A stochastic decision support system for economic order quantity problem

Authors:
Amir Yousefli;Mehdi Ghazanfari
Affiliations:
Department of Industrial Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;Department of Industrial Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
Venue:
Advances in Fuzzy Systems
Year:
2012

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Abstract

Improving decisions efficiency is one of the major concerns of the decision support systems. Specially in the uncertain environment, decision support systems could be implemented efficiently to simplify decision making process. In this paper stochastic economic order quantity (EOQ) problem is investigated in which decision variables and objective function are uncertain in nature and optimum probability distribution functions of them are calculated through a geometric programming model. Obtained probability distribution functions of the decision variables and the objective function are used as optimum knowledge to design a new probabilistic rule base (PRB) as a decision support system for EOQ model. The developed PRB is a new type of the stochastic rule bases that can be used to infer optimum or near optimum values of the decision variables and the objective function of the EOQ model without solving the geometric programming problem directly. Comparison between the results of the developed PRB and the optimum solutions which is provided in the numerical example illustrates the efficiency of the developed PRB.