A variable sampling interval one-sided CUSUM control chart for monitoring the multivariate coefficient of variation

Abbasi, 2020, Efficient control charts for monitoring process CV using auxiliary information, IEEE Access., 8, 46176, 10.1109/ACCESS.2020.2977833 Abbasi, 2018, Multivariate coefficient of variation control charts in phase I of SPC, Int. J. Adv. Manuf. Technol., 99, 1903, 10.1007/s00170-018-2535-3 Albert, 2010, A novel definition of the multivariate coefficient of variation, Biometr. J. Biometrische Zeitschrift, 52, 667, 10.1002/bimj.201000030 Aparisi, 2001, Hotelling's T2 control chart with variable sampling intervals, Int. J. Prod. Res., 39, 3127, 10.1080/00207540110054597 Ayyoub, 2020, Multivariate coefficient of variation charts with measurement errors, Comput. Ind. Eng., 147, 10.1016/j.cie.2020.106633 Ayyoub, 2022, Variable sampling interval EWMA chart for multivariate coefficient of variation, Commun. Stat. – Theory Methods, 51, 4617, 10.1080/03610926.2020.1818100 Brook, 1972, An approach to the probability distribution of CUSUM run length, Biometrika, 59, 539, 10.1093/biomet/59.3.539 Castagliola, 2011, Monitoring the coefficient of variation using EWMA charts, J. Qual. Technol., 43, 249, 10.1080/00224065.2011.11917861 Castagliola, 2013, Monitoring the coefficient of variation using a variable sampling interval control chart, Qual. Reliab. Eng. Int., 29, 1135, 10.1002/qre.1465 Castagliola, 2015, Monitoring the coefficient of variation using a variable sample size control chart, Int. J. Adv. Manuf. Technol., 80, 1561, 10.1007/s00170-015-6985-6 Chew, 2020, One-sided downward control chart for monitoring the multivariate coefficient of variation with VSSI strategy, J. Math. Fundam. Sci., 52, 112, 10.5614/j.math.fund.sci.2020.52.1.8 Chew, 2019, A proposed variable parameter control chart for monitoring the multivariate coefficient of variation, Qual. Reliab. Eng. Int., 35, 2442, 10.1002/qre.2536 Epprecht, 2003, Adaptive control charts for attributes, IIE Trans., 35, 567, 10.1080/07408170304427 Giner-Bosch, 2019, An EWMA control chart for the multivariate coefficient of variation, Qual. Reliab. Eng. Int., 35, 1515, 10.1002/qre.2459 Haq, 2019, New adaptive EWMA control charts for monitoring univariate and multivariate coefficient of variation, Comput. Ind. Eng., 131, 28, 10.1016/j.cie.2019.03.027 Haq, 2022, Monitoring multivariate coefficient of variation with individual observations, Qual. Reliab. Eng. Int., 38, 4236, 10.1002/qre.3204 Hawkins, 2014, The CUSUM and the EWMA head-to-head, Qual. Eng., 26, 215, 10.1080/08982112.2013.817014 Hu, 2023, Efficient CUSUM control charts for monitoring the multivariate coefficient of variation, Comput. Ind. Eng., 179, 10.1016/j.cie.2023.109159 Jalilibal, 2021, Monitoring the coefficient of variation: a literature review, Comput. Ind. Eng., 161, 10.1016/j.cie.2021.107600 Kang, 2007, A control chart for the coefficient of variation, J. Qual. Technol., 39, 151, 10.1080/00224065.2007.11917682 Khatun, 2019, One-sided control charts for monitoring the multivariate coefficient of variation in short production runs, Trans. Inst. Meas. Control, 41, 1712, 10.1177/0142331218789481 Khaw, 2018, New adaptive control charts for monitoring the multivariate coefficient of variation, Comput. Ind. Eng., 126, 595, 10.1016/j.cie.2018.10.016 Lim, 2017, Run sum chart for monitoring multivariate coefficient of variation, Comput. Ind. Eng., 109, 84, 10.1016/j.cie.2017.04.023 Muhammad, 2018, Monitoring the coefficient of variation using a variable sample size EWMA chart, Comput. Ind. Eng., 126, 378, 10.1016/j.cie.2018.09.045 Nguyen, 2021, One-sided variable sampling interval EWMA control charts for monitoring the multivariate coefficient of variation in the presence of measurement errors, Int. J. Adv. Manuf. Technol., 115, 1821, 10.1007/s00170-021-07138-8 Nguyen, 2019, One-sided synthetic control charts for monitoring the multivariate coefficient of variation, J. Stat. Comput. Simul., 89, 1841, 10.1080/00949655.2019.1600694 Nguyen, 2019, Variable sampling interval Shewhart control charts for monitoring the multivariate coefficient of variation, Appl. Stoch. Model. Bus. Ind., 35, 1253, 10.1002/asmb.2472 Qiu, 2011, Distribution-free monitoring of univariate processes, Statist. Probab. Lett., 81, 1833, 10.1016/j.spl.2011.07.004 Sabahno, 2023, Monitoring the multivariate coefficient of variation in presence of autocorrelation with variable parameters control charts, Qual. Technol. Quantit. Manage., 20, 184, 10.1080/16843703.2022.2075193 Saccucci, 1992, Exponentially weighted moving average control schemes with variable sampling intervals, Commun. Stat. – Simulat. Comput., 21, 627, 10.1080/03610919208813040 Soulé, 1996, Phenetics of natural populations. V. Genetic correlates of phenotypic variation in the pocket gopher (Thomomys bottae) in California, J. Hered., 87, 341, 10.1093/oxfordjournals.jhered.a023012 Tagaras, 1998, A survey of recent developments in the design of adaptive control charts, J. Qual. Technol., 30, 212, 10.1080/00224065.1998.11979850 Teoh, 2017, Run-sum control charts for monitoring the coefficient of variation, Eur. J. Oper. Res., 257, 144, 10.1016/j.ejor.2016.08.067 Tran, 2018, Monitoring the ratio of population means of a bivariate normal distribution using CUSUM type control charts, Stat. Pap., 59, 387, 10.1007/s00362-016-0769-4 Tran, 2021, Monitoring the coefficient of variation using variable sampling interval CUSUM control charts, J. Stat. Comput. Simul., 91, 501, 10.1080/00949655.2020.1819278 Tran, 2016, The efficiency of CUSUM schemes for monitoring the coefficient of variation, Appl. Stoch. Model. Bus. Ind., 32, 870, 10.1002/asmb.2213 Voinov, 1996 Wu, 2010, Optimization designs and performance comparison of two CUSUM schemes for monitoring process shifts in mean and variance, Eur. J. Oper. Res., 205, 136, 10.1016/j.ejor.2009.12.005 Yeong, 2016, A control chart for the multivariate coefficient of variation, Qual. Reliab. Eng. Int., 32, 1213, 10.1002/qre.1828 Yeong, 2017, Monitoring the coefficient of variation using a variable sampling interval EWMA chart, J. Qual. Technol., 49, 380, 10.1080/00224065.2017.11918004 Yeong, 2018, Monitoring the coefficient of variation using a variable parameters chart, Qual. Eng., 30, 212, 10.1080/08982112.2017.1310230 Yeong, 2023, Variable sample size and sampling interval (VSSI) and variable parameters (VP) run sum charts for the coefficient of variation, Qual. Technol. Quantit. Manage., 1 Zhang, 2014, A new exponentially weighted moving average control chart for monitoring the coefficient of variation, Comput. Ind. Eng., 78, 205, 10.1016/j.cie.2014.09.027