic expression trees
#2215	Problems.DataAnalysis.Symbolic	More accurate tree similarity measure based on tree bottom-up distance
#2218	Problems.DataAnalysis.Symbolic	Move the SymbolicExpressionImporter from HeuristicLab.Tests to the main solution
#2238	Problems.DataAnalysis.Symbolic	Reduce memory footprint of GP solutions
#2285	Problems.DataAnalysis.Symbolic	SymbolicDataAnalysisSingleObjectiveValidationAnalyzer does not implement IStochasticOperator
#2287	Problems.DataAnalysis.Symbolic	ConstantsOptimizationEvaluator cannot handle roots
#2220	Problems.Instances	Improve the generation of all possible combinations of values in ValueGenerator.cs
#2229	Problems.VehicleRouting	Enable loading of best known solutions for mult-depot VRP
#2262	Scripting	Improve the scripting environment
#2303	Scripting	Throw a more specific exception if script compilation fails
#2211	Tests	Provide unit tests for samples and scripts creation and execution
#2279	Visualization.ChartControlsExtensions	Improve HistogramControl

Bugs:

Ticket	Component	Summary
#2284	Algorithms.DataAnalysis.Views	"Error creating window handle" for covariance function views
#2250	Algorithms.ScatterSearch	Scatter search doesn't run without path relinkers
#2249	Analysis	BestScopeSolutionAnalyzer chains previous best solutions in the scope
#2311	Core	ItemSet<T> uses default comparer after cloning
#2214	DataPreprocessing	DataPreprocessing cannot be started directly from the problem data
#2246	DataPreprocessing	DataPreprocessing loses the selected input variables while restoring the problem data
#2257	DataPreprocessing	The Apply button in the DataPreprocessing view only applies the first data manipulation operation, ignoring further manipulations.
#2248	Encodings.RealVectorEncoding	Add missing parameters for strategy vector operators
#2293	Encodings.RealVectorEncoding	Shaking Operators are missing the Bounds parameter to perform name translation for nested operators
#2296	Encodings.RealVectorEncoding	RealVectorCreator does not honor Length parameter
#2230	ExtLibs	Missing build platforms in Scilab/Matlab extlibs
#2233	ExtLibs	Cloning exception in svm_parameter when performing symbolc regression with LibSVM
#2241	General	ItemsRemoved event handling is incorrect in some places
#2149	MainForm.WindowsForms	ViewHost shall stop displaying views after a certain nesting level
#2158	MainForm.WindowsForms	Exception occurs for too many nested views. (BSOD on Win8)
#2315	Operators.Views.OperatorGraphVisualization	Add scroll bars to GraphVisualizationInfoView
#2222	Optimizer	Update Startpage text
#2096	Persistence	Persistence has issues with certain characters
#2227	Problems.DataAnalysis	FAQ links in data analysis providers are dead
#2273	Problems.DataAnalysis	CSV import into a clustering problem deactives the last input variable
#2310	Problems.DataAnalysis.Symbolic	The SymbolicExpressionTreeBottomUpSimilarityCalculator produces wrong results when the MatchConstantValues and MatchVariableWeights flags are disabled.
#2313	Problems.DataAnalysis.Symbolic	The bottom-up tree tree mapping sometimes maps too many nodes
#2286	Problems.DataAnalysis.Symbolic.Views	Variable names cannot be changed directy in the VariableSymbolView
#2216	Problems.DataAnalysis.Views	Curve for the baseline is not shown in the ERC view
#2314	Problems.ExternalEvaluation.Views	Duplicate default views for evaluation cache
#2224	Problems.Instances	TableFileParser doesn't import numeric values into string columns
#2259	Problems.Instances	ValueGenerator creates incorrect sequences due to the double arithmetic imprecision
#2263	Problems.TestFunctions	Update TestFunctions Link
#2277	Problems.TestFunctions	Missing class modifier in BestSingleObjectiveTestFunctionSolutionAnalyzer
#2251	Problems.TravelingSalesman	TSPImprover should use InversionManipulator's Apply method
#2228	Problems.TravelingSalesman.Views	TSP IndexOutOfBounds when changing instance
#2225	Problems.VehicleRouting	VehicleRoutingProblem cannot load TSPLib(CVRP)
#2226	Problems.VehicleRouting	Update VRP links in instance provider
#2239	Scripting.Views	The VariableStoreView unnecessarily tries to serialize objects.
#2256	Scripting.Views	Scripting and Programmable Operator do not work on systems with new .NET versions
#2112	Tests	ThreadSafeLogThreadSafetyTest sometimes fails
#2295	Tests	DeepCloneableCloningTest reports too many warnings
#2308	Tests	Fix statistics unit tests

