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Risk-based multivariate control chart

ISSN:0957-4174
2016年第62卷第期
1. Associate Professor, Department of Quantitative Methods, University of Pannonia, Hungary;2. PhD Student, Department of Quantitative Methods, University of Pannonia, Hungary;1. São Paulo State University, Department of Computing, Bauru, Brazil;2. Federal University of São Carlos, Department of Computing, São Carlos, Brazil;3. Middlesex University, School of Science and Technology, London, UK;1. Department of Computer Science and Engineering, Kyung Hee University (Global Campus), 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Korea;2. Telemedicine Group, University of Twente, Drienerlolaan 5, 7500 AE Enschede, Netherlands;3. Department of Multimedia Science, Sookmyung Women’s University, Cheongpa-ro 47-gil 100, Youngsan-gu, Seoul, 140-742, Korea;4. Faculty of Electrical and Electronics Engineering, Hochiminh City University of Technology HCM B2015-20-02, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam;1. Department of Computer Science, Federal University of São Carlos – UFSCar, Sorocaba, 18052-780, Brazil;2. Department of Computer Sciences, University of Wisconsin-Madison – Madison, WI 53703 USA;1. UTM Big Data Centre, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia;2. Faculty of Computing, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia;1. DISI - University of Bologna, Via Sacchi, 3, 47521 Cesena, Italy;2. HERA Group - Via Grigioni 19, 47122 Forli, Italy

Control charts are widely used tools in statistical process control (SPC). Most of the control charts operates on reliability base, so the users assume that the value of the real product characteristic is equal to the value derived from the measurement. It is a frequent case that the conformity of a product is determined by more than one product characteristics. It is recommended to apply multivariate control charts for the control of multiple product characteristics, but the measurement uncertainty can lead to incorrect decisions even in univariate case. In this study, the authors develop a risk-based multi-dimensional T2 chart (RBT2), which takes the consequences of the decisions into account and reduces the risks during the process control. The proposed method can be applied even for non-normally distributed data. Several sensitivity analyses are provided and the performance of the RBT2 chart is demonstrated when Six Sigma regulations are fulfilled.

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ISSN:0957-4174
2016年第62卷第期

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