Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Maria Rapoo"'
Publikováno v:
International Journal for Quality Research, Vol 12, Iss 1, Pp 17-42 (2018)
In statistical process control and monitoring (SPCM), traditional (or classical) X control schemes are designed under the assumption of normally distributed data. However, in real-life applications, the normality assumption could easily fail to hold,
Externí odkaz:
https://doaj.org/article/d8a672bdef374240b25d7388826dcfb1
Autor:
Zhi Lin Chong, Jean-Claude Malela-Majika, Sandile Charles Shongwe, Muhammad Aslam, Eeva Maria Rapoo
Publikováno v:
Quality and Reliability Engineering International. 37:3580-3599
Publikováno v:
Communications in Statistics - Theory and Methods. 49:4996-5027
Nonparametric statistical process monitoring schemes are robust alternatives to traditional parametric process monitoring schemes, especially when the assumption of normality is invalid or when we ...
Publikováno v:
International Journal of Quality & Reliability Management. 35:711-728
Purpose The purpose of this paper is to develop an exponentially weighted moving average (EWMA) control chart based on the Wilcoxon rank-sum (WRS) statistic using repetitive sampling to improve the sensitivity of the EWMA control chart to process mea
Publikováno v:
Quality and Reliability Engineering International. 33:1983-2002
In this paper, we propose distribution-free mixed cumulative sum-exponentially weighted moving average (CUSUM-EWMA) and exponentially weighted moving average-cumulative sum (EWMA-CUSUM) control charts based on the Wilcoxon rank-sum test for detecting
Publikováno v:
Journal of Probability and Statistics, Vol 2019 (2019)
The one-sided and two-sided Shewhart w-of-w standard and improved runs-rules monitoring schemes to monitor the mean of normally distributed observations from independent and identically distributed (iid) samples are investigated from an overall perfo
Publikováno v:
Journal of Statistical Computation and Simulation. 86:3715-3734
Whenever a practitioner is not sure about the underlying process distribution, alternative monitoring schemes that may be used are called nonparametric charts. A nonparametric scheme mostly used to monitor the difference in the means of two samples i
Autor:
Alexandra Rodkina, Eeva Maria Rapoo
Publikováno v:
Advances in Difference Equations, Vol 2017, Iss 1, Pp 1-29 (2017)
We consider a perturbed linear stochastic difference equation 1 $$ X(n+1)=a(n)X(n)+g(n)+\sigma(n)\xi(n+1), \quad n=0, 1, \dots, \qquad X_{0}\in\mathbb{R}, $$ with real coefficients $a(n)$ , $g(n)$ , $\sigma(n)$ , and independent identically distribut
We consider the use of adaptive timestepping to allow a strong explicit Euler-Maruyama discretisation to reproduce dynamical properties of a class of nonlinear stochastic differential equations with a unique equilibrium solution and non-negative, non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90242a9d926a31f45ebc8ae435108e6d
Publikováno v:
European J. of Industrial Engineering. 13:117
This paper develops two new synthetic double sampling (SDS) charts based on the revised side-sensitive (RSS) and modified side-sensitive (MSS) schemes for monitoring the location process parameter. In this paper, we first give the operation of the pr