The impracticality of homogeneously weighted moving average and progressive mean control chart approaches

S Knoth, VG Tercero‐Gómez… - Quality and …, 2021 - Wiley Online Library
There is growing literature on new versions of “memory‐type” control charts, where
deceptively good zero‐state average run‐length (ARL) performance is misleading. Using …

Efficient homogeneously weighted moving average chart for monitoring process mean using an auxiliary variable

NA Adegoke, ANH Smith, MJ Anderson… - IEEE …, 2019 - ieeexplore.ieee.org
In this paper, we propose an efficient control chart for monitoring small shifts in a process
mean for scenarios where the process variable is observed with a correlated auxiliary …

A mixed HWMA‐CUSUM mean chart with an application to manufacturing process

M Abid, S Mei, HZ Nazir, M Riaz… - Quality and Reliability …, 2021 - Wiley Online Library
Memory‐type control charts play a significant role to identify slight changes in the
parameters of the production process. In this article, we have proposed a new cumulative …

Dynamic CUSUM chart with an integrated indicator for bearing condition monitoring

W Fan, X Zheng, C Chen, Y Li, X Liu… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
The operation status of bearings plays a critical role in mechanical systems. Current models
for condition monitoring of bearings tend to overlook the complex properties of the process …

On enhanced GLM-based monitoring: an application to additive manufacturing process

A Iqbal, T Mahmood, Z Ali, M Riaz - Symmetry, 2022 - mdpi.com
Innovations in technology assist the manufacturing processes in producing high-quality
products and, hence, become a greater challenge for quality engineers. Control charts are …

On reassessment of the HWMA chart for process monitoring

M Riaz, S Ahmad, T Mahmood, N Abbas - Processes, 2022 - mdpi.com
In the recent literature of process monitoring, homogeneously weighted moving average
(HWMA) type control charts have become quite popular. These charts are quite efficient for …

Monitoring univariate and multivariate profiles using the triple exponentially weighted moving average scheme with fixed and random explanatory variables

JC Malela-Majika, SC Shongwe, K Chatterjee… - Computers & Industrial …, 2022 - Elsevier
In many real-world applications, there is a functional relationship between a response
variable and one or more explanatory variables. In such situations, classical quality …

One-sided and two one-sided MEWMA charts for monitoring process mean

A Haq - Journal of Statistical Computation and Simulation, 2020 - Taylor & Francis
This study focuses on the development of new one-sided and two one-sided MEWMA charts
for monitoring the mean of a multivariate normal process. The one-sided MEWMA chart …

A new HWMA dispersion control chart with an application to wind farm data

M Riaz, SA Abbasi, M Abid, AK Hamzat - Mathematics, 2020 - mdpi.com
Recently, a homogeneously weighted moving average (HWMA) chart has been suggested
for the efficient detection of small shifts in the process mean. In this study, we have proposed …

Enhanced adaptive multivariate EWMA and CUSUM charts for process mean

A Haq, MBC Khoo, M Ha Lee… - Journal of Statistical …, 2021 - Taylor & Francis
The multivariate charts are mostly used to simultaneously monitor several quality
characteristics in manufacturing processes. In this study, we enhance the sensitivities of the …