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Shake – Regicide: A New Heuristic for the Diversity Control of Evolutionary Algorithms

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3 Author(s)
Ramirez, J. ; Centro de Investig. en Matemdticas A.C., Guanajuato ; Rivera, M. ; Hernandez-Aguirre, A.

Evolutionary algorithms have been very successful at solving global optimization problems. Two competing goals govern the performance of evolutionary algorithms: exploration and exploitation. This paper proposes a new heuristic to keep population diversity: the shake and the regicide. The shake heuristic improves the exploration by perturbing the whole population. The regicide heuristic (kill the leader) reduces the risk of being, early, trapped by a local minimum. Experiments demonstrate that the Shake-Regicide heuristic improves significantly the precision of the results (in about 3 orders of magnitude) of standard differential evolution, genetic algorithm and evolution strategy.

Published in:

Artificial Intelligence - Special Session, 2007. MICAI 2007. Sixth Mexican International Conference on

Date of Conference:

4-10 Nov. 2007