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Multivariate statistical process control charts: an overview [PDF]

open access: yesQuality and Reliability Engineering International, 2006
AbstractIn 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 Shewhart‐type control charts, multivariate CUSUM control charts and multivariate EWMA control ...
Bersimis, Sotiris   +2 more
core   +5 more sources

Early fault detection in gearboxes via dynamic principal component analysis-driven multivariate statistical process control. [PDF]

open access: yesPLoS ONE
Early detection of gearbox failure is essential due to their critical role in industrial operations. Therefore, effective condition monitoring techniques are required to identify incipient deviations in operational behaviour.
Antonio Pérez-Torres   +4 more
doaj   +2 more sources

Advances in statistical quality control chart techniques and their limitations to cement industry

open access: yesCogent Engineering, 2022
Sustainability issues are challenging the cement industry due to its high emission of greenhouse gas, intensive energy consumption, and depletion of resources.
Daniel Ashagrie Tegegne   +2 more
doaj   +1 more source

Diagnosing Out-of-Control Signals of Multivariate Control Chart based on Variable Length PSO-SVM [PDF]

open access: yesRevista Română de Informatică și Automatică, 2021
Multivariate statistical process control is an essential procedure employed to deliver quality products in modern manufacturing and service industries. Multivariate control charts are an extensively used tool to determine whether a process is performing ...
Duo XU, Zeshui XU, Shuixia CHEN
doaj   +1 more source

Control Chart T2Qv for Statistical Control of Multivariate Processes with Qualitative Variables

open access: yesMathematics, 2023
The scientific literature is abundant regarding control charts in multivariate environments for numerical and mixed data; however, there are few publications for qualitative data. Qualitative variables provide valuable information on processes in various
Wilson Rojas-Preciado   +3 more
doaj   +1 more source

Multivariate Process Control Chart Pattern Classification Using Multi-Channel Deep Convolutional Neural Networks

open access: yesMathematics, 2023
Statistical process control (SPC) charts are commonly used to monitor quality characteristics in manufacturing processes. When monitoring two or more related quality characteristics simultaneously, multivariate T2 control charts are often employed.
Chuen-Sheng Cheng   +3 more
doaj   +1 more source

Principal Component Analysis (PCA) applied to the statistical control of multivariate processes

open access: yesInvestigación e Innovación en Ingenierías, 2022
Objective: to propose the analysis and monitoring of a chemical process sustained in the theoretical principles of a factorial method cataloged as Principal Component Analysis (PCA), whose ultimate objective is to represent the original variables of the
Juan carlos Herrera Vega   +2 more
doaj   +1 more source

Multivariate statistical process control methods for batch production: a review focused on applications

open access: yesProduction and Manufacturing Research: An Open Access Journal, 2021
In this paper, we highlight the basic techniques of multivariate statistical process control (MSPC) under the dimensionality criteria, such as Multiway Principal Component Analysis, Multiway Partial Squares, Structuration à Trois Indices de la ...
Miriam Ramos   +6 more
doaj   +1 more source

Multivariate Pattern Recognition in MSPC Using Bayesian Inference

open access: yesMathematics, 2021
Multivariate Statistical Process Control (MSPC) seeks to monitor several quality characteristics simultaneously. However, it has limitations derived from its inability to identify the source of special variation in the process.
Jose Ruiz-Tamayo   +5 more
doaj   +1 more source

Principal Alarms in Multivariate Statistical Process Control [PDF]

open access: yesJournal of Quality Technology, 2008
This paper describes a methodology for the simulation of multivariate out of control situations using in-control data. The method is based on finding the independent factors of the variability of the process, and shifting these factors one by one. These shifts are then translated in terms of the observed variables.
Sánchez, Ismael, González, Isabel
openaire   +3 more sources

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