摘要
针对使用过程中大部分时间处于贮存状态的武器装备的特点,提出了利用ZIP模型估计武器装备备品备件需求量的方法。即假定需求量为0和需求量服从Poisson分布各占一定比例混合,由此建立了确定备品备件需求量的ZIP模型,并对模型中的参数进行估计。最后,通过模拟数据进行验证,说明了这种方法的可行性。
Aiming at some equipment being stored in most of its life cycle, a method was brought for- ward to find spare demand by using zero-inflated Poisson model. The model assumes the data equaling zero and the data with the Poisson distribution forming a mixed distribution. Based on the zero-inflat- ed Poisson model, the parameters in the model were estimated and an example was given to show the method＇s validity.
出处
《海军工程大学学报》
CAS
北大核心
2007年第6期71-74,共4页
Journal of Naval University of Engineering