Tasks:

Ticket	Component	Summary
#2077	ExtLibs	Update SharpDevelop to latest version (4.3)
#2312	ExtLibs	Fix svn:ignore properties in ExtLibs
#2212	General	Release HeuristicLab 3.3.11
#2247	General	Find alternative to SharpZipLib
#2280	General	Switch to .NET 4.5
#2290	General	Fix project files and update Mono prepare script
#2244	Hive.General	Update Installers for Hive
#2309	Scripting.Views	Make code changed handler protected in ScriptView
#2144	Tests	Interpreter Evaluation Tests could fail if VS2013 is installed

---

HeuristicLab 3.3.10 "Vancouver" - July 10th, 2014

• Download HeuristicLab 3.3.10 binaries for all CPU types

The changes made in HeuristicLab 3.3.10 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2109	Algorithms	Grammatical Evolution
#2124	Algorithms.DataAnalysis	Spectral Mixture Kernel
#2138	Algorithms.OffspringSelectionGeneticAlgorithm	The successful offspring analyzer should be made more user friendly
#2172	Algorithms.OffspringSelectionGeneticAlgorithm	OffspringSelector should be configurable to use the parents for filling the population
#2189	Algorithms.TabuSearch	Tabu Search should hide moves for which there are no tabu operators
#2142	Collections	Values properties in BidirectionalLookup are confusing
#2135	Data	Add possibility to restrict PercentValues to [0,1]
#2201	Data	Enhance PathValue Datatypes
#2206	DataPreprocessing	Integrate DataPreprocessing into HeuristicLab
#2159	Encodings.SymbolicExpressionTreeEncoding	Hierarchical textual formatter of symbolic expression trees
#2076	Encodings.SymbolicExpressionTreeEncoding.Views	The Reingold-Tilford tree layout algorithm for HeuristicLab
#2179	Encodings.SymbolicExpressionTreeEncoding.Views	Use the PTC2 as the default tree creator in the show sample tree dialog
#2147	Hive.Client	Add lower priorities for Hive Jobs
#2119	Operators	Implement an operator base class for instrumentation
#2123	Operators	ReductionOperations for BoolValues
#2178	Optimization.Views	Reorder statistics in the BoxPlotView
#2195	Optimizer	Redesign start page
#2198	Optimizer	HL should suggest better file names
#1972	PluginInfrastructure	The TypeSelector dialog takes too long to show
#1758	Problems.DataAnalysis	Change Dataset of RegressionModel
#2143	Problems.DataAnalysis.Symbolic	Pruning of introns/negative impact nodes in symbolic data analysis expressions
#2170	Problems.DataAnalysis.Symbolic	Analyzers should track the best generation of the reported solution
#2177	Problems.DataAnalysis.Symbolic	Implement XOR symbol
#2093	Problems.DataAnalysis.Symbolic.Regression	Evaluator for symbolic data analysis that calculates the mean of logarithmic residuals
#2134	Problems.DataAnalysis.Symbolic.Regression	AverageRelativeErrorEvaluator for Symbolic Regression
#2169	Problems.DataAnalysis.Symbolic.Regression	Tracking of training and test quality for solutions
#1763	Problems.DataAnalysis.Symbolic.Views	Support changing of constants and variable weights in the simplifier for symbolic data analysis models
#2156	Problems.DataAnalysis.Symbolic.Views	More efficient way to calculate impacts and replacement values in the InteractiveSymbolicDataAnalysisSolutionSimplifierView
#2194	Problems.DataAnalysis.Views	Ensemble should only be created from visible runs
#2082	Problems.ExternalEvaluation	External evaluation problems for Scilab and Matlab
#2204	Problems.TravelingSalesman.Views	PathTSPTourView should allow to view partial tours
#2152	Problems.VehicleRouting	The extensibility of the VRPProblem should be improved for creating new problem instances
#2136	Scripting	Create a scripting environment
#2209	Scripting	Implement an string-based access to the VariableStore for Scripts
#2133	ZZZ OBSOLETE: Problems.LawnMower	Calculation of mower position for Frog is implemented incorrectly (lawn mower benchmark problem for GP)

