Migration study on a pareto-based island model for MOACOs

  • Authors:
  • Antonio M. Mora;Pablo García-Sánchez;Juan J. Merelo;Pedro Á. Castillo

  • Affiliations:
  • University of Granada, Granada, Spain;University of Granada, Granada, Spain;University of Granada, Granada, Spain;University of Granada, Granada, Spain

  • Venue:
  • Proceedings of the 15th annual conference on Genetic and evolutionary computation
  • Year:
  • 2013

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Abstract

Pareto-based island model is a multi-colony distribution scheme recently presented for the resolution, by means of ant colony optimization algorithms, of bi-criteria problems. It yielded very promising results, but the model was implemented considering a unique Pareto-front-shaped unidirectional neighborhood migration topology, and a constant migration rate. In the present work two additional neighborhood topology schemes, and four different migration rates have been tested, considering the algorithm which obtained the best results in average in the model presentation article: MOACS (Multi-Objective Ant Colony System). Several experiments have been conducted, including statistical tests for better support the study. High values for the migration rate and the use of a bidirectional neighborhood migration topology yields the best results.