Custom Query (2734 matches)
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Ticket | Resolution | Summary | Owner | Reporter |
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#3099 | done | Crossvalidation meta-alg ignores estimation limits from embedded symbolic regression problem | mkommend | gkronber |
#3095 | done | Non-linear regression does not support power function | gkronber | gkronber |
Description |
In the interpreter for SymReg GP we round powers to the closest integer. Models where this kind of rounding is necessary cannot be handled by autodiff. Therefore, we disabled parameter optimization for all models with power symbols. However, exponentiation with integer powers could be handled easily in autodiff code for parameter optimization by fixing the power. This would be convenient for NLR because polynomials could be input directly instead of rewriting them to via cube(), sqr(), and products. Backwards compatibility: For SymReg GP it was not possible so far to use the power symbol in combination with parameter optimization (exception). If we change the parameter optimization code to fail when encountering a non-integer power then the code will still fail because this will naturally occur for GP trees. |
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#3094 | done | Exception in CrossValidationView | mkommend | gkronber |
Description |
************** Exception Text ************** System.NullReferenceException: Object reference not set to an instance of an object. at HeuristicLab.Algorithms.DataAnalysis.Views.CrossValidationView.shuffleSamplesCheckBox_CheckedChanged(Object sender, EventArgs e) in C:\reps\hl-core\trunk\HeuristicLab.Algorithms.DataAnalysis.Views\3.4\CrossValidationView.cs:line 204 at System.Windows.Forms.CheckBox.OnCheckedChanged(EventArgs e) at System.Windows.Forms.CheckBox.set_CheckState(CheckState value) at System.Windows.Forms.CheckBox.set_Checked(Boolean value) at HeuristicLab.Algorithms.DataAnalysis.Views.CrossValidationView.OnContentChanged() in C:\reps\hl-core\trunk\HeuristicLab.Algorithms.DataAnalysis.Views\3.4\CrossValidationView.cs:line 63 at HeuristicLab.MainForm.WindowsForms.ContentView.set_Content(IContent value) in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Views\ContentView.cs:line 51 at HeuristicLab.MainForm.WindowsForms.ViewHost.set_ActiveView(IContentView value) in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Controls\ViewHost.cs:line 79 at HeuristicLab.MainForm.WindowsForms.ViewHost.OnViewTypeChanged() in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Controls\ViewHost.cs:line 181 at HeuristicLab.MainForm.WindowsForms.ViewHost.set_ViewType(Type value) in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Controls\ViewHost.cs:line 127 at HeuristicLab.MainForm.WindowsForms.ViewHost.OnContentChanged() in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Controls\ViewHost.cs:line 145 at HeuristicLab.MainForm.WindowsForms.ContentView.set_Content(IContent value) in C:\reps\hl-core\trunk\HeuristicLab.MainForm.WindowsForms\3.3\Views\ContentView.cs:line 51 at HeuristicLab.Optimization.Views.ExperimentTreeView.treeview_NodeMouseClick(Object sender, TreeNodeMouseClickEventArgs e) in C:\reps\hl-core\trunk\HeuristicLab.Optimization.Views\3.3\ExperimentTreeView.cs:line 601 at System.Windows.Forms.TreeView.OnNodeMouseClick(TreeNodeMouseClickEventArgs e) at System.Windows.Forms.TreeView.WmNotify(Message& m) at System.Windows.Forms.TreeView.WndProc(Message& m) at HeuristicLab.Optimization.Views.ExperimentTreeView.CustomTreeView.WndProc(Message& m) in C:\reps\hl-core\trunk\HeuristicLab.Optimization.Views\3.3\ExperimentTreeView.cs:line 914 at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) |