Please use this identifier to cite or link to this item: http://hdl.handle.net/11718/13652
Title: An integer programming formulation for the project scheduling problem with irregular time–cost tradeoffs
Authors: Szmerekovsky, Joseph G.
Venkateshan, Prahalad
Keywords: Programming formulation
Issue Date: 2012
Publisher: Elsevier B.V.
Citation: Szmerekovsky, J. G., & Venkateshan, P. (2012). An integer programming formulation for the project scheduling problem with irregular time–cost tradeoffs. Computers And Operations Research, 391402-1410.
Abstract: Four integer programming formulations are studied for the irregular costs project scheduling problem with time/cost trade-offs (PSIC). Three formulations using standard assignment type variables are tested against a more novel integer programming formulation. Empirical tests show that in many instances the new formulation performs best and can solve problems with up to 90 activities in a reasonable amount of time. This is explained by a reduced number of binary variables, a tighter linear programming (LP) relaxation, and the sparsity and embedded network structure of the constraint matrix of the new formulation.
URI: http://hdl.handle.net/11718/13652
ISSN: 03050548
Appears in Collections:Journal Articles

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