Conveners
Process 1
- Chair: András Zempléni (Eötvös Loránd University, Budapest)
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Sven Knoth (Helmut Schmidt University Hamburg, Germany)14/09/2021, 12:00Process
For the last twenty years, a plethora of new ``memory-type'' control charts have been proposed. They share some common features: (i) deceptively good zero-state average run-length (ARL) performance, but poor steady-state performance, (ii) design, deployment and analysis significantly more complicated than for established charts, (iii) comparisons made to unnecessarily weak competitors, and...
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Maria Anastasopoulou14/09/2021, 12:20Process
In this work, we develop and study upper and lower one-sided CUSUM control charts for monitoring correlated counts with finite range. Often in practice, data of that kind can be adequately described by a first-order binomial integer-valued ARCH model (or BINARCH(1)). The proposed charts are based on the likelihood ratio and can be used for detecting upward or downward shifts in process mean...
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Konstantinos Bourazas (Athens University of Economics and Business)14/09/2021, 12:40Process
In Statistical Process Control/Monitoring (SPC/M) our interest is in detecting when a process deteriorates from its “in control” state, typically established after a long phase I exercise. Detecting shifts in short horizon data of a process with unknown parameters, (i.e. without a phase I calibration) is quite challenging.
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In this work, we propose a self-starting Bayesian change point...