Opened 9 years ago

Closed 9 years ago

Last modified 9 years ago

#1117 closed feature request (done)

Evaluation of symbolic regression solutions based on the correlation coefficient instead of the (scaled) MSE

Reported by: gkronber Owned by: mkommend
Priority: medium Milestone: HeuristicLab 3.3.1
Component: ZZZ OBSOLETE: Problems.DataAnalysis.Regression Version: 3.3.1
Keywords: Cc:

Description

Maximizing the Pearson's correlation coefficient r² is equivalent to maximization of the scaled MSE, however the calculation of r² is more efficient because it can be calculated in a single pass while the scaled MSE has to be calculated in two passes.

Change History (10)

comment:1 Changed 9 years ago by gkronber

  • Status changed from new to assigned

comment:2 Changed 9 years ago by gkronber

Added correlation coefficient evaluator for symbolic regression problems with r4127.

comment:3 Changed 9 years ago by gkronber

r4190:

  • Moved upper and lower estimation limit parameters into ISymbolicRegressionEvaluator interface and introduced an Evaluate method in the interface in preparation for a ISymbolicRegressionEvaluator parameter for the validation best solution analyzer.

comment:4 Changed 9 years ago by gkronber

r4191:

  • Changed validation best solution analyzer and tournament pruning operator to use the evaluator specified in the problem parameters.

comment:5 Changed 9 years ago by gkronber

  • Status changed from assigned to accepted

comment:6 Changed 9 years ago by gkronber

  • Owner changed from gkronber to mkommend
  • Status changed from accepted to reviewing

comment:7 Changed 9 years ago by mkommend

  • Status changed from reviewing to readytorelease

comment:8 Changed 9 years ago by mkommend

  • Resolution set to done
  • Status changed from readytorelease to closed

comment:9 Changed 9 years ago by swagner

  • Milestone changed from Iteration 4 to Current

Milestone Iteration 4 deleted

comment:11 Changed 9 years ago by swagner

  • Milestone changed from Current to HeuristicLab 3.3.0

Milestone Current deleted

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