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Sequential probability ratio tests when using randomized play-the-winner allocation
(University of Gothenburg, 1997-01-01)
In many clinical experiments there is a conflict between ethical demands to provide the best possible medical care for the patients and the statisticians desire to obtain an efficient experiment. Play-the-winner allocations ...
Monitoring a Freshwater Fishpopulation: Statistical Surveillance of Biodiversity
(University of Gothenburg, 1997-02-01)
Statistical surveillance are methods for repeated analysis of stochastic processes, aiming to detect a change in the underlying distribution. Such methods are widely used for industrial, medical, economical and other ...
A stepwise regression procedure applied to an international production study - a multiple inference solution
(University of Gothenburg, 1997-04-01)
The aim of this paper is to apply a certain procedure for stepwise regression analysis to a problem included in a study of integrated international production. The question, which factors are important for the transnational ...
From Workflow to Conversation
(1997)
This thesis is about designing information technology to support communicative work. The thesis has a theoretical focus, informed by two empirical studies, but the aim is not to formulate a grand theory, but rather to find ...
Screening-related prevalence and incidence for non-recurrent diseases
(University of Gothenburg, 1997-02-01)
Expressions for prevalence (P) and incidence (I) in open dynamic populations are derived. When screenings are performed every s:th year, P and I will be functions of s. It is shown how the true values of P and l, which ...
Networking
(1997)
The thesis is a collection of five papers that approach networking from the perspective of “the New Informatics.” Networking is a kind of working practice that typically is concerned with knowledge or service work, carried ...