Changeset 16556 for branches/2971_named_intervals/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SymbolicRegressionSolution.cs

Timestamp:

01/25/19 10:30:24 (5 years ago)

Author:

chaider

Message:

#2971 Added derivates of intervals as result collection to solution view

File:

• branches/2971_named_intervals/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SymbolicRegressionSolution.cs (modified) (8 diffs)

branches/2971_named_intervals/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SymbolicRegressionSolution.cs

@@ -1 @@
-#region License Information
+#region License Information
 /* HeuristicLab
  * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
@@ -20 +20 @@
 #endregion
 
+using System.Collections.Generic;
 using System.Linq;
 using HeuristicLab.Common;
@@ -27 +28 @@
 using HeuristicLab.Optimization;
 using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
+using HeuristicLab.Problems.DataAnalysis.Implementation;
 
 namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Regression {
@@ -47 +49 @@
     private const string TestNaNEvaluationsResultName = "Test NaN Evaluations";
 
+    private const string EstimatedDerivatesResultName = "Derivates of the Model";
+    private const string EstimatedDerivationInterval = "Interval";
+
     public new ISymbolicRegressionModel Model {
       get { return (ISymbolicRegressionModel)base.Model; }
@@ -95 +100 @@
       private set { ((IntValue)EstimationLimitsResultCollection[TestNaNEvaluationsResultName].Value).Value = value; }
     }
+
+    private ResultCollection EstimatedDerivateResultCollection => 
+      (ResultCollection) this[EstimatedDerivatesResultName].Value;
+
+    public NamedIntervals EstimationInterval =>
+      (NamedIntervals) EstimatedDerivateResultCollection[EstimatedDerivationInterval].Value;
+
 
     [StorableConstructor]
@@ -119 +131 @@
       Add(new Result(EstimationLimitsResultsResultName, "Results concerning the estimation limits of symbolic regression solution", estimationLimitResults));
       RecalculateResults();
+
+      var estimationDerivatesResult = new ResultCollection();
+      Add(new Result(EstimatedDerivatesResultName, "Results concerning the derivation of symbolic regression solution", estimationDerivatesResult));
+      CalculateDerivates(estimationDerivatesResult);
     }
 
@@ -138 +154 @@
         Add(new Result(EstimationLimitsResultsResultName, "Results concerning the estimation limits of symbolic regression solution", estimationLimitResults));
         CalculateResults();
+
+        var estimationDerivatesResult = new ResultCollection();
+        Add(new Result(EstimatedDerivatesResultName, "Results concerning the derivation of symbolic regression solution", estimationDerivatesResult));
+        CalculateDerivates(estimationDerivatesResult);
       }
     }
@@ -146 +166 @@
     }
 
+    private void CalculateDerivates(ResultCollection estimationDerivatesResults) {
+      var interpreter = new IntervalInterpreter();
+      var variableRanges = (ProblemData as RegressionProblemData).VariableRangesParameter.Value.VariableIntervals;
+      var customIntervals = new Dictionary<string, Interval>();
+      var intervals = new NamedIntervals();
+
+      foreach (var variable in variableRanges) {
+        customIntervals.Add(variable.Key, new Interval(variable.Value.LowerBound, variable.Value.UpperBound));
+      }
+
+      foreach (var derivate in customIntervals) {
+        if (derivate.Key != ProblemData.TargetVariable) {
+          var derived = DerivativeCalculator.Derive(Model.SymbolicExpressionTree, derivate.Key);
+          var derivedResultInterval = interpreter.GetSymbolicExressionTreeInterval(derived, customIntervals);
+          intervals.Add(" ∂f/∂" + derivate.Key,
+            new Interval(derivedResultInterval.LowerBound, derivedResultInterval.UpperBound));
+        }
+      }
+      estimationDerivatesResults.AddOrUpdateResult("Derived Intervals", intervals);
+
+    }
+    
     private void CalculateResults() {
       ModelLength = Model.SymbolicExpressionTree.Length;