Bugs:

Ticket	Component	Summary
#2176	Algorithms.CMAEvolutionStrategy	CMA-ES doesn't use SolutionCreator
#1721	Algorithms.DataAnalysis	Persistence of random forest solutions takes a long time and creates really big files
#2125	Algorithms.DataAnalysis	All covariance functions return the full gradient vector even when parameters are partially fixed
#2173	Core	Wrong argument is passed into base constructor in ComparisonConstraint
#1971	Core.Views	Adding and removing multiple items in the ItemCollectionView<T> takes too long
#2183	Encodings.SymbolicExpressionTreeEncoding	The linear interpreter fails with an ArithmeticOverflow exception when compiling trees with length>255
#2196	Encodings.SymbolicExpressionTreeEncoding	Caching in symbolic expression grammar is not thread safe
#2092	Encodings.SymbolicExpressionTreeEncoding.Views	The root node of symbolic expression trees should not be shown if it has only one child
#2202	Encodings.SymbolicExpressionTreeEncoding.Views	Visual glitch in the symbolic expression grammar editor
#2207	General	Adapt project files for linux
#2210	General	Add missing changes to stable
#2117	Hive.Client	Open Hive Job Manager for more task types
#2122	Hive.Client	Exception appears on multiple refreshes of Hive Job Manager
#2090	Hive.Server	HiveException: Invalid attempt to read when no data is present.
#2113	Hive.Slave	Update Hive Slave Configurations
#2153	Hive.Slave	Add a timeout for stopping a Hive task
#2154	Hive.Slave	Failed Hive tasks should not be rescheduled
#2167	MainForm.WindowsForms	Illegal cross-thread exception in MainForm when removing progress control from view
#2121	Optimization.Views	Bubble chart view throws exception on hidden categories
#2104	Optimizer	When closing the optimizer a warning is shown to save views even though they cannot be saved
#2155	Optimizer	Exception when samples on the start page cannot be loaded
#2111	Persistence	Unit test for font persistence fails
#2192	Persistence	Discovering of StoreableHooks is not cached
#2145	Problems.DataAnalysis	The dataset constructor type check is too restrictive
#2166	Problems.DataAnalysis.Symbolic	SymbolicDataAnalysisAnalyzer must not use AsParallel for parallel execution
#2132	Problems.DataAnalysis.Symbolic.Classification	Impact calculation for symbolic classification solutions throws a NullReferenceException
#2157	Problems.DataAnalysis.Views	Incorrect naming for y-axis in the error characteristic view for regression solutions
#2160	Problems.DataAnalysis.Views	CreateEnsembleMenuItem doesn't clone the selected DataAnalysisSolutions
#2187	Problems.DataAnalysis.Views	Typo in message box for "Export to Excel"
#2197	Problems.DataAnalysis.Views	Error characteristics curve shows an exception for data sets with empty training set
#2137	Problems.Instances	The calculated stdev of the noise for feature selection problems is wrong
#2131	Problems.LinearAssignment	Maximization is ignored in linear assignment problem
#2193	Problems.ParameterOptimization	BestSolutionAnalyzer does not add a result if the best quality is not better than the best known quality
#2126	Problems.Scheduling	UI glitch in Job Shop Scheduling Problem View
#2129	Problems.Scheduling	Strings for JSSP jobs and tasks are not updated in job list and task list
#2130	Problems.Scheduling	Exception occurs in the JSSP decoder for a basic problem instance (1 job, 3 tasks on 3 different resources)
#2127	Problems.Scheduling.Views	Visualization in Job Shop Scheduling Problem View doesn't get refreshed when changing problem instances
#2180	Problems.TestFunctions	Best solution analyzer does not clone the real-vector
#2140	Problems.VehicleRouting	Fix event handling for the Vehicle Routing Problem
#2141	Problems.VehicleRouting	The evaluator is incorrectly initialized after deserialization
#2182	Problems.VehicleRouting	KeyNotFoundException in PushForwardInsertionCreator
#2184	Problems.VehicleRouting	IndexOutOfRangeException when changing VRP Instances
#2190	Problems.VehicleRouting	Tabu search with the MultiVRPMoveGenerator throws an exception
#2191	Problems.VehicleRouting	Bug in IterativeInsertionCreator
#2146	Random	Bug in SampleProportionalWithoutRepetition extension method
#2203	Scripting	VariableStore is not cloned when a CSharpScript is cloned
#2199	Scripting.Views	VariableStoreView incorrectly labels variables as non-serializable
#2181	Selection	OffspringSelector should have a default value for the FillPopulationWithParents parameter
#2106	Tests	SubScopeSorter is not using a stable sort

