Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns

Manufacturing processes have become highly accurate and precise in recent years, particularly in the chemical, aerospace, and electronics industries. This has attracted researchers to investigate improved procedures for monitoring and detection of small process variations to remain in line with such...

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Main Authors: Alwan, Waseem, Ngadiman, Nor Hasrul Akhmal, Hassan, Adnan, Ramadhan Saufi, Syahril, Mahmood, Salwa
Format: Article
Language:English
Published: MDPI 2023
Subjects:
Online Access:http://eprints.uthm.edu.my/8533/1/J15700_059e5b6d8fb9c3ee505a7faedffe6ac7.pdf
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author Alwan, Waseem
Ngadiman, Nor Hasrul Akhmal
Hassan, Adnan
Ramadhan Saufi, Syahril
Mahmood, Salwa
author_facet Alwan, Waseem
Ngadiman, Nor Hasrul Akhmal
Hassan, Adnan
Ramadhan Saufi, Syahril
Mahmood, Salwa
author_sort Alwan, Waseem
collection UTHM
description Manufacturing processes have become highly accurate and precise in recent years, particularly in the chemical, aerospace, and electronics industries. This has attracted researchers to investigate improved procedures for monitoring and detection of small process variations to remain in line with such advances. Among these techniques, statistical process controls (SPC), in particular the control chart pattern (CCP), have become a popular choice for monitoring process variance, being utilized in numerous industrial and manufacturing applications. This study provides an improved control chart pattern recognition (CCPR) method focusing on X-bar chart patterns of small process variations using an ensemble classifier comprised of five complementing algorithms: decision tree, artificial neural network, linear support vector machine, Gaussian support vector machine, and k-nearest neighbours. Before advancing to the classification step, Nelson’s Rus Rules were utilized as a monitoring rule to distinguish between stable and unstable processes. The study’s findings indicate that the proposed method improves classification performance for patterns with mean changes of less than 1.5 sigma, and confirm that the performance of the ensemble classifier is superior to that of the individual classifier. The ensemble classifier can distinguish unstable pattern types with a classification accuracy of 99.55% and an ARL1 of 11.94.
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spelling uthm.eprints-85332023-04-05T03:20:10Z http://eprints.uthm.edu.my/8533/ Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns Alwan, Waseem Ngadiman, Nor Hasrul Akhmal Hassan, Adnan Ramadhan Saufi, Syahril Mahmood, Salwa TC Hydraulic engineering. Ocean engineering Manufacturing processes have become highly accurate and precise in recent years, particularly in the chemical, aerospace, and electronics industries. This has attracted researchers to investigate improved procedures for monitoring and detection of small process variations to remain in line with such advances. Among these techniques, statistical process controls (SPC), in particular the control chart pattern (CCP), have become a popular choice for monitoring process variance, being utilized in numerous industrial and manufacturing applications. This study provides an improved control chart pattern recognition (CCPR) method focusing on X-bar chart patterns of small process variations using an ensemble classifier comprised of five complementing algorithms: decision tree, artificial neural network, linear support vector machine, Gaussian support vector machine, and k-nearest neighbours. Before advancing to the classification step, Nelson’s Rus Rules were utilized as a monitoring rule to distinguish between stable and unstable processes. The study’s findings indicate that the proposed method improves classification performance for patterns with mean changes of less than 1.5 sigma, and confirm that the performance of the ensemble classifier is superior to that of the individual classifier. The ensemble classifier can distinguish unstable pattern types with a classification accuracy of 99.55% and an ARL1 of 11.94. MDPI 2023 Article PeerReviewed text en http://eprints.uthm.edu.my/8533/1/J15700_059e5b6d8fb9c3ee505a7faedffe6ac7.pdf Alwan, Waseem and Ngadiman, Nor Hasrul Akhmal and Hassan, Adnan and Ramadhan Saufi, Syahril and Mahmood, Salwa (2023) Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns. Machines, 11 (115). pp. 1-33. https://doi.org/10.3390/machines11010115
spellingShingle TC Hydraulic engineering. Ocean engineering
Alwan, Waseem
Ngadiman, Nor Hasrul Akhmal
Hassan, Adnan
Ramadhan Saufi, Syahril
Mahmood, Salwa
Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title_full Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title_fullStr Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title_full_unstemmed Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title_short Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns
title_sort ensemble classifier for recognition of small variation in x bar control chart patterns
topic TC Hydraulic engineering. Ocean engineering
url http://eprints.uthm.edu.my/8533/1/J15700_059e5b6d8fb9c3ee505a7faedffe6ac7.pdf
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AT hassanadnan ensembleclassifierforrecognitionofsmallvariationinxbarcontrolchartpatterns
AT ramadhansaufisyahril ensembleclassifierforrecognitionofsmallvariationinxbarcontrolchartpatterns
AT mahmoodsalwa ensembleclassifierforrecognitionofsmallvariationinxbarcontrolchartpatterns