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이상완,홍성일 한국경영과학회 1992 韓國經營科學會誌 Vol.17 No.3
MODM(multiobjective decision-making)problem is very complex system for the analyst. The problem is more complex if the goals of each of the objective functions are expressed imprecisely. It requires suitable MODM method to deal with imprecisions. Therefore, we present a new interactive fuzzy decision making method for solving multiobjective nonlinear programming problems by assuming that the decision maker(DM) has imprecise goals that assume fuzzy linguistic variable for each of the objective functions. The imprecise goals of the DM are quantified by eliciting corresponding membership functions through the interactive with the DM out of six membership functions. After determining membership functions, in order to generate the compromise or satisficing solution which is λ-pareto optimal, λ-max problem is solved. The higher degree of membership is chosen to satisfy imprecise goals of all objective functions by combining the membership functions. Then, the values are the compromise or satisficing solution. On the basis of the proposed method, an interactive computer programming is written to implement man-machine interactive procedures. Our programming is a revised version of sequential unconstrained minimization technique. Finally, a numerical example illustrates various aspects of the results developed in this paper.
이상완,김해식,남현우 동아대학교 생산기술연구소 1999 生産技術硏究所硏究論文集 Vol.4 No.1
Cellular manufacturing is a promising manufacturing philosophy and strategy for engaging in international competition. Cell formation can be defined as the part of the cell design process in Cellular manufacturing systems that deals with the identification of the family of the parts and the group of machines on which these parts to be processed. In this paper, a sophisticated linear programming model is proposed to simultaneously form manufacturing cells and minimize the total costs of dealing with exceptional elements. Also, we will propose a new method to solve the cell formation problem in the fuzzy environment.