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Solving the multi-objective Hamiltonian cycle problem using a Branch-and-Fix based algorithm
TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua, 7, 20009 Donostia-San Sebastián, Spain.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik. TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua, 7, 20009 Donostia-San Sebastián, Spain.ORCID-id: 0000-0002-4107-0991
Computer Science and Artificial Intelligence Department, University of the Basque Country (UPV/EHU), Lardizabal Pasealekua 1, 20018 Donostia-San Sebastián, Spain.
2022 (Engelska)Ingår i: Journal of Computational Science, ISSN 1877-7503, E-ISSN 1877-7511, Vol. 60, artikel-id 101578Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The Hamiltonian cycle problem consists of finding a cycle in a given graph that passes through every single vertex exactly once, or determining that this cannot be achieved. In this investigation, a graph is considered with an associated set of matrices. The entries of each of the matrix correspond to a different weight of an arc. A multi-objective Hamiltonian cycle problem is addressed here by computing a Pareto set of solutions that minimize the sum of the weights of the arcs for each objective. Our heuristic approach extends the Branch-and-Fix algorithm, an exact method that embeds the problem in a stochastic process. To measure the efficiency of the proposed algorithm, we compare it with a multi-objective genetic algorithm in graphs of a different number of vertices and density. The results show that the density of the graphs is critical when solving the problem. The multi-objective genetic algorithm performs better (quality of the Pareto sets) than the proposed approach in random graphs with high density; however, in these graphs it is easier to find Hamiltonian cycles, and they are closer to the multi-objective traveling salesman problem. The results reveal that, in a challenging benchmark of Hamiltonian graphs with low density, the proposed approach significantly outperforms the multi-objective genetic algorithm.

Ort, förlag, år, upplaga, sidor
Elsevier, 2022. Vol. 60, artikel-id 101578
Nyckelord [en]
Graph theory, Multi-objective optimization, Discrete optimization problems, Hamiltonian cycle problem, Branching algorithm
Nationell ämneskategori
Diskret matematik Datavetenskap (datalogi)
Forskningsämne
Drift och underhållsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-89825DOI: 10.1016/j.jocs.2022.101578ISI: 000820277900006Scopus ID: 2-s2.0-85124240005OAI: oai:DiVA.org:ltu-89825DiVA, id: diva2:1646479
Anmärkning

Validerad;2022;Nivå 2;2022-03-22 (hanlid);

Funder: Spanish Ministry of Science and Innovation (TIN2016-78365-R, PID2019-104966GB-I00);  Basque Government (KK-2020/00049, IT1244-19, ELKARTEK)

Tillgänglig från: 2022-03-22 Skapad: 2022-03-22 Senast uppdaterad: 2025-10-21Bibliografiskt granskad

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Galar, Diego

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Totalt: 189 träffar
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