Journal
EXPERT SYSTEMS WITH APPLICATIONS
Volume 39, Issue 5, Pages 5271-5278Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eswa.2011.11.012
Keywords
Reliability-redundancy optimization; Harmony search; Differential evolution; Coevolution
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Funding
- National Science Foundation of China [61174189, 60834004]
- Doctoral Program Foundation of Institutions of Higher Education of China [20100002110014]
- National Key Basic Research and Development Program of China [2009CB320602]
- National Science and Technology Major Project of China [2011ZX02504-008]
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Solving reliability-redundancy optimization problems via meta-heuristic algorithms has attracted increasing attention in recent years. In this paper, an effective coevolutionary differential evolution with harmony search algorithm (CDEHS) is proposed to solve the reliability-redundancy optimization problem by dividing the problem into a continuous part and an integer part. In CDEHS, two populations evolve simultaneously and cooperatively, where one population for the continuous part evolves by means of differential evolution while another population for the integer part evolves by means of harmony search. After half of the whole evolving process, the integer part stops evolving and provides the best solution to the other part for further evolving with differential evolution. Simulations results based on three typical problems and comparisons with some existing algorithms show that the proposed CDEHS is effective, efficient and robust for solving the reliability-redundancy optimization problem. (C) 2011 Elsevier Ltd. All rights reserved.
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