The variable lead time stochastic inventory model with a fuzzy backorder rate

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题名:	The variable lead time stochastic inventory model with a fuzzy backorder rate
作者:	歐陽良裕;Ouyang, Liang-yuh;Chang, Hung-chi
贡献者:	淡江大學經營決策學系
日期:	2001-03
上传时间:	2009-11-30 12:21:38 (UTC+8)
出版者:	Operations Research Society of Japan
摘要:	Cost and operation of inventory depends a great deal on what happens to demand when the system is out of stock. In real inventory systems, it is more reasonable to assume that part of the excess demand is backordered and the rest is lost. However, the amount of backorders (or lost sales) often incurs disturbance due to various uncertainties. To incorporate this reality, this article attempts to apply the fuzzy set concepts to deal with the uncertain backorders and lost sales. The purpose of this paper is to modify Moon and Choi's continuous review inventory model with variable lead time and partial backorders by fuzzifying the backorder rate (or equivalently, fuzzifying the lost sales rate). We first consider the case where the lost sales rate is treated as the triangular fuzzy number. Then, through the statistical method for establishing the interval estimation of the lost sales rate, we construct a new fuzzy number, namely statistic-fuzzy number. For each fuzzy case, we investigate a computing schema for the modified continuous review inventory model and develop an algorithm to find the optimal inventory strategy.
關聯:	Journal of the operations research society of Japan 44(1), pp.19-33
显示于类别:	[管理科學學系暨研究所] 期刊論文

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