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The preservation of favored building blocks in the struggle for fitness: the puzzle algorithm

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2 Author(s)
Zaritsky, A. ; Dept. of Comput. Sci., Ben-Gurion Univ., Beer-Sheva, Israel ; Sipper, M.

The shortest common superstring (SCS) problem, known to be NP-complete, seeks the shortest string that contains all strings from a given set. In this paper, we present a novel coevolutionary algorithm-the Puzzle Algorithm-where a population of building blocks coevolves alongside a population of solutions. We show experimentally that our novel algorithm outperforms a standard genetic algorithm (GA) and a benchmark greedy algorithm on instances of the SCS problem inspired by deoxyribonucleic acid (DNA) sequencing. We next compare our previously presented cooperative coevolutionary algorithm with the Co-Puzzle Algorithm-the puzzle algorithm coupled with cooperative coevolution-showing that the latter proves to be top gun. Finally, we discuss the benefits of using our puzzle approach in the general field of evolutionary algorithms.

Published in:

Evolutionary Computation, IEEE Transactions on  (Volume:8 ,  Issue: 5 )

Date of Publication:

Oct. 2004

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