Volume 64, Issue 4 pp. 339-356
Research Article

A memetic algorithm for the weighted feedback vertex set problem

Francesco Carrabs

Corresponding Author

Francesco Carrabs

Department of Mathematics, University of Salerno, Via Giovanni Paolo II, 132-84084-Fisciano (SA), Italy

Correspondence to: F. Carrabs; e-mail: [email protected]Search for more papers by this author
Carmine Cerrone

Carmine Cerrone

Department of Mathematics, University of Salerno, Via Giovanni Paolo II, 132-84084-Fisciano (SA), Italy

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Raffaele Cerulli

Raffaele Cerulli

Department of Mathematics, University of Salerno, Via Giovanni Paolo II, 132-84084-Fisciano (SA), Italy

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First published: 11 November 2014
Citations: 10

Abstract

Given an undirected and vertex weighted graph urn:x-wiley:00283045:media:net21577:net21577-math-0001, the Weighted Feedback Vertex Set Problem consists of finding the subset urn:x-wiley:00283045:media:net21577:net21577-math-0002 of vertices, with minimum weight, whose removal results in an acyclic graph. Finding the minimum feedback vertex set in a graph is an important combinatorial problem that has a variety of real applications. In this article, we introduce a memetic algorithm for this problem. We propose an efficient greedy procedure that quickly generates chromosomes with specific characteristics and a wise application of recent local search procedures based on k-diamonds. Computational results show that the proposed algorithm outperforms the effectiveness of two other metaheuristics recently proposed in the literature for this problem. © 2014 Wiley Periodicals, Inc. NETWORKS, Vol. 64(4), 339–356 2014

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