Nowadays, statistical process control has been widely used to monitor processes in various
fields. To monitor processes with a large number of zero observations by control charts, the …

Count data are widely available in many fields and numerous studies have designed control
charts for them to monitor count processes. However, these control charts have limited effect …

A modified exponentially weighted moving average (EWMA) scheme expanded from an
EWMA chart is an instrument for immediate detection on a small shifted size. The objective …

Many studies have focused on monitoring the incidence rate of Poisson count data with time-
varying sample sizes, with control charts being widely used. However, almost all of the …

Managers often need to face the problem to define the inventory level of items having an
irregular demand. Difficulties arise when the existing methods cannot be applied due to …

When monitoring risk in public health, count data commonly exhibit an excessive number of
zero, and the zero‐inflated Poisson (ZIP) model is often used to fit this type of data. Most …

Zero-inflated models are frequently used to deal with data having many zeros. A commonly
used model for over-dispersed data containing zeros is known as the zero-inflated Poisson …

In many different fields and industries, count data are publicly accessible. Control charts are
used in quality studies to track count procedures. These control charts, however, only have a …

The zero-inflated Poisson (ZIP) distribution is used to model count data with an excessive
number of zeros. In this article, we present a double generally weighted moving average …

The statistical monitoring of count data has received much attention in the recent years, with
applications in several areas of applied research. The basic tool for monitoring an integer …