使用JGAp（遗传算法库）和重复的染色体 [英] using JGAp (genetic algorithm library) and the duplicated chromosomes

问题描述

我使用了JGAp java遗传算法库。
当我评估染色体时，我在人口中重复染色体
样本运行：

I used the JGAp java genetic algorithm library. and when I evaluated the chromosomes , I had duplication of chromosomes in the population sample run :

evaluation 0
A B C
A D F
S F W
evaluation 1:
A B C
A D F
A D F
evaluation 2:
A D F
A D F
A D F

我使用的配置是：

conf.setKeepPopulationSizeConstant(true);
 conf.setRandomGenerator(new StockRandomGenerator());
conf.verifyStateIsValid();

我是否可以使用任何配置来获取独特的染色体？

is there any configuration that I can used in order to get unique chromosomes?

推荐答案

您可以确保只使用 NaturalSelectors 不允许重复。示例代码：

You can make sure only to use NaturalSelectors that does not allow duplicates. Example code:

conf.getNaturalSelectors(false).clear();
BestChromosomesSelector bcs = new BestChromosomesSelector(conf, 1.0d);
bcs.setDoubletteChromosomesAllowed(false);
conf.addNaturalSelector(bcs, false);

请注意，只有使用SwappingMutationOperator才可能会破坏人口的聪明才智。从JGAP修改MinimizingMakeChange示例但仅使用SwappingMutationOperator的测试显示，人口很快就会停止生成以前从未见过的人。

Please note that only using SwappingMutationOperator will probably starve the ingenuity of the population. A test modifying the MinimizingMakeChange example from JGAP, but using only the SwappingMutationOperator, shows that the population quickly stops producing individuals that have not been seen before.

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