Results 41 to 50 of about 5,815 (232)
PETA KENDALI EWMA RESIDUAL PADA DATA BERAUTOKORELASI
E-Jurnal Matematika, 2019 Control charts with autocorrelation can be overcome by creating control chart with residuals from the best forecasting model. EWMA control chart is a alternative to the Shewhart control chart when detecting small shifts.
NI KADEK YUNI DEWIANTARI +2 more
doaj +1 more source
Limit Properties of EWMA Charts for Stationary Processes [PDF]
, 2012 In this paper we consider a general family of EWMA charts for an arbitrary parameter of the target process. Our assumptions on the target process are very weak and they are usually satisfied if it is stationary. We distinguish between the EWMA chart based on the exact variance and the EWMA scheme based on the asymptotic variance.
Morais, Manuel Cabral +2 more
openaire +1 more source
Synthetic-type control charts for time-between-events monitoring. [PDF]
PLoS ONE, 2013 This paper proposes three synthetic-type control charts to monitor the mean time-between-events of a homogenous Poisson process. The first proposed chart combines an Erlang (cumulative time between events, Tr ) chart and a conforming run length (CRL ...
Fang Yen Yen +2 more
doaj +1 more source
A Time Truncated Moving Average Chart for the Weibull Distribution [PDF]
, 2017 A control chart of monitoring the number of failures is proposed with a moving average scheme, when the life of an item follows a Weibull distribution.
Alghamdi, S.A.D. +3 more
core +1 more source
Comparison of control charts for monitoring clinical performance using binary data. [PDF]
, 2017 BACKGROUND: Time series charts are increasingly used by clinical teams to monitor their performance, but statistical control charts are not widely used, partly due to uncertainty about which chart to use.
Cromwell, David A +4 more
core +1 more source
Neutrosophic multivariate EWMA control chart
Decision Science Letters, 2023 The MEWMA chart is one of the traditional multivariate charts which are widely employed in inspecting the quality of manufacturing and services. This chart is created through monitoring the small shifts of mean vectors of variable quality characteristics.
Wibawati Wibawati +2 more
openaire +2 more sources
Study on Likelihood-Ratio-Based Multivariate EWMA Control Chart Using Lasso
Kvalita Inovácia Prosperita, 2021 Purpose: When applying exponentially weighted moving average (EWMA) multivariate control charts to multivariate statistical process control, in many cases, only some elements of the controlled parameters change.
Takumi Saruhashi +2 more
doaj +1 more source
Towards cross-lingual alerting for bursty epidemic events [PDF]
, 2011 Background: Online news reports are increasingly becoming a source for event based early warning systems that detect natural disasters. Harnessing the massive volume of information available from multilingual newswire presents as many challenges as ...
Collier, Nigel
core +5 more sources
Multivariate control charts based on Bayesian state space models
, 2006 This paper develops a new multivariate control charting method for vector autocorrelated and serially correlated processes. The main idea is to propose a Bayesian multivariate local level model, which is a generalization of the Shewhart-Deming model for ...
Ameen +49 more
core +1 more source
A Binary Control Chart to Detect Small Jumps [PDF]
, 2009 The classic N p chart gives a signal if the number of successes in a sequence of inde- pendent binary variables exceeds a control limit. Motivated by engineering applications in industrial image processing and, to some extent, financial statistics, we ...
Rafalowicz, Ewaryst, Steland, Ansgar
core +1 more source