Results 101 to 110 of about 4,823 (188)

Optimal statistical designs of multivariate EWMA and multivariate CUSUM charts based on average run length and median run leng [PDF]

, 2006
Carta kawalan multivariat ialah alat yang berkuasa dalam kawalan proses yang melibatkan kawalan serentak beberapa cirian kualiti yang berkorelasi. Carta-carta multivariat hasil tambah longgokan {MCUSUM) dan multivariat purata bergerak berpemberat ...
Lee, Ming Ha
core  

Application of Residual-Based EWMA Control Charts for Detecting Faults in Variable-Air-Volume Air Handling Unit System

Journal of Control Science and Engineering, 2016
An online robust fault detection method is presented in this paper for VAV air handling unit and its implementation. Residual-based EWMA control chart is used to monitor the control processes of air handling unit and detect faults of air handling unit ...
Haitao Wang
doaj   +1 more source

Control charts for monitoring the mean of AR(1) data [PDF]

New product development is one of the most powerful but difficult activities in business. It is also a very important factor affecting final product quality. There are many techniques available for new product development.
Wieringa, J.E.
core   +1 more source

Jump-preserving monitoring of dependent time series using pilot estimators [PDF]

An important problem of the statistical analysis of time series is to detect change-points in the mean structure. Since this problem is a one-dimensional version of the higher dimensional problem of detecting edges in images, we study detection rules ...
Steland, Ansgar
core  

Design and Application of Risk Adjusted Cumulative Sum (RACUSUM) for Online Strength Monitoring of Ready Mixed Concrete [PDF]

The Cumulative Sum (CUSUM) procedure is an effective statistical process control tool that can be used to monitor quality of ready mixed concrete (RMC) during its production process.
Dutta, Goutam, Sarkar Debasis
core  

Multivariate Statistical Process Control Charts and the Problem of Interpretation: A Short Overview and Some Applications in Industry [PDF]

Woodall and Montgomery in a discussion paper, state that multivariate process control is one of the most rapidly developing sections of statistical process control.
Bersimis, Sotiris, Panaretos, John, Psarakis, Stelios   +2 more
core   +1 more source

A Novel Moving Average–Exponentiated Exponentially Weighted Moving Average (MA-Exp-EWMA) Control Chart for Detecting Small Shifts

Mathematics
Process monitoring plays a vital role in ensuring quality stability, and, operational efficiency across fields such as manufacturing, finance, biomedical science, and environmental monitoring.
Jun-Hao Lu, Chang-Yun Lin
doaj   +1 more source

Individuals charts and additional tests for changes in spread [PDF]

Some authors recommend the use of an additional test for detecting increases in the spread, when using a control chart for individual observations. We examine this recommendation both in a practical situation and theoretically. Both studies show that the
Trip, Albert, Wieringa, Jaap E.
core   +1 more source

Memory type Bayesian adaptive max-EWMA control chart for weibull processes

Scientific Reports
The simultaneous monitoring of both the process mean and dispersion has gained considerable attention in statistical process control, especially when the process follows the normal distribution.
Abdullah A. Zaagan, Imad Khan, Amel Ayari-Akkari, Aamir Raza, Bakhtiyar Ahmad   +4 more
doaj   +1 more source

A new EWMA chart for simultaneously monitoring the parameters of a shifted exponential distribution. [PDF]

J Appl Stat
Baranwal A, Kumar N, Chatterjee K, Koukouvinos C.   +3 more
europepmc   +1 more source