Tasks:

Ticket	Component	Summary
#1638	General	Implement unit test to create and run all additional GP samples (in misc folder)
#2115	General	Release HeuristicLab 3.3.10
#2171	Problems.ExternalEvaluation	Integrate ScilabParameterOptimizationProblem in the trunk

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HeuristicLab 3.3.9 - October 11th, 2013

• Download HeuristicLab 3.3.9 binaries for all CPU types

The changes made in HeuristicLab 3.3.9 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#2038	Algorithms	Reevaluation of elite individuals
#1961	Algorithms.CMAEvolutionStrategy	CMAES algorithm implementation
#2032	Algorithms.DataAnalysis	Polynomial covariance function
#2059	Algorithms.DataAnalysis	Piece-wise polynomial covariance function
#2095	Common	Improve object graph traversal by using a cache
#2075	Data	ValueTypeArrays should provide element names similar to row names for matrix types
#2081	Data	New HL data types for dealing with files and paths
#2079	Data.Views	StringConvertibleValueView cannot be subclassed
#1270	Encodings.SymbolicExpressionTreeEncoding	Implement representation of symbolic expressions in Smalltalk syntax
#2062	Encodings.SymbolicExpressionTreeEncoding	Analyzer that tracks the best symbolic expression tree in the results
#2084	General	OS X Compile Support for HL
#2100	MainForm.WindowsForms	Views should support displaying help texts
#2099	Optimization.Views	Improve names of RunCollection views
#1042	Optimizer	Indication which view is currently saving
#1508	Problems.DataAnalysis	Plugin for optimization of trading rules
#1730	Problems.DataAnalysis.Symbolic	Exporting symbolic data analysis solutions to excel files
#2021	Problems.DataAnalysis.Symbolic	SymbolicExpressionTreeLinearInterpreter
#2094	Problems.DataAnalysis.Views	Show the training and test split for discriminant function classification models in the EstimatedValuesView
#2047	Problems.Instances	Handling of white spaces in the DataAnalysisImportDialog
#1909	Problems.TestFunctions	Support for different real valued test functions should be implemented through a problem instance provider
#2055	Tools	Tool to reduce the file size of data analysis experiments
#2054	Visualization.ChartControlsExtensions	Option to hide axis when exporting images for publications

Bugs:

