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Investigação Operacional
Print version ISSN 0874-5161
Abstract
SCHUTZ, G. and PIRES, F. M.. A genetic based algorithm for the quadratic 0-1 problem. Inv. Op. [online]. 2003, vol.23, n.1, pp.71-84. ISSN 0874-5161.
In this work we present an algorithm to the unrestricted binary quadratic program. This approach combines genetic operators with greedy and heuristic procedures. We started from a genetic based algorithm and replaced the random mutation by a greedy procedure based on each variable contribution to the objective function. We also introduced in the genetic population an individual obtained by a heuristic that finds a local star minimum point. Computational experience with a set of test-problems, known from literature, is reported and analysed. Our results are quite promising.
Keywords : Quadratic 0-1 programming; Genetic Algorithms; Hybrid Algorithms.