Abstract
The hybrid use of Robert’s EWMA and Crosier’s cumulative sum (CUSUM) control schemes is shown to result in a control scheme with high-performance detection of any magnitude of process mean shifts. The parameters of the hybrid scheme are found by adapting the average run length (ARL) to those of a set of locally optimal EWMA schemes in the best way. In this report, an enhancement to the hybrid scheme is considered. First, the ARLs of the hybrid scheme are derived by using the extrapolation method proposed by Waldmann. Second, an optimization of parameter settings is stated and solved. An extensive comparison shows that the ARL properties of the hybrid scheme are comparable to those of the combined Shewhart-CUSUM scheme. Finally, numerical results and examples are presented to demonstrate the efficiency of the hybrid scheme.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The International Journal of Advanced Manufacturing Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
