Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/94120
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Type: Journal article
Title: Between a rock and a hard place: the two-to-one assignment problem
Author: Goossens, D.
Polyakovskiy, S.
Spieksma, F.
Woeginger, G.
Citation: Mathematical Methods of Operations Research, 2012; 76(2):223-237
Publisher: Springer Verlag
Issue Date: 2012
ISSN: 1432-5217
1432-5217
Statement of
Responsibility: 
Dries Goossens, Sergey Polyakovskiy, Frits C.R. Spieksma and Gerhard J. Woeginger
Abstract: We describe the two-to-one assignment problem, a problem in between the axial three-index assignment problem and the three-dimensional matching problem, having applications in various domains. For the (relevant) case of decomposable costs satisfying the triangle inequality we provide, on the positive side, two constant factor approximation algorithms. These algorithms involve solving minimum weight matching problems and transportation problems, leading to a 2-approximation, and a 3/2-approximation. Moreover, we further show that the best of these two solutions is a 4/3 -approximation for our problem. On the negative side, we show that the existence of a polynomial time approximation scheme for our problem would imply P=NP. Finally, we report on some computational experiments showing the performance of the described heuristics.
Keywords: Assignment problem; matching problem; efficient algorithm; approximation
Rights: © Springer-Verlag 2012
RMID: 0030007731
DOI: 10.1007/s00186-012-0397-2
Appears in Collections:Computer Science publications

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