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You searched on: Author: andrew rukhin

Displaying records 11 to 20 of 49 records.
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11. Evaluation of Self Diffusion Data Using Weighted Means Statistics
Published: 6/1/2011
Authors: Carelyn E Campbell, Andrew L Rukhin
Abstract: Several CALPHAD-based assessments of the self-diffusion mobility of Ni in pure Ni and Al in pure Al have been published. In an effort to determine which assessment best represents the experimental data, weighted means statistics are used to determin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906904

12. Estimating Common Parameters in Heterogeneous Random Effects Models
Published: 4/13/2011
Author: Andrew L Rukhin
Abstract: A question of fundamental importance for meta-analysis of heterogeneous data studies is how to form a best consensus estimator of common parameters, and what uncertainty to attach to the estimate. This issue is addressed for a class of unbalanced lin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904659

13. Maximum Likelihood and Restricted Likelihood Solutions in Multiple-Method Studies
Series: Journal of Research (NIST JRES)
Published: 1/31/2011
Author: Andrew L Rukhin
Abstract: A formulation of the problem of combining data from several sources is discussed in terms of random effects models. The unknown measurement precision is not supposed to be constant among laboratories whose summary results may seem not to conform to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906278

14. A chapter ``Statistical Testing of Randomness: New and Old Procedures '' Statistical Engineering Division is a contribution to the book "Randomness: Five Questions"
Published: 1/11/2011
Author: Andrew L Rukhin
Abstract: Several procedures designed to test randomness of binary sequences are reviewed. Necessary modifications to the existing document ``A statistical test suite for the validation of cryptographic random number generators'', Special NIS ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903151

15. Limit of detection determination for censored samples.
Published: 1/11/2011
Authors: Andrew L Rukhin, Daniel Victor Samarov
Abstract: The problem of setting the limit of detection is considered for censored samples and heterogeneous errors. After formal definitions of the critical level and of the method detection limit, we introduce simplified maximum likelihood-type estimators ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906715

16. Reducing Data Nonconformity in Linear Models
Published: 1/3/2011
Author: Andrew L Rukhin
Abstract: Stein phenomenon Summary Several procedures designed to reduce nonconformity in interlaboratory studies by shrinking data toward a consensus matrix weighted mean are suggested. Some of them are shown to have a smaller quadratic risk than the vector s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905278

17. Laplace Random Effects Models for Interlaboratory Studies
Published: 11/25/2010
Authors: Andrew L Rukhin, Antonio M Possolo
Abstract: A model is introduced for measurements obtained in collaborative interlaboratory studies, comprising measurement errors and random laboratory effects that have Laplace distributions, possibly with heterogeneous, laboratory-specific variances. Estima ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903611

18. A Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications
Series: Special Publication (NIST SP)
Report Number: 800-22 Rev 1a
Published: 9/16/2010
Authors: Lawrence E Bassham, Andrew L Rukhin, Juan Soto, James R Nechvatal, Miles E. Smid, Stefan D Leigh, M Levenson, M Vangel, Nathanael A Heckert, D L. Banks
Abstract: This paper discusses some aspects of selecting and testing random and pseudorandom number generators. The outputs of such generators may be used in many cryptographic applications, such as the generation of key material. Generators suitable for use i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906762

19. Confidence Regions for Parameters of Linear Models
Published: 4/1/2010
Author: Andrew L Rukhin
Abstract: A method is suggested for constructing a conservative confidence region for the parameters of a general linear model. In meta-analytical applications, when the results of independent but heterogeneous studies are to be combined, this region can be em ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=152120

20. Joint Distribution of Pattern Frequencies and Multivariate Polya-Aeppli Law
Published: 1/14/2010
Author: Andrew L Rukhin
Abstract: This paper studies the joint distribution of frequencies of several overlapping words in a Markov sequence. Usually, characteristics of this distribution are expressed in terms of so-called pattern correlation matrix. A more direct approach allows fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50909



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