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You searched on: Author: blaza toman

Displaying records 11 to 20 of 39 records.
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11. Quantifying Model Error
Published: 2/11/2011
Authors: Kevin B McGrattan, Blaza Toman
Abstract: A methodology is proposed for reporting the results of fire model validation studies that consist mainly of comparisons of model predictions and experimental measurements. The difference between the two is a combination of model error and experimen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904174

12. Analysis of key comparisons: Estimating laboratories‰ biases by a fixed effects model using Bayesian Model Averaging
Published: 3/11/2010
Authors: Blaza Toman, Clemens Elster
Abstract: We propose a novel procedure for the analysis of key comparison data. The goal of the procedure is to detect biases in the reported measurement results which are not accounted for by quoted uncertainties. A fixed effects bias model is employed which ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903928

13. Laboratory Effects Models for Interlaboratory Comparisons
Published: 6/16/2009
Authors: Blaza Toman, Antonio M Possolo
Abstract: Statistical analysis of inter-laboratory comparisons (e.g. Key Comparisons, Supplemental Comparisons) is required to produce an estimate of the measurand called a reference value and further, measures of equivalence of the participating laboratories. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901548

14. Bayesian uncertainty analysis under prior ignorance of the measurand vs. analysis using the Supplement to the Guide: A comparison
Published: 2/17/2009
Authors: Blaza Toman, Clemens Elster
Abstract: A recent supplement to the GUM (GUM S1) is compared with a Bayesian analysis in terms of a particular task of data analysis, one where no prior knowledge of the measurand is presumed. For the Bayesian analysis, an improper prior density on the measur ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900233

15. Three Statistical Paradigms for The Assessment and Interpretation of Measurement Uncertainty
Published: 1/12/2009
Authors: William F Guthrie, Hung-Kung Liu, Andrew L Rukhin, Blaza Toman, Chih-Ming Wang, Nien F Zhang
Abstract: The goals of this chapter are to present different approaches to uncertainty assessment from a statistical point of view and to relate them to the methods that are currently being used in metrology or are being developed within the metrology communit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51273

16. Calibration and Uncertainty Analysis of Predictions from Computational Models
Published: 8/18/2008
Author: Blaza Toman
Abstract: Computer experiments, that is, experiments performed using a mathematical model of a physical or chemical process implemented using a computer simulation are especially useful when extensive physical experimentation is either impossible or too expens ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=152145

17. Model Based Uncertainty Analysis in Inter-Laboratory Studies
Published: 6/23/2008
Authors: Blaza Toman, Antonio M Possolo
Abstract: Statistical analysis of key comparison and inter-laboratory experiments is required to produce an estimate of the measurand called a reference value and further, measures of equivalence of the participating laboratories. Methods of estimation of the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900232

18. Uncertainty Due to Finite Resolution Measurements
Published: 5/1/2008
Authors: Steven David Phillips, Blaza Toman, William Tyler Estler
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912361

19. Assessment of measurement uncertainty via observation equations
Published: 12/3/2007
Authors: Antonio M Possolo, Blaza Toman
Abstract: According to the Guide to the Expression of Uncertainty in Measurement, measurement uncertainty is assessed by computational propagation of error based on a measurement equation that expresses the measurand as a known function of input variables. How ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51223

20. Statistics in Metrology: International Key Comparisons and Interlaboratory Studies
Published: 7/10/2007
Authors: N Sedransk, Andrew L Rukhin, Blaza Toman
Abstract: An approach to the analysis of key comparisons data is proposed using a model taken from meta-analysis metrology. Under the assumption of Gaussian distributions and equivalent qualification of all participating laboratories the analysis of data fro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151794



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