January 2020
Intermediate to advanced
346 pages
9h 8m
English
Content preview from Hands-On Genetic Algorithms with Python
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Blend crossover
In the blend crossover (also known as BLX), each offspring is randomly selected from the following interval created by its parents:
The parameter α is a constant, whose value lies between 0 and 1. With larger values of α, the interval gets wider.
For example, if the parents' values are 1.33 and 5.72, the following will be the case:
- An α value of 0 will yield the interval [1.33, 5.72] (similar to the interval between the parents)
- An α value of 0.5 will yield the interval [-0.865, 7.915] (twice as wide as the interval between the parents)
- An α value of 1.0 will yield the interval [-3.06, 10.11] (three times wider than the interval ...
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