Please use this identifier to cite or link to this item: http://ri.ufs.br/jspui/handle/riufs/1708
Document Type: Artigo
Title: The minimum stabbing triangulation problem: IP models and computational evaluation
Authors: Piva, Breno
Souza, Cid Carvalho de
Issue Date: 2012
Abstract: The minimum stabbing triangulation of a set of points in the plane (mstr) was previously investigated in the literature. The complexity of the mstr remains open and, to our knowledge, no exact algorithm was proposed and no computational results were reported earlier in the literature of the problem. This paper presents integer programming (ip) formulations for the mstr, that allow us to solve it exactly through ip branch-and-bound (b&b) algorithms. Moreover, one of these models is the basis for the development of a sophisticated Lagrangian heuristic for the problem. Computational tests were conducted with two instance classes comparing the performance of the latter algorithm against that of a standard (exact) b&b. The results reveal that the Lagrangian algorithm yielded solutions with minute, and often null, duality gaps for instances with several hundreds of points in small computation times.
Keywords: Minimum stabbing triangulation
Algoritmos
Integer programming
Programação linear inteira
ISSN: 0302-9743
Publisher / Institution : Springer Berlin Heidelberg
Citation: PIVA, B.; SOUZA, C. C. The minimum stabbing triangulation problem: IP models and computational evaluation. Lecture Notes in Computer Science, v. 7422, 2012. Disponível em: <http://dx.doi.org/10.1007/978-3-642-32147-4_5>. Acesso em: 16 mar. 2016.
License: © Springer International Publishing AG - Artigo publicado originalmente em: http://dx.doi.org/10.1007/978-3-642-32147-4_5
URI: https://ri.ufs.br/handle/riufs/1708
Appears in Collections:DCOMP - Artigos de periódicos

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