HeuristicLab 3.3.17 - Pending

Changes to the previous release that are available in the daily build of our stable branch and will become part of the next release: ​Download HeuristicLab daily build binaries.

Features:

Ticket	Modified	Component	Summary
#2971	6 months	Problems.DataAnalysis	Intervals for RegressionProblemData/SymbolicRegressionSolution
#2968	4 months	Problems.DataAnalysis.Symbolic	Add a new formatter for symbolic expressions, which produces an infix expression as well as a list of all coefficient values

Enhancements:

Ticket	Modified	Component	Summary
#3067	7 weeks	Encodings.SymbolicExpressionTreeEncoding	Crossover probability for SubtreeCrossover
#3081	10 months	Optimization.Operators	Add static calculation methods to all DiscreteDoubleValueModifiers
#3019	15 months	Problems.DataAnalysis.Symbolic	Implementation of the Pareto Front Analysis for Symbolic Classification Problems
#3042	15 months	Problems.DataAnalysis.Symbolic.Views	Remove progress bar after constant optimization error
#3027	3 months	Random	Provide a simple, efficient, and correct implementation to sample Gaussian random variables
#3045	4 months	Scripting.Views	Dialog for compilation warnings and errors
#3089	4 months	Tests	Explicitly fail tests on ReflectionTypeLoadExceptions and BadImageFormatExceptions

Bugs:

Ticket	Modified	Component	Summary
#2806	4 months	Algorithms.DataAnalysis	Positive class value setting from classification problems is not set correctly in classification ensemble solutions
#3030	15 months	Algorithms.DataAnalysis	RF/GBT SurrogateModel triggers unnecessary recalculation
#3111	3 months	Algorithms.DataAnalysis	RandomForestClassification produces a result (RF Model Evaluation) incorrectly
#3020	19 months	Algorithms.GeneticAlgorithm	The MutatorParameter of genetic algortihms is replaced during deserialization
#3061	4 months	Encodings.SymbolicExpressionTreeEncoding	Typo in parameter name for SimpleSymbolicExpressionTreeGrammar.AddSymbols
#3041	10 months	Hive.Server	IsDisposable is overwritten when slaves say Hello
#3033	20 months	Hive.Slave	Hive slave can register itself multiple times with different client ID
#2028	6 months	MainForm.WindowsForms	Viewhost does not propagate readonly state when switching views
#2996	4 months	Optimization	Exception when cloning IndexedDataRow
#3060	16 months	Optimization	Exceptions thrown in IOptimizer.StartAsync are sometimes unhandled
#3088	6 months	PluginInfrastructure	HeuristicLab crashes if Hive Job Manager is opened while samples page is still loading
#3054	4 months	Problems.DataAnalysis	Calculation of Variable Impacts with LDA does not work
#2985	3 months	Problems.DataAnalysis.Symbolic	TreeSimplifier simplifies non-constant subtrees to constant
#3051	15 months	Problems.DataAnalysis.Symbolic	Synchronization issue of data members with [ThreadStatic] attribute in Batch and Native interpreters
#3079	3 months	Problems.DataAnalysis.Symbolic	C# code generator for symbolic expressions produces incorrect output for AQ()
#3083	4 months	Problems.DataAnalysis.Symbolic	LaTeX output for symbolic regression models is incorrect for target variables which contain special symbols
#3053	4 months	Problems.DataAnalysis.Symbolic.Classification.Views	PositiveClass value cannot bet set in the SolutionComparisonView if classes have been names
#2973	15 months	Problems.DataAnalysis.Symbolic.Views	Maximizing VariableImpactView shows no data
#3038	6 months	Problems.DataAnalysis.Views	Residual Analysis does not display data points outside of training and test
#3109	4 months	Problems.DataAnalysis.Views	RegressionSolutionLinechart shows empty DataPoints
#3023	22 months	Services.Authentication	Hive user creation sometimes fails due to unmet password requirements

Tasks:

Ticket	Modified	Component	Summary
#3032	15 months	Problems.DataAnalysis	Fixing cube root calculation for intervals and extending intervals operations
#3052	15 months	Problems.DataAnalysis.Symbolic	Provide a method in grammars to adapt variable symbols to a given dataset