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2014 | OriginalPaper | Buchkapitel

Beam-ACO for the Repetition-Free Longest Common Subsequence Problem

verfasst von : Christian Blum, Maria J. Blesa, Borja Calvo

Erschienen in: Artificial Evolution

Verlag: Springer International Publishing

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Abstract

In this paper we propose a Beam-ACO approach for a combinatorial optimization problem known as the repetition-free longest common subsequence problem. Given two input sequences \(x\) and \(y\) over a finite alphabet \(\varSigma \), this problem concerns to find a longest common subsequence of \(x\) and \(y\) in which no letter is repeated. Beam-ACO algorithms are combinations between the metaheuristic ant colony optimization and a deterministic tree search technique called beam search. The algorithm that we present is an adaptation of a previously published Beam-ACO algorithm for the classical longest common subsequence problem. The results of the proposed algorithm outperform existing heuristics from the literature.

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Metadaten
Titel
Beam-ACO for the Repetition-Free Longest Common Subsequence Problem
verfasst von
Christian Blum
Maria J. Blesa
Borja Calvo
Copyright-Jahr
2014
DOI
https://doi.org/10.1007/978-3-319-11683-9_7