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A discrete-time approximation technique for the time-cost trade-off in PERT networks

Amir Azaron; Masatoshi Sakawa; Reza Tavakkoli-Moghaddam; Nima Safaei — 2007

RAIRO - Operations Research

 We develop a discrete-time approximation technique dealing with the time-cost trade-off problem in PERT networks. It is assumed that the activity durations are independent random variables with generalized Erlang distributions, in which the mean duration of each activity is a non-increasing function of the amount of resource allocated to it. It is also assumed that the amount of resource allocated to each activity is controllable. Then, we construct an optimal control problem with three conflicting...

An interactive fuzzy satisficing method for multiobjective nonlinear integer programming problems with block-angular structures through genetic algorithms with decomposition procedures.

Sakawa, Masatoshi; Kato, Kosuke — 2009

Advances in Operations Research

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