2010
DOI: 10.1016/j.cor.2010.01.004
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The quadratic minimum spanning tree problem: A lower bounding procedure and an efficient search algorithm

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Cited by 37 publications
(54 citation statements)
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“…Once constraints (13) are relaxed in F RLT , the resulting problem is polynomially solvable by an adaptation of the Gilmore-Lawler procedure [7,10]. Pereira et al [19] used this fact to develop a Lagrangian relaxation scheme where constraints (13) are relaxed and dualized in a Lagrangian fashion and QMSTP lower bounds were obtained by subgradient optimization.…”
Section: Aqmstp Formulations and Solution Approachesmentioning
confidence: 99%
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“…Once constraints (13) are relaxed in F RLT , the resulting problem is polynomially solvable by an adaptation of the Gilmore-Lawler procedure [7,10]. Pereira et al [19] used this fact to develop a Lagrangian relaxation scheme where constraints (13) are relaxed and dualized in a Lagrangian fashion and QMSTP lower bounds were obtained by subgradient optimization.…”
Section: Aqmstp Formulations and Solution Approachesmentioning
confidence: 99%
“…Constraints (13) are needed only if one chooses to explicitly distinguish y ef from y fe . The distinction is useful, for example, when applying the Lagrangian relaxation scheme in [19].…”
Section: Aqmstp Formulations and Solution Approachesmentioning
confidence: 99%
See 1 more Smart Citation
“…Öncan and Punnen (2010) combine the Lagrangian relaxation scheme with an extended formulation of valid inequalities to obtain tighter bounds. Cordone and Passeri (2012) re-implement the Lagrangian branch-and-bound procedure in (Assad & Xu, 1992) with some improvements.…”
Section: Introductionmentioning
confidence: 99%
“…In addition to these early methods, even more heuristics have been proposed in recent years, mostly based on local search. For example, the Tabu Thresholding algorithm (Öncan & Punnen, 2010) alternatively performs local search and random moves. In (Palubeckis, Rubliauskas, & Targamadzè, 2010), an iterated tabu search (ITS) is proposed and compared to a multi-start simulated annealing algorithm and a hybrid genetic algorithm, showing that ITS performs the best.…”
Section: Introductionmentioning
confidence: 99%