Results 111 to 120 of about 5,815 (232)

Multivariate Statistical Process Control Charts: An Overview [PDF]

In this paper we discuss the basic procedures for the implementation of multivariate statistical process control via control charting. Furthermore, we review multivariate extensions for all kinds of univariate control charts, such as multivariate ...
Bersimis, Sotiris, Panaretos, John, Psarakis, Stelios   +2 more
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Adaptive EWMA Control Charts with a Time Varying Smoothing Parameter [PDF]

, 2015
It is known that time-weighted charts like EWMA or CUSUM are designed to be optimal to detect a specific shift. If they are designed to detect, for instance, a very small shift, they can be inefficient to detect moderate or large shifts.
Sánchez, Ismael, Ugaz Sánchez, Willy Ericson   +1 more
core   +1 more source

Nonparametric Double EWMA Control Chart for Process Monitoring

Revista Colombiana de Estadística, 2016
<p>In monitoring process parameters, we assume normality of the quality characteristic of interest, which is an ideal assumption. In many practical sit- uations, we may not know the distributional behavior of the data, and hence, the need arises use nonparametric techniques.
RIAZ, MUHAMMAD, ABBASI, SADDAM AKBER
openaire   +5 more sources

A generalized EWMA control chart and its comparison with the optimal EWMA, CUSUM and GLR schemes

The Annals of Statistics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Han, Dong, Tsung, Fu-gee
openaire   +3 more sources

A Photovoltaic Fault Diagnosis Method Integrating Photovoltaic Power Prediction and EWMA Control Chart

Energies
The inevitability of faults arises due to prolonged exposure of photovoltaic (PV) power plants to intricate environmental conditions. Therefore, fault diagnosis of PV power plants is crucial to ensure the continuity and reliability of power generation ...
Jun Su, Zhiyuan Zeng, Chaolong Tang, Zhiquan Liu, Tianyou Li   +4 more
doaj   +1 more source

Analytical and numerical methods for detection of a change in distributions [PDF]

, 2008
University of Technology, Sydney. Faculty of Science.This thesis aims to derive analytical approximations and numerical algorithms for analysis and design of control charts used for detection of changes in distributions.
Sukparungsee, S
core  

Optimal designs of the exponentially weighted moving average (EWMA) median chart for known and estimated parameters based on median run length

, 2020
Zhi Lin Chong, Kian Lam Tan, Michael B. C. Khoo, Wei Lin Teoh, Philippe Castagliola   +4 more
openalex   +2 more sources

Performance Evaluation of Extended EWMA Chart for AR Model with Exogenous Variables

HighTech and Innovation Journal
The extended exponentially weighted moving average (Extended EWMA) control chart is an effective statistical process control method for monitoring and identifying shifts in process mean, particularly when dealing with autocorrelated data.
Totsaporn Muangngam, Yupaporn Areepong, Saowanit Sukparungsee   +2 more
doaj   +1 more source

INVESTIGATION OF RECENT PM2.5 CHANGES IN CHONBURI PROVINCE USING EWMA CHARTS [PDF]

, 2022
KIDAKAN SAITHANU, JATUPAT MEKPARYUP
openalex   +1 more source

Design and Application of Risk Adjusted Cumulative Sum (RACUSUM) for Online Strength Monitoring of Ready Mixed Concrete [PDF]

The Cumulative Sum (CUSUM) procedure is an effective statistical process control tool that can be used to monitor quality of ready mixed concrete (RMC) during its production process.
Dutta, Goutam, Sarkar Debasis
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