Opened 11 years ago
Closed 11 years ago
#2172 closed enhancement (done)
OffspringSelector should be configurable to use the parents for filling the population
| Reported by: | mkommend | Owned by: | abeham |
|---|---|---|---|
| Priority: | medium | Milestone: | HeuristicLab 3.3.10 |
| Component: | Algorithms.OffspringSelectionGeneticAlgorithm | Version: | 3.3.9 |
| Keywords: | Cc: |
Description
Currently the OffspringSelector uses lucky losers to fill the new population when the maximum selection pressure is exceeded. This is not an issue in the case of the standard OSGA, because this is only the case in the last generation. However, the island OSGA revives island after the migration phase and these revived islands contain lots of unfit individuals. Therefore, the population should be filled with parent individuals instead of lucky losers.
Change History (7)
comment:1 Changed 11 years ago by mkommend
- Status changed from new to accepted
comment:2 Changed 11 years ago by mkommend
comment:3 Changed 11 years ago by mkommend
- Owner changed from mkommend to abeham
- Status changed from accepted to reviewing
The SASEGASA has not been updated yet and could also exhibit the same behavior as the island offspring selection genetic algorithm.
comment:4 Changed 11 years ago by mkommend
- Component changed from Selection to Algorithms.OffspringSelectionGeneticAlgorithm
comment:5 Changed 11 years ago by abeham
- Owner changed from abeham to mkommend
- Added hierarchy of parameters to enable this as a hidden parameter in OSGA, SASEGASA, Island-OSGA
- New default value for Island-OSGA and SASEGASA is true (it will be set to false if loaded from an older file)
- Changed visibility of some properties to public
comment:6 Changed 11 years ago by mkommend
- Owner changed from mkommend to abeham
- Status changed from reviewing to readytorelease
comment:7 Changed 11 years ago by mkommend
- Resolution set to done
- Status changed from readytorelease to closed
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r10639: Added parameter to configure if parents should be used instead of lucky losers to fill the actual generation.