Opened 10 years ago
Closed 10 years ago
#2137 closed defect (done)
The calculated stdev of the noise for feature selection problems is wrong
| Reported by: | mkommend | Owned by: | gkronber |
|---|---|---|---|
| Priority: | medium | Milestone: | HeuristicLab 3.3.10 |
| Component: | Problems.Instances | Version: | 3.3.9 |
| Keywords: | Cc: |
Description
Currently the sigma is calculated as sigma(target) * sqrt(noiseRatio). However, the correct formula is sigma(target) * sqrt(noiseRatio / 1-noiseRatio) to achieve a max R² of 1 - noiseRatio.
Change History (5)
comment:1 Changed 10 years ago by gkronber
- Status changed from new to accepted
comment:2 Changed 10 years ago by gkronber
comment:3 Changed 10 years ago by gkronber
- Owner changed from gkronber to mkommend
- Status changed from accepted to reviewing
comment:4 Changed 10 years ago by mkommend
- Owner changed from mkommend to gkronber
- Status changed from reviewing to readytorelease
Changes in r10440 looks fine and the ticket has no dependencies => it can be released.
comment:5 Changed 10 years ago by gkronber
- Resolution set to done
- Status changed from readytorelease to closed
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r10440: fixed a bug in the calculation of noise std.dev. in the feasture selection problem instances for symbolic regression