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A procedure is proposed for examining different aspects of performance for judgemental directional probability … the existing accuracy measures, enabling detailed comparisons of probability forecasts with ex-post empirical … directional probability exchange rate forecasts for the US Dollar/Swiss Franc from 23/7/96 to 7/12/99 and the findings are …
Persistent link: https://www.econbiz.de/10009435350
models over three time horizons on a task involving probabilistic forecasts of exchange rate movements. Probability …
Persistent link: https://www.econbiz.de/10009435351
then uses an event tree to develop a set of compromise paths. Probability models are developed for each of the compromise … paths that user parameters based on expert judgment or historical data on security violations. The resulting probability …. Application of the methodology is demonstrated using a national security example. A set of compromise paths and probability models …
Persistent link: https://www.econbiz.de/10009435395
Environmental radiological assessments rely heavily on the use of mathematical models. The predictions of these models are inherently uncertain because these models are inexact representations of real systems. The major sources of this uncertainty are related to biases in model formulation and...
Persistent link: https://www.econbiz.de/10009435418
A previous report explored and discussed statistical methods and procedures that may be applied to validate the survivability of a complex system of systems that cannot be tested as an entity. It described a methodology where Monte Carlo simulation was used to develop the system survivability...
Persistent link: https://www.econbiz.de/10009435451
The increasing use of results from probabilistic risk assessments in the decision-making process makes it ever more important to eliminate simplifications in probabilistic models that might lead to conservative results. One area in which conservative simplifications are often made is modeling...
Persistent link: https://www.econbiz.de/10009435480
This document, written for the US Department of Energy, discusses current information and the need for future research on estimating the impacts on wages and property values that could result from people's perceptions of the risks associated with noxious facilities. Psychometric studies indicate...
Persistent link: https://www.econbiz.de/10009435650
probability, with confidence interval, of the time that a prescribed degradation level is exceeded is shown to be practical, as … demonstrated in the analysis of irradiated fuel cladding. The methodology for the estimation of the probability is predicated on …
Persistent link: https://www.econbiz.de/10009435687
Concentrations of environmental pollutants tend to follow positively skewed frequency distributions. Two such density functions are the gamma and lognormal. Minimum variance unbiased estimators of the expected value for both densities are available. The small sample statistical properties of...
Persistent link: https://www.econbiz.de/10009435692
and prediction uncertainty with different probability structures. Several examples are presented utilizing this metric. We …
Persistent link: https://www.econbiz.de/10009435763