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Single Approximation for Biobjective Max TSP

Cristina Bazgan Laurent Gourvès Jérôme Monnot Fanny Pascual 1
1 RO - Recherche Opérationnelle
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : We propose an algorithm which returns a single Hamiltonian cycle with performance guarantee on both objectives. The algorithm is analysed in three cases. When both (resp. at least one) objective function(s) fulfill(s) the triangle inequality, the approximation ratio is $\frac{5}{12}-\varepsilon \approx 0.41$ (resp. $\frac{3}{8}-\varepsilon$). When the triangle inequality is not assumed on any objective function, the algorithm is $\frac{1+2\sqrt{2}}{14}-\varepsilon\approx0.27$-approximate.
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Submitted on : Thursday, March 3, 2016 - 5:36:16 PM
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Cristina Bazgan, Laurent Gourvès, Jérôme Monnot, Fanny Pascual. Single Approximation for Biobjective Max TSP. 9th Workshop on Approximation and Online Algorithms, Sep 2011, Saarbrücken, Germany. pp.49-62, ⟨10.1007/978-3-642-29116-6_5⟩. ⟨hal-01282507⟩



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