On a parallel genetic-tabu search based algorithm for solving the graph colouring problem

Bchira Ben Mabrouk, Hamadi Hasni and Zaher Mahjoub

European Journal of Operational Research, 2009, vol. 197, issue 3, 1192-1201

Abstract: In this paper, we are interested in a particular combinatorial optimisation problem (COP), namely the graph colouring problem (GCP). To solve the GCP, we present a parallel approach adopting an efficient strategy. A brief survey on known methods for solving the GCP enables us to justify our approach which is based on a hybrid method, starting from a set of solutions initialized by the so-called RLF colouring method and combining both a genetic algorithm and the tabu search. A parallelising strategy is then applied. The performances of our method were evaluated through a series of experimentations achieved on an IBM SP2 multiprocessor. The processed graphs were chosen from two benchmark sets. The first, taken from the Internet, involves graphs whose chromatic numbers are known and the second involves random generated graphs. The analysis of the results proves the interest of our approach.

Keywords: Genetic; algorithms; Graph; colouring; Hybridation; Parallelisation; Tabu; search (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (2)

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