Results 21 to 30 of about 2,332,068 (309)

Monitoring of Social Network and Change Detection by Applying Statistical Process: ERGM [PDF]

open access: yesJournal of Optimization in Industrial Engineering, 2020
The statistical modeling of social network data needs much effort  because of the complex dependence structure of the tie variables. In order to formulate such dependences, the statistical exponential families of distributions can provide a flexible ...
Farshid Rajabi   +2 more
doaj   +1 more source

Some Monitoring Procedures Related to Asymmetry Parameter of Azzalini’s Skew-Normal Model

open access: yesRevstat Statistical Journal, 2019
In the real world, we often observe that the underlying distribution of some Gaussian processes tends to become skewed, when some undesirable assignable cause takes place in the process.
Chenglong Li   +3 more
doaj   +1 more source

Nonparametric control of the conditional performance in statistical process monitoring

open access: yesJournal of QualityTechnology, 2020
Because the in-control distribution and parameters are generally unknown, control limits have to be estimated using a Phase I reference sample. Because different practitioners obtain different samples, their control limit estimates will vary and ...
R. Goedhart, M. Schoonhoven, R. Does
semanticscholar   +1 more source

High-Speed Monitoring of Multidimensional Processes Using Bayesian Updates

open access: yesIEEE Access, 2022
The advent of modern data acquisition and computing techniques has enabled high-speed monitoring of high-dimensional processes. The short sampling interval makes the samples temporally correlated, even if there is no underlying autocorrelation among ...
Sangahn Kim   +2 more
doaj   +1 more source

Review of Multiscale Methods for Process Monitoring, With an Emphasis on Applications in Chemical Process Systems

open access: yesIEEE Access, 2022
Process monitoring has played an increasingly significant role in ensuring safe and efficient manufacturing operations in process industries over the past several years.
Muhammad Nawaz   +3 more
doaj   +1 more source

A bibliometric analysis of 50 years of worldwide research on statistical process control

open access: yesGestão & Produção
An increasing number of papers on statistical process control (SPC) has emerged in the last fifty years, especially in the last fifteen years. This may be attributed to the increased global competitiveness generated by innovation and the continuous ...
Fabiane Letícia Lizarelli   +4 more
doaj   +1 more source

On the Efficient Monitoring of Multivariate Processes with Unknown Parameters

open access: yesMathematics, 2020
Control charts are commonly used tools that deal with monitoring of process parameters in an efficient manner. Multivariate control charts are more practical and are of greater importance for timely detection of assignable causes in multiple quality ...
Nasir Abbas   +4 more
doaj   +1 more source

Combination of Sequential Sampling Technique with GLR Control Charts for Monitoring Linear Profiles Based on the Random Explanatory Variables

open access: yesMathematics, 2023
Control charts play a beneficial role in the manufacturing process by reduction of non-compatible products and improving the final quality. In line with these aims, several adaptive methods in which samples can be taken with variable sampling rates and ...
Ali Yeganeh   +4 more
doaj   +1 more source

Application of dynamic multi-manifold projections algorithmin statistical process monitoring

open access: yesJournal of Hebei University of Science and Technology, 2022
To solve the problem of serial correlation of industrial data and the changes of global and local structure of data in some abnormal states,the [BF]"[BFQ]time lag migration" method was used to incorporate dynamic behavior into the multi-manifold ...
Jinyu GUO, Xia WANG
doaj  

The Measurement Errors and Their Effects on the Cumulative Sum Schemes for Monitoring the Ratio of Two Correlated Normal Variables

open access: yesAxioms
Monitoring the ratio of two correlated normal random variables is often used in many industrial manufacturing processes. At the same time, measurement errors inevitably exist in most processes, which have different effects on the performance of various ...
Wei Yang, Xueting Ji, Jiujun Zhang
doaj   +1 more source

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