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240326s2024 xx |||||o 00| ||eng c |
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|a 10.1080/02664763.2023.2170336
|2 doi
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|a pubmed24n1349.xml
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|a (NLM)38524795
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Imran, Muhammad
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Investigating zero-state and steady-state performance of MEWMA-CoDa control chart using variable sampling interval
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|c 2024
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 26.03.2024
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|a published: Electronic-eCollection
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Informa UK Limited, trading as Taylor & Francis Group.
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|a Traditional process monitoring control charts (CCs) focused on sampling methods using fixed sampling intervals (FSIs). The variable sampling intervals (VSIs) scheme is receiving increasing attention, in which the sampling interval (SI) length varies according to the process monitoring statistics. A shorter SI is considered when the process quality indicates the possibility of an out-of-control (OOC) situation; otherwise, a longer SI is preferred. The VSI multivariate exponentially moving average for compositional data (VSI-MEWMACoDa) CC based on a coordinate representation using isometric log-ratio (ilr) transformation is proposed in this study. A methodology is proposed to obtain the optimal parameters by considering the zero-state (ZS) average time to signal (ZATS) and the steady-state (SS) average time to signal (SATS). The statistical performance of the proposed CC is evaluated based on a continuous-time Markov chain (CTMC) method for both cases, the ZS and the SS using a fixed value of in-control (IC) ATS0. Simulation results demonstrate that the VSI-MEWMACoDa CC has significantly decreased the OOC average time to signal (ATS) than the FSIMEWMACoDa CC. Moreover, it is found that the number of variables (d) has a negative impact on the ATS of the VSI-MEWMACoDa CC, and the subgroup size (n) has a mildly positive impact on the ATS of the VSI-MEWMACoDa CC. At the same time, the SATS of the VSI-MEWMACoDa CC is less than the ZATS of the VSI-MEWMACoDa CC for all the values of n and d. The proposed VSI-MEWMACoDa CC under steady-State performs effectively compared to its competitors, such as the FSI-MEWMACoDa CC, the VSI-T2CoDa CC and the FSI-T2CoDa CC. An example of an industrial problem from a plant in Europe is also given to study the statistical significance of the VSI-MEWMACoDa CC
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|a Journal Article
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|a Average time to signal
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| 650 |
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4 |
|a compositional data
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| 650 |
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4 |
|a steady-state
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| 650 |
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|a variable sampling interval
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| 650 |
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4 |
|a zero-state
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| 700 |
1 |
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|a Sun, Jinsheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Xuelong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zaidi, Fatima Sehar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Anan
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of applied statistics
|d 1991
|g 51(2024), 5 vom: 30., Seite 913-934
|w (DE-627)NLM098188178
|x 0266-4763
|7 nnns
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| 773 |
1 |
8 |
|g volume:51
|g year:2024
|g number:5
|g day:30
|g pages:913-934
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| 856 |
4 |
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|u http://dx.doi.org/10.1080/02664763.2023.2170336
|3 Volltext
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