منابع مشابه
Double sampling hotelling's T2 charts
Two double sampling T 2 charts are discussed. They only differ in how the second sample is used to suggest to the practitioner the state of the process. An optimal method using a genetic algorithm is given for designing these charts based on the average run length of the (ARL). An analytical method is used to determine run length performance of the chart. Comparisons are made with various other...
متن کاملBias and Unbias Comparison between Economic Statistical Design T2-VSI and T2-FRS Control Charts
The Hotelling's control chart, is the most widely used multivariate procedure for monitoring two or more related quality characteristics, but it’s power lacks the desired performance in detecting small to moderate shifts. Recently, the variable sampling intervals (VSI) control scheme in which the length of successive sampling intervals is determined upon the preceding values has been proved t...
متن کاملBootstrap-Based T2 Multivariate Control Charts
Control charts have been used effectively for years to monitor processes and detect abnormal behaviors. However, most control charts require a specific distribution to establish their control limits. The bootstrap method is a nonparametric technique that does not rely on the assumption of a parametric distribution of the observed data. Although the bootstrap technique has been used to develop u...
متن کاملNote on 'Construction of Double Sampling s-Control Charts for Agile Manufacturing'
Double sampling (DS) X-control charts are designed to allow quick detection of a small shift of process mean and provides a quick response in an agile manufacturing environment. However, the DS X-control charts assume that the process standard deviation remains unchanged throughout the entire course of the statistical process control. Therefore, a complementary DS chart that can be used to moni...
متن کاملbias and unbias comparison between economic statistical design t2-vsi and t2-frs control charts
the hotelling's control chart, is the most widely used multivariate procedure for monitoring two or more related quality characteristics, but it’s power lacks the desired performance in detecting small to moderate shifts. recently, the variable sampling intervals (vsi) control scheme in which the length of successive sampling intervals is determined upon the preceding values has been pro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Quality and Reliability Engineering International
سال: 2008
ISSN: 0748-8017,1099-1638
DOI: 10.1002/qre.872