Markov and Markov-regenerative PERT networks
Operations Research
Simulation Modeling and Analysis
Simulation Modeling and Analysis
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Applies the response surface methodology (RSM) utilizing simple fractional designs to optimize the expected present value (EPV) of a stochastic project network with respect to the delay of activities. Such a delay could increase the EPV by postponing negative cash flows, possibly at the expense of also delaying the final payment for the project. The problem was challenging, due to a combination of high variability with a relatively flat objective function near the optimum. Comparisons with the true optimal solutions, where available, indicated the robustness of the approach.