THE HERMITE DISTRIBUTION AS A MODEL OF DEMAND DURING LEAD TIME FOR SLOW‐MOVING ITEMS
提出一种名为埃尔米特的分布，用于建模慢速移动品项在提前期内的需求，它像泊松和拉普拉斯分布一样简单易用，且在特定条件下是精确分布，能提高分析精度。
ABSTRACT Heretofore, the Poisson and the Laplace distributions have been used to model demand during lead time for slow‐moving items. In this paper, we present a Poisson‐like distribution called the Hermite. The advantage of the Hermite is that it is as simple to use as the Poisson and the Laplace are. Moreover, the Hermite is the exact distribution of demand during lead time when unit demand is Poisson, P (Λ), and lead time is normally distributed, N (μ, σ 2 ), so long as (μ/σ 2 )≥Λ. Thus, the Hermite can enhance the accuracy of analysis as well as add to the tools available to the analyst.