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Evaluations of likelihood ratio methods for surveillance
(University of Gothenburg, 1996-03-01)
Methods based on likelihood ratios are known to have several optimality properties. When control charts are used in practice, knowledge about several characteristics of the method is important for the judgement of which ...
SEQUENTIAL ANALYSIS OF SIMPLE HYPOTHESES WHEN USING PLAY-THE-WINNER ALLOCATION
(University of Gothenburg, 1996-01-01)
Play-the-winner allocations aim to place more subjects on the better treatment. The subjects enter the study sequentially. In this paper, a method for analyzing a dichotomous response, when using the randomized play-the-winner ...
Evaluation of univariate surveillance procedures for some multivariate problems
(University of Gothenburg, 1996-04-01)
The continual surveillance to detect changes has so far received large attention in the area of industrial quality control, where the monitoring of manufacturing processes to detect decreases in quality play an important ...
Outlying observations and their influence on maximum pseudo-likelihood estimates of Gibbs point processes
(University of Gothenburg, 1996-05-01)
Maximum pseudo-likelihood estimation method is an attractive method to estimate interaction parameters of Gibbs point processes. A drawback of the method is that it tends to overestimate interaction if there is strong ...
Some principles for surveillance adopted for multivariate processes with a common change point
(University of Gothenburg, 1996-02-01)
The surveillance of multivariate processes has received growing attention during the last decade. Several generalizations of well-known methods such as Shew hart , CUSUM and EWMA charts have been proposed. Many of these ...