Control chart pattern recognition using spectral clustering technique and support vector machine under gamma distribution

PH Lee, CC Torng, CH Lin, CY Chou - Computers & Industrial Engineering, 2022 - Elsevier
Most studies on control chart patterns (CCPs) recognition assume that the measured values
of process characteristic follow a normal distribution. However, by collecting large-size on …

One-sided Shewhart control charts for monitoring the ratio of two normal variables in short production runs

KD Tran, AA Nadi, TH Nguyen, KP Tran - Journal of Manufacturing …, 2021 - Elsevier
Monitoring the ratio of two normal random variables plays an important role in several
manufacturing environments. In addition, the traditional control charts that have been …

A new EWMA median chart with measurement errors in short production runs–an application in yogurt cup filling process

S Saha, MBC Khoo, SS Abubakar… - Quality and Reliability …, 2022 - Wiley Online Library
This article presents an exponentially weighted moving average (EWMA) median chart for
short production runs (SPR)(called EWMA SPR median chart). This chart improves the …

Optimal designs of variable sample size control chart for monitoring the multivariate coefficient of variation in short production runs

YY Chew, MBC Khoo, KW Khaw, MH Lee… - … in Statistics-Simulation …, 2023 - Taylor & Francis
Short production runs are common in industries that require high flexibility and variety in
manufacturing. Only a limited amount of researches on multivariate control charts in short …

Optimal design of S2‐EWMA control chart for short production runs

KH Ong, SY Teh, S Saha, MBC Khoo… - Quality and Reliability …, 2023 - Wiley Online Library
In recent fast pace smart manufacturing environment, the short production runs (SPR)
control charts offer a higher degree of flexibility compared to the traditional control charts …

[引用][C] The auxiliary information-based double EWMA control chart for the process means in short production runs

SY Goh - 2023 - UTAR