A fix-and-optimize heuristic for the ITC2021 sports timetabling problem.

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dc.contributor.authorFonseca, George Henrique Godim da
dc.contributor.authorToffolo, Túlio Ângelo Machado
dc.date.accessioned2023-07-03T16:41:03Z
dc.date.available2023-07-03T16:41:03Z
dc.date.issued2022pt_BR
dc.description.abstractThis paper addresses the general and challenging Sports Timetabling Problem proposed during the International Timetabling Competition of 2021 (ITC2021). The problem is expressed in a flexible format which enables modeling a number of real-world constraints that often occur in Sports Timetabling. An integer programming (IP) formulation and a fix-and-optimize heuristic are proposed to address the problem. The fix-and-optimize approach uses the IP formulation to heuristically decompose the problem into sub-problems and efficiently search on very large neighborhoods. The diverse ITC2021 benchmark instances were used to evaluate the proposed methods. The formulation resulted in proven optimal solutions for two instances. However, it failed to produce feasible solutions for most instances. The proposed fix-and-optimize, which uses an automatic sub-problem size calibration strategy, resulted in feasible solutions for 37 out of the 45 ITC2021 instances. Among these solutions, four are the best known in the literature. The proposed approach participated in the ITC2021 and was one of the finalists.pt_BR
dc.identifier.citationFONSECA, G. H. G. da; TOFFOLO, T. A. M. A fix-and-optimize heuristic for the ITC2021 sports timetabling problem. Journal of Scheduling, v. 25, p. 273-286, jun. 2022. Disponível em: <https://link.springer.com/article/10.1007/s10951-022-00738-6>. Acesso em: 03 maio 2023.pt_BR
dc.identifier.doihttps://doi.org/10.1007/s10951-022-00738-6pt_BR
dc.identifier.issn1099-1425
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/16841
dc.identifier.uri2https://link.springer.com/article/10.1007/s10951-022-00738-6pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectSports timetablingpt_BR
dc.subjectRound robin tournamentpt_BR
dc.subjectFix-and-optimizept_BR
dc.titleA fix-and-optimize heuristic for the ITC2021 sports timetabling problem.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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