Ticket	Component	Summary
#2052	Algorithms.DataAnalysis	BatchRun only executes one run of a CrossValidation
#2065	Algorithms.DataAnalysis	Neural network covariance function does not work correctly in combination with masking
#2101	Algorithms.DataAnalysis	Several incorrect names/descriptions in class NeuralNetworkClassification
#1483	Analysis	The default constructor for DataRow should not be public
#2044	Core.Views	Checked state of Items in a CheckedItemsListView is changed when the item positions are changed
#1421	Data.Views	Change of StringValue in ItemCollection View does not react on Enter
#2078	General	Mono Fixes for HeuristicLab 3.3.9
#2064	Hive.Client	Fix sorting in Hive Job Manager and ItemCollectionView
#2085	Hive.Client	InvalidOperationException when refreshing in the Hive Job Manager
#2097	Hive.Client	Hive Job Manager crashes when downloading a job that cannot be deserialized
#2030	Hive.Server	Improve Hive Server performance
#2087	Hive.Server	HiveException: Add task fails with: The query results cannot be enumerated more than once.
#1833	Operators	Checked operator information is lost in run
#1501	Optimization.Views	`RunCollectionBubbleChartView` crashes when a run is added during a foreach loop over runs
#1677	Optimization.Views	Rows in the RunCollectionTabularView don't respect filters
#2043	Optimizer	Create experiment dialog doesn't handle ConstrainedValueParameter<ValueTypeValue> correctly
#2056	Problems.DataAnalysis	File name `OnlineOnlineCovarianceCalcualtor.cs` spelled wrong
#2066	Problems.DataAnalysis	TimeSeriesProblemData does not adapt training and test ranges
#2102	Problems.DataAnalysis	The "Data Analysis" menu should not be a top-level menu in the optimizer
#2067	Problems.DataAnalysis.Views	Relative error is calculated incorrectly in the RegressionSolutionEstimatedValuesView
#2070	Problems.Instances	TableFilesParser does not parse correctly
#2110	Problems.Instances	Import/Export for ProblemInstanceConsumers of multiple data types is not shown
#2010	Problems.TravelingSalesman	Some TSP instances do not load
#2107	Visualization.ChartControlsExtensions	Chart export dialog saves emf files as png

Tasks:

Ticket	Component	Summary
#2053	Algorithms.DataAnalysis	Update implementation of covariance functions to match GPML version 3.2 released in 01/2013
#1591	General	Remove outdated versions of plugins which were kept for compatibility reasons
#2049	General	Release HeuristicLab 3.3.9
#1099	Tests	Create unit tests for NamedItems
#2088	Tests	Restructure Unit Tests
#2108	Tests	Adapt unit tests to VS 2012

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HeuristicLab 3.3.8 "Ann Arbor" - May 10th, 2013

• Download HeuristicLab 3.3.8 binaries for all CPU types

The changes made in HeuristicLab 3.3.8 are listed below:

Features and Enhancements:

