A model based on biological invasions for island evolutionary algorithms

Authors:
Ivanoe De Falco;Antonio Della Cioppa;Domenico Maisto;Umberto Scafuri;Ernesto Tarantino
Affiliations:
ICAR---CNR, Naples, Italy;DIEII, University of Salerno, Fisciano, SA, Italy;ICAR---CNR, Naples, Italy;ICAR---CNR, Naples, Italy;ICAR---CNR, Naples, Italy
Venue:
EA'11 Proceedings of the 10th international conference on Artificial Evolution
Year:
2011

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Abstract

Migration strategy plays an important role in designing effective distributed evolutionary algorithms. Here, a novel migration model inspired to the phenomenon known as biological invasion is adopted. The migration strategy is implemented through a multistage process involving large invading subpopulations and their competition with native individuals. In this work such a general approach is used within an island parallel model adopting Differential Evolution as the local algorithm. The resulting distributed algorithm is evaluated on a set of well known test functions and its effectiveness is compared against that of a classical distributed Differential Evolution.