Open Access
Issue
ND 2007
2007
Article Number 074
Number of page(s) 4
Section Evaluation of covariance matrices
DOI http://dx.doi.org/10.1051/ndata:07163
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07163

Criteria of the validation of experimental and evaluated covariance data

S. Badikov

Central Research Institute of Management, Economics and Information (Atominform), 127434 Moscow, Russia

badikov@ainf.ru

Published online: 21 May 2008

Abstract
Criteria of the validation of experimental and evaluated covariance data are reviewed. In particular: a) criterion of the positive definiteness for covariance matrices, b) relationship between the "integral" experimental and estimated uncertainties, c) validity of the statistical invariants, d) restrictions imposed to correlations between experimental errors, are described. The examples of applying these criteria in practice are presented.



© CEA 2008