Ticket	Component	Summary
#1331	Algorithms	Implement Scatter Search
#1913	Algorithms	Implement Neighborhood Components Analysis (NCA)
#1902	Algorithms.DataAnalysis	Gaussian Process Regression Algorithm
#1947	Algorithms.DataAnalysis	Allow setting the degree for the polynomial kernel function for support vector machines
#1968	Algorithms.DataAnalysis	The number of used variable per tree should be configurable in random forests modeling
#2000	Algorithms.DataAnalysis	ModelCreator for Gaussian processes should be configurable in the algorithm
#1423	Algorithms.GradientDescent	Gradient descent algorithms for HL (already implemented in alglib)
#1247	Algorithms.OffspringSelectionGeneticAlgorithm	Implement RAPGA
#1892	Analysis	Enhance scatter plot
#1893	Analysis	Enhance allele frequency analyzer
#1899	Analysis	Diversity Analyzers should use the new Diversity Calculators from Scatter Search
#2002	Analysis	Support for logarithmic scaling in charts
#1946	Collections	Implement ObservableKeyedList
#1992	Core.Views	CheckItemListView shall display how many items are checked
#2034	Data.Views	Add method for querying the current row index in StringConvertibleMatrixView
#1070	Encodings.SymbolicExpressionTreeEncoding	Port SymbolicExpressionTree manipulation operators from 3.2 to 3.3
#1905	ExtLibs	Update alglib to version 3.6.0
#1960	ExtLibs	Add AutoDiff to external libraries
#1890	General	Code maintenance and minor changes
#1937	General	Trunk integration of Mono patches
#2036	General	PreBuildEvent.cmd shouldn't fail when there is no subwcrev installed
#1950	Hive.Client	Improve Hive UI stability
#1959	Hive.Client	The Hive JobManager should show the jobs per user sorted by date
#2005	Hive.Client	Add Unload Jobs in the Hive Job Manager
#1994	Hive.Server	Improvements for Hive Performance and Status page
#1712	Hive.Server.Scheduler	Implement Round Robin Scheduling for Hive
#1986	Hive.Slave	Hive should be able to shutdown slaves
#1906	Operators	SubScopesCounter should be able to assign the number of counted subscopes
#1747	Operators.Views.OperatorGraphVisualization	Implement scrolling with the mouse wheel for the OperatorGraphVisualization
#1043	Optimization	BatchRuns should show which repetition is currently processed
#1895	Optimization.Operators	Implement ProgrammableAnalyzer
#1673	Optimization.Views	The Title of RunCollectionViews should be more specific
#1789	Optimization.Views	Invert bubble size in the runcollection bubble chart view and add transparency
#2008	Optimization.Views	Add option to get data matrix from bubble chart grouping
#2016	Optimization.Views	RunCollectionBubbleChart improvements
#2048	Optimization.Views	Enlarge DropDownHeight and DropDownWidth in BubbleChart and BoxPlots
#1914	Optimizer	Improve CreateExperimentDialog
#2024	ParallelEngine	Make the degree of parallelization configurable in the ParallelEngine
#1427	Parameters	Move actual value caching down to those parameters where it is required
#1952	Persistence	Mono support for Persistence
#1452	PluginInfrastructure	Show exact HL version string in exception dialog
#1923	PluginInfrastructure	CheckTypeCompatibility does not check constraints on generic type parameters
#1926	PluginInfrastructure	Add support for command line arguments
#1081	Problems.DataAnalysis	Plugin for symbolic time series prognosis with GP
#1964	Problems.DataAnalysis.Symbolic	Symbolic Regression and Classification Solutions do not indicate if EstimationLimits are hit
#1976	Problems.DataAnalysis.Symbolic	Implement ConstantOptimizationAnalyzer to perform constant optimization after a generation is completed
#2004	Problems.DataAnalysis.Symbolic	Flag to determine if the best solutions should be updated regardless of their quality
#1924	Problems.DataAnalysis.Symbolic.Classification	Evaluator for classification problems that considers classification penalties
#1940	Problems.DataAnalysis.Symbolic.Classification	Unify model creation in SymbolicClassificationDataAnalysis
#1943	Problems.DataAnalysis.Symbolic.Classification	Add nearest neighbour model for symbolic classification
#1962	Problems.DataAnalysis.Symbolic.Regression	Use analytic gradient for constant optimization of symbolic regression models
#1292	Problems.DataAnalysis.Views	Show correlation of dataset features as HeatMap
#1481	Problems.DataAnalysis.Views	Visual view for clustering solutions displaying cluster centers and distributions
#1681	Problems.DataAnalysis.Views	Drag & Drop support for the allowed InputVariables of ProblemData instances
#1949	Problems.DataAnalysis.Views	The classification threshold view should display for which class the threshold applies
#2023	Problems.DataAnalysis.Views	The CreateEnsemble MenuItem should utilize the selected Runs of the BubbleChart
#1896	Problems.ExternalEvaluation	Allow extension of external evaluation messages
#1841	Problems.Instances	Add additional problem instances for the QAP
#1922	Problems.Instances	Improve CSV export
#1927	Problems.Instances	The CSV problem instance provider should automatically disable input variables that are constant in the training partition
#1941	Problems.Instances	Additional classification problem instances
#1942	Problems.Instances	Improve CSV import for data analysis problems
#1999	Problems.Instances	Regression problem instances for testing feature selection
#2045	Problems.Instances	Minor DataAnalysisImportDialog Improvements
#1904	Problems.QuadraticAssignment