Preprint #97-1



A Bayesian On-Line Change Detection Algorithm With Process Monitoring Applications

by

Pradipta Sarkar and William Q. Meeker


Abstract

This paper presents a Bayesian on-line change detection algorithm for the cases when there are multiple jumps and when there is a trend in the process output parameter. A decision theory based method has been formulated to determine the optimum inspection interval for process control applications. The development of the methods was motivated by questions arising from a casting process. The methods are illustrated in an example.


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