Croston’s method is generally viewed as being superior to exponential smoothing when the demand is intermittent, but it … has the drawbacks of bias and an inability to deal with obsolescence, where the demand for an item ceases altogether …. Several variants have been reported, some of which are unbiased on certain types of demand, but only one recent variant …

Intermittent demand commonly occurs with inventory data, with many time periods having no demand and small demand in … the other periods. Croston's method is a widely used procedure for intermittent demand forecasting. However, it is an ad … intermittent demand data. However, we find that the point forecasts and prediction intervals based on such underlying models may …

In a stochastic supply chain network knowing the exact distribution of lead-time demand (LTD) for each node allows … variables: demand quantity, lead-time, and inter-demand time are uncertain and can follow any probability distribution. The … model is based on a conventional nQ batch policy for each node with discrete time and continuous demand. Any network can be …

Intermittent demand is characterized by occasional demand arrivals interspersed by time intervals during which no … demand occurs. These demand patterns pose considerable difficulties in terms of forecasting and stock control due to their … compound nature, which implies variability both in terms of demand arrivals and demand sizes. An intuitively appealing strategy …

Spare parts are known to be associated with intermittent demand patterns and such patterns cause considerable problems …. Compound distributions have been used to model intermittent demand patterns; there is however a lack of theoretical analysis … investigation on the goodness of fit of various compound Poisson distributions and we develop a distribution-based demand …

Organizations with large-scale inventory systems typically have a large proportion of items for which demand is …-period lead-time demand distribution in special cases and an effective simulation scheme more generally. We also develop … ZIP model is compared to a number of existing methods using data on the monthly demand for 1,046 automobile parts …

Owing to the sporadic nature of demand for aircraft maintenance repair parts, airline operators perceive difficulties … in parts demand forecasting. In this paper we investigate the sources of demand lumpiness, as a function of flying hours …, that may affect the parts demand rate. Experimental results of demand lumpiness, measured by the square coefficient of …

intermittent demand items. Applying appropriate forecasting and stock control methods to theoretically generated compound Poisson … demand data we show that correlation in intermittent demand does play a role in forecast quality and stock control …