- Tytuł:
- Phenotypic evolution with a mutation based on symmetric alpha-stable distributions
- Autorzy:
-
Obuchowicz, A.
Prętki, P. - Powiązania:
- https://bibliotekanauki.pl/articles/907644.pdf
- Data publikacji:
- 2004
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
algorytm ewolucyjny
dystrybucja stabilna
optymalizacja globalna
evolutionary algorithms
Levy-stable distributions
global optimization
surrounding effect - Opis:
- Multidimensional Symmetric alpha-Stable (S alpha S) mutations are applied to phenotypic evolutionary algorithms. Such mutations are characterized by non-spherical symmetry for alpha<2 and the fact that the most probable distance of mutated points is not in a close neighborhood of the origin, but at a certain distance from it. It is the so-called surrounding effect (Obuchowicz, 2001b; 2003b). For alpha=2, the S alpha S mutation reduces to the Gaussian one, and in the case of alpha=1, the Cauchy mutation is obtained. The exploration and exploitation abilities of evolutionary algorithms, using S alpha S mutations for different alpha, are analyzed by a set of simulation experiments. The obtained results prove the important influence of the surrounding effect of symmetric alpha-stable mutations on both the abilities considered.
- Źródło:
-
International Journal of Applied Mathematics and Computer Science; 2004, 14, 3; 289-316
1641-876X
2083-8492 - Pojawia się w:
- International Journal of Applied Mathematics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł