LP relaxation-based solution algorithms for the multi-mode project scheduling with a non-renewable resource
by Meral Azizoglu; Ferda Can Çetinkaya; Selin Kırbıyık Pamir
European J. of Industrial Engineering (EJIE), Vol. 9, No. 4, 2015

Abstract: In this study, we consider a multi-mode resource allocation problem with a single non-renewable resource. We assume the resource is released at defined time points and at defined quantities. We also assume that the activity costs are charged once they are completed. Our aim is to minimise the project completion time. We formulate the problem as a pure integer programming model and show that it is strongly NP-hard. We find lower bounds by pure and mixed integer linear programming relaxations of the model and develop three heuristic procedures based on those relaxations. The results of our computational study have revealed the satisfactory performances of our lower bounds and heuristic procedures. [Received 7 December 2011; Revised 13 April 2013; Revised 4 February 2014; Accepted 11 April 2014]

Online publication date: Thu, 02-Jul-2015

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