DocumentCode
3471627
Title
An eigenvalue control charting for process variability monitoring
Author
Noor, Anas M. ; Djauhari, Maman Abdurachman
Author_Institution
Dept. of Math., Univ. Teknol. Malaysia, Skudai, Malaysia
fYear
2011
fDate
14-17 Sept. 2011
Firstpage
605
Lastpage
608
Abstract
This paper proposes a control charting of each eigenvalue of sample covariance matrix to monitor the shift in multivariate process variability. Its performance will be compared with sample generalized variance chart, the most widely used control charting in practice. A case study using a real industrial problem shows that both charts are complementary. They might give different signal.
Keywords
control charts; covariance matrices; eigenvalues and eigenfunctions; process monitoring; statistical analysis; covariance matrix; eigenvalue control chart; generalized variance chart; process variability monitoring; Control charts; Covariance matrix; Eigenvalues and eigenfunctions; Monitoring; Process control; Quality control; control chart; multivariate process control; sample generalized variance;
fLanguage
English
Publisher
ieee
Conference_Titel
Quality and Reliability (ICQR), 2011 IEEE International Conference on
Conference_Location
Bangkok
Print_ISBN
978-1-4577-0626-4
Type
conf
DOI
10.1109/ICQR.2011.6031611
Filename
6031611
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