轮盘赌选择和基于排名的选择之间的区别 [英] Differences between roulette wheel selection and rank based selection

问题描述

在遗传算法中轮盘赌选择和基于排名的选择有什么区别。

what are the differences between roulette wheel selection and rank based selection in genetic algorithm.

i很困惑，现在哪一个最适合我。这就是为什么只想知道差异。

i am confused which one is best for me now. that's why just want to know the differences.

推荐答案

基于等级的选择算法根据项目的优先级将概率（被选中的概率）分配给它们。例如，优先级最低的项目可能获得10％，高于20％的项目等等。换句话说，商品被选中的概率是由算法确定的。

The Rank Based Selection algorithm assigns probability(of them getting selected) to the items according to the priority they have. For example, the least priority item might get 10%, the one above that 20% and so on. In other words, the probability of an item getting selected is modified, and is determined by the algorithm.

但是轮盘赌轮算法不会修改商品的概率。就是说，如果一个项目具有99％的概率，则在进行选择时它将保持不变。但是这里的问题是，它减少了其他人被选为零的机会。

But Roulette Wheel algorithm doesn't modify the probability of items. That is if an item has 99% probability, it will remain the same while making selection. But the problem here is, it reduces the chances of others getting selected to nil.

如果您想进一步了解，请访问此链接。

If you want to understand further, visit this link .

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