23:36 Changeset [14245] by abeham

#2651: worked on igraph integration

20:48 Changeset [14244] by abeham

#2651: worked on igraph integration, additional layout algorithms, density, page rank

  • added unit tests
13:00 Changeset [14243] by gkronber

#2650: renamed FactorVariable -> BinaryFactorVariable

11:39 Changeset [14242] by gkronber

#2650: added support for factor variables to OneR algorithm

10:22 Changeset [14241] by gkronber

#2650: added support for factor variables in specific solution comparison view for symbolic classification solutions


18:44 Changeset [14240] by gkronber

#2650: added support for categorical variables to LDA and MNL (TODO: OneR )

17:40 Changeset [14239] by gkronber

#2650: merged r14234:14236 from trunk to branch

17:34 Changeset [14238] by gkronber


  • added weight for FactorVariable (necessary for LR)
  • introduced VariableBase and VariableTreeNodeBase and IVariableSymbol
  • support for factors in LR
  • extended variable impacts in solution view
  • fixed ERC view for regression
  • support for FactorVariable in simplifier
  • improved support for FactorVariable in constants optimizer
  • multiple related changes and small fixes
14:25 Changeset [14237] by gkronber

#2650: work in progress..

13:42 Ticket #2655 (Symbolic regression variable coefficients are never mutated using an ...) created by gkronber
Bug in the code: […]
11:58 Changeset [14236] by gkronber

#2653: added synchronization in NearestNeighbourModel and made some related changes to GradientBoostedTreesModelSurrogate

11:45 Ticket #2654 (Neural network model does not scale input variables) created by gkronber
Also neural network ensemble model


17:09 Changeset [14235] by gkronber

#2652: added scaling and optional specification of feature-weights for kNN

16:42 Changeset [14234] by abeham

#2651: initial commit of igraph in ExtLibs

16:04 Ticket #2653 (GetEstimatedValues is not thread-safe for k-nearest neighbours model) created by gkronber
14:28 Ticket #2652 (Scaling of variable values is missing for k-nearest neighbors models) created by gkronber
Input variables are not scaled and it is not possible to specify …
11:18 Ticket #2651 (Integrate igraph in HeuristicLab) created by abeham
"igraph is a collection of network analysis tools with the emphasis on …


18:59 Changeset [14233] by gkronber

#2650 added to files missed in the last commit

18:54 Changeset [14232] by gkronber

created a feature branch for #2650 (support for categorical variables in symb reg) with a first set of changes

work in progress...

18:26 Changeset [14231] by bburlacu

#2635: Add evaluator option to aggregate statistics during evaluation (slower). Improve analyzer.

18:10 Ticket #2650 (Support for categorical variables (R factors) for symbolic regression ...) created by gkronber
We frequently encounter regression / classification problems where the …
08:55 Changeset [14230] by gkronber

#2631: minor change

08:33 Changeset [14229] by gkronber

#2371: removed usage of C# 6.0 readonly properties


18:09 Changeset [14228] by gkronber

#2371: added constructors to allow specification of random seeds for randomly generated regression problem instances (primarily for unit tests)

16:21 Changeset [14227] by gkronber

#2640: moved NSGA-II to category: 'population-based algorithms' and moved random search to category: 'single-solution algorithms'

16:16 Changeset [14226] by gkronber

#2649 adapted OnlineSharpeRatioCalculator and OnlineNormalizedMeanSquaredErrorCalculator to use PopulationVariance instead of Variance (minor difference for vectors with only a few elements)

16:05 Ticket #2649 (OnlineNMSECalculator should use population variance instead of sample ...) created by gkronber
Also see #745 and #2628
16:03 Changeset [14225] by gkronber

#745: used NMSE instead of squared Pearson's correlation coeff as results.


15:20 Changeset [14224] by bburlacu

#2647: Removed obsolete comment.

11:49 Changeset [14223] by bburlacu

#2647: Fix logical mistake.

09:40 Changeset [14222] by abeham

#2648: corrected output path

09:39 Ticket #2648 (Correct outputpath of sim# 3.0.9) created by abeham


11:10 Changeset [14221] by bburlacu

#2647: Addressed the issue described above by adding the [Storable] attribute to the node parent member, and cloning the swapped subtree during crossover.


10:52 Ticket #2647 (Crossover does not remove swapped subtrees from the non-root parent) created by bburlacu
The standard subtree crossover in HeuristicLab acts in-place, …


10:50 Changeset [14220] by bburlacu

#2438: Removed old and unused evolutionary tracking branch.

10:33 Changeset [14219] by mkommend

#2438: Deleted branch for multi-objective test functions (developed and released with ticket #1087).


13:20 Ticket #2471 (Algorithm for sequential construction of symbolic expression trees) closed by gkronber
obsolete: r14218: deleted obsolete feature exploration branch
13:19 Changeset [14218] by gkronber

#2471: deleted obsolete feature exploration branch

13:17 Ticket #2283 (Expore alternative ways for solving grammatical optimization problems) closed by gkronber
13:17 Ticket #2646 (Integrate Differential Evolution variants into trunk) created by gkronber
standard DE, GDE3 (multi-objective), and SHADE have been implemented …
13:13 Changeset [14217] by gkronber

#2283: deleted old exploration branch

13:11 Changeset [14216] by gkronber

#2283: deleted old exploration branch

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