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Generalized confidence intervals of quantile-based process capability indices for inverse Gaussian distribution

Quality Technology & Quantitative Management, 2022
Process capability index (PCI) is widely used to evaluate the process capability in various industries. In this article, generalized confidence intervals (GCIs) of two widely used percentile-based PCIs for the inverse Gaussian (IG) distribution are ...
Baocai Guo   +3 more
semanticscholar   +1 more source

Robust process capability indices for multiple linear profiles

Quality and Reliability Engineering International, 2021
In some statistical process control applications, the quality of a process is described by a linear relationship between the response variable(s) and the independent variable(s), which is called a linear profile. Process capability is a significant issue
S. Mehri   +3 more
semanticscholar   +1 more source

Developing loss-based functional process capability indices for simple linear profile

Journal of Statistical Computation and Simulation, 2021
Process capability of simple linear profiles (SLPs) has been already measured by functional process capability indices ( and ), which are unable to distinguish between on-target and off-target processes.
A. Pakzad   +2 more
semanticscholar   +1 more source

Robust process capability indices

Omega, 1998
Many organizations are mandating the use of process capability indices to measure and reduce variability. Managers may find the use of such indices as unreliable when the interaction of the dependency structure and outliers mask potential assignable causes of variation.
Sameer Prasad, Tom Bramorski
openaire   +1 more source

A process capability indicator

Total Quality Management, 1993
A new measure of process capability, called process capability indicator and denoted by C1is proposed. It is of the form C1=deviation indicator (DI)+w×variation indicator (VI), where DI and VI, are, respectively, measures of the deviation of the process mean from the target value and the process variation, and both are relative to the tolerance.
Lai K. Chan, T. K. Mak
openaire   +1 more source

PROCESS IMPROVEMENT USING FUZZY ROBUST PROCESS CAPABILITY INDICES

Computational Intelligence in Decision and Control, 2008
Process performance can be analyzed by using process capability indices (PCIs) successfully. They are summary statistics to depict the process situation. PCIs have not reliable results if the process observations have correlation. In this paper, PCIs called Robust Process Capability Indices (RPCIs) are analyzed unlike traditional PCIs.
Kahraman, Cengiz, Kaya, İhsan
openaire   +4 more sources

Model‐based process capability indices: The dry‐etching semiconductor case study

Quality and Reliability Engineering International, 2020
Process capability indices are widely used to check quality standards both at the production level and for business activity. They consider the location and the deviation from specification limits and targets.
R. Borgoni, D. Zappa
semanticscholar   +1 more source

Probability-Based Process Capability Indices

Communications in Statistics - Simulation and Computation, 2009
This article deals with alternative process capability indices (PCIs) to traditional basic PCIs C p , C pk , and C pm based on different fraction conforming type of probabilities. In view of various problems of constructing capability indices for univariate as well as multivariate set up, these alternative PCIs are very useful as compared to C p , C pk
K. G. Khadse, R. L. Shinde
openaire   +1 more source

Process capability indices: The allure and the perils of summarizing process performance in a single index

Quality Engineering
For many data analytics studies, summarizing the “bottom line” with only a few statistics is very tempting. This is often done to simplify communication and maximize the impact of the outcome. On the other hand, failing to consider the efforts behind the
Mahmut Onur Karaman, Murat Kulahci
semanticscholar   +1 more source

On properties of probability‐based multivariate process capability indices

Quality and Reliability Engineering International, 2020
Multivariate process capability indices (MPCIs) have been proposed to measure multivariate process capability in real‐world application over the past three decades.
Kailas Govinda Khadse, A. K. Khadse
semanticscholar   +1 more source

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