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- Thomas Fetz, Michael Oberguggenberger
- Rel. Eng. & Sys. Safety
- 2004

- Thomas Fetz
- ISIPTA
- 2001

This paper is devoted to the construction of sets of joint probability measures for the case that the marginal sets of probability measures are generated by weighted focal sets. Different conditions on the choice of the weights of the joint focal sets and on the probability measures on these sets lead to different types of independence such as strong… (More)

- Thomas Fetz, Michael Oberguggenberger, Simon Pittschmann
- ISIPTA
- 1999

- Thomas Fetz
- Int. J. Approx. Reasoning
- 2012

- Thomas Fetz
- International Journal of Uncertainty, Fuzziness…
- 2011

This article is devoted to the propagation of families of variability intervals through multivariate functions comprising the semantics of confidence limits. At fixed confidence level, local random sets are defined whose aggregation admits the calculation of upper probabilities of events. In the multivariate case, a number of ways of combination is… (More)

- Thomas Fetz, Michael Oberguggenberger
- Int. J. Approx. Reasoning
- 2016

The paper addresses the evaluation of upper and lower probabilities induced by functions of an imprecise random variable. Given a function g and a family Xλ of random variables, where the parameter λ ranges in an index set Λ, one may ask for the upper/lower probability that g(Xλ ) belongs to some Borel set B. Two interpretations are investigated. In the… (More)

- Thomas Fetz, Mi hael Oberguggenberger
- 1999

- Thomas Fetz
- 2007

This paper is devoted to the construction of sets of joint probability measures for the case that the marginal sets of probability measures are generated by probability measures with uncertain parameters where the uncertainty of these parameters is modelled by random sets. Further we show how different conditions on the choice of the weights of the joint… (More)

A traditional procedure for performance evaluation of systems is to test approaches on one or more case studies. However, it is well known that the investigation of real case studies is a tedious task. Moreover, due to the limited amount of case studies available it is not certain that all aspects of a problem can be covered in such procedure. With… (More)

- Frank P. A. Coolen, Thomas Fetz, Serafín Moral, Michael Oberguggenberger
- Int. J. Approx. Reasoning
- 2012

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