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- W2971673126 abstract "We study the multi-mode resource constrained project scheduling problem (MRCPSP), which we generalize to account for the case of alternative prerequisite activities (MRCPSP-AP). The MRCPSP-AP arises in many real-world applications when two or more activities can serve as the required precursor to some subsequent activity, and it aims to determine not only the optimal schedule but also the optimal activity network. We propose a total of seven discrete-time models and compare their numerical tractability through comprehensive computational studies on literature benchmarks. We also extend the well-known critical path method to handle the existence of alternative prerequisites, allowing us to precalculate tight time windows for each activity. Our computational study reveals that a formulation implementing the generalized precedence relationships in a time-aggregated fashion dominates the rest, in terms of solution quality and runtime." @default.
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- W2971673126 date "2019-09-03" @default.
- W2971673126 modified "2023-09-25" @default.
- W2971673126 title "Multi-mode Resource Constrained Project Scheduling with Alternative Prerequisites: New Models and Computational Studies" @default.
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- W2971673126 doi "https://doi.org/10.1021/acs.iecr.9b02455" @default.
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