An Island Model based on Stigmergy to solve optimization problems

Autor: Grasiele Regina Duarte, Afonso C. C. Lemonge, Beatriz Souza Leite Pires de Lima, Leonardo Goliatt da Fonseca
Rok vydání: 2020
Předmět:
Zdroj: Natural Computing. 20:413-441
ISSN: 1572-9796
1567-7818
DOI: 10.1007/s11047-020-09819-x
Popis: Island Model (IM) is an alternative often used to parallel Evolutionary Algorithms (EA). In IM, the population is distributed between islands that evolve their solutions in parallel, connected by a topology. Periodically, solutions migrate between islands according to a migration policy. The IM can be seen as an ideal structure to combine different algorithms to be used in an organized and cooperative way to solve a problem. Motivated by the number and distinction of EAs proposed in the last decades, in terms of performance and evolutionary behavior, this work proposes a hybrid configuration for IM, called Stigmergy Island Model (Stgm-IM), inspired by the natural phenomenon of stigmergy. Stigmergy is present in groups of some social species, and, by it, their agents organize themselves and maintain a level of cooperation through indirect communication. The Stgm-IM was evaluated regarding its evolutionary behavior and its performance on a benchmark suite of fifteen optimization problems, showing expected results.
Databáze: OpenAIRE