Results 71 to 80 of about 6,021 (172)

A control chart for monitoring image processes based on convolutional neural networks

open access: yesStatistica Neerlandica, Volume 79, Issue 1, February 2025.
In this paper, the problem of monitoring image processes with spatially correlated pixels over time is considered. An exponentially weighted moving average (EWMA) control chart for monitoring such processes based on a convolutional neural network (CNN) is proposed.
Yarema Okhrin   +2 more
wiley   +1 more source

Zero-Defect Manufacturing in the Industry 4.0 Era: A Hybrid Approach to Detecting Quality Shifts

open access: yesITEGAM-JETIA
Thanks to the emergence of the Industry 4.0 paradigm, the idea of Zero-Defect Manufacturing (ZDM) has now been claimed to be possible. The ZDM is based on four strategies: detecting, repairing, predicting, and preventing.
Rafael Kovalechyn   +2 more
doaj   +1 more source

Monitoring Reliability for Three-Parameter Frechet Distribution Using Control Charts

open access: yesIEEE Access, 2020
Control Charts for attributes have been widely adopted for examining the fraction non-conforming or non-conformities in a process. However, Shewhart control charts may face some practical problems when the process fraction of non-conformities is very low.
Youlong Wu   +4 more
doaj   +1 more source

Monitoring Industrial Processes with Robust Control Charts

open access: yesRevstat Statistical Journal, 2009
The Shewhart control charts, used for monitoring industrial processes, are the most popular tools in Statistical Process Control (SPC). They are usually developed under the assumption of independent and normally distributed data, an assumption rarely ...
Fernanda Figueiredo , M. Ivette Gomes
doaj   +1 more source

Negative Binomial charts for monitoring high-quality processes [PDF]

open access: yes, 2008
Good control charts for high quality processes are often based on the number of successes between failures. Geometric charts are simplest in this respect, but slow in recognizing moderately increased failure rates p.
Albers, W.
core   +3 more sources

MEASUREMENT OF QUALITY MANAGEMENT SYSTEM PERFORMANCE IN MEAT PROCESSING

open access: yesТеория и практика переработки мяса, 2017
Modern methods aimed to ensure the quality of foods require to implement and certify quality management systems in processing plants. In this case, to measure the effectiveness of existing QMS is often a very difficult task for the leadership due to the ...
Elena S. Voloshina, Nina I. Dunchenko
doaj   +1 more source

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

open access: yes
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

Automation of Data Collection for Measuring The Quality of E-Commerce [PDF]

open access: yes, 2013
The research aims to help managers in information gathering web log visitors based on traffic data, building automation data for determining the needs of e-Commerce extensibility, and design of information systems in the process of database interaction ...
Andi, Gunawan   +2 more
core  

Multivariate control charts based on Bayesian state space models

open access: yes, 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

Contrast between Shewhart for MR and Cusum Variance control chart in the monitoring of hydrogen potential in plant protectors

open access: yesIteckne, 2018
One of the most significant aspects to improve the quality of the processes is to avoid the increase of the variability, so it is important the continuous monitoring of the quality feature, which allows to know its condition and behavior over time.
Roberto José Herrera-Acosta   +2 more
doaj   +1 more source

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