S. Ferson

Publications
Influence

Combination of Evidence in Dempster-Shafer Theory

K. Sentz, S. Ferson
Computer Science
1 April 2002

Dempster-Shafer theory offers an alternative to traditional probabilistic theory for the mathematical representation of uncertainty. Expand

Constructing Probability Boxes and Dempster-Shafer Structures

S. Ferson, Vladik Kreinovick, Lev R. Ginzburg, Fari Sentz
Computer Science
2003

This report summarizes a variety of the most useful and commonly applied methods for obtaining Dempster-Shafer structures, and their mathematical kin probability boxes, from empirical information or theoretical knowledge. Expand

Risk assessment in conservation biology

A framework for risk assessment. A probabilistic framework. Causes of Extinction. Summary. White rhinoceros on Ndumu. Formulating a birth-and death model. Parameters and initial condition. The… Expand

Different methods are needed to propagate ignorance and variability

S. Ferson, L. Ginzburg
Mathematics
1 November 1996

There are two kinds of uncertainty. One kind arises as variability resulting from heterogeneity or stochasticity. The other arises as partial ignorance resulting from systematic measurement error or… Expand

Challenge problems: uncertainty in system response given uncertain parameters

W. Oberkampf, J. C. Helton, C. Joslyn, S. Wojtkiewicz, S. Ferson
Mathematics, Computer Science
Reliab. Eng. Syst. Saf.
1 July 2004

Abstract The risk assessment community has begun to make a clear distinction between aleatory and epistemic uncertainty in theory and in practice. Expand

Model validation and predictive capability for the thermal challenge problem

S. Ferson, W. Oberkampf, L. Ginzburg
Mathematics
1 May 2008

We address the thermal problem posed at the Sandia Validation Challenge Workshop. Unlike traditional approaches that confound calibration with validation and prediction, our approach strictly… Expand

Making Consistent IUCN Classifications under Uncertainty

H. R. Akçakaya, S. Ferson, M. Burgman, D. Keith, G. Mace, C. Todd
15 August 2000

Abstract: The World Conservation Union (IUCN) defined a set of categories for conservation status supported by decision rules based on thresholds of parameters such as distributional range,… Expand

Experimental uncertainty estimation and statistics for data having interval uncertainty.

V. Kreinovich, W. Oberkampf, L. Ginzburg, S. Ferson, J. Hajagos
Mathematics
1 May 2007

This report addresses the characterization of measurements that include epistemic uncertainties in the form of intervals. It reviews the application of basic descriptive statistics to data sets which… Expand

M.-J. Fortin, R. Olson, +6 authors V. Klemas
Computer Science
Landscape Ecology
1 July 2000

Ecotones are inherent features of landscapes, transitional zones, and play more than one functional role in ecosystem dynamics. Expand

Measuring shape variation of two-dimensional outlines

S. Ferson, F. Rohlf, R. Koehn
Biology
1 March 1985

-An image-analytic technique that automatically determines the outlines for simple silhouettes is described. These outlines are numerically characterized using elliptic Fourier decomposition. Since… Expand

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