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Topic Area: Math
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Displaying records 121 to 130 of 234 records.
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121. Bayesian Posterior Predictive p-value of Statistical Consistency in Interlaboratory Evaluations
Topic: Math
Published: 9/17/2008
Authors: Raghu N Kacker, Alistair Forbes, Ruediger Kessel, K D Sommer
Abstract: Results from an interlaboratory evaluation are said to be statistically consistent if they fit a normal (Gaussian) consistency model which postulates that the results have the same unknown expected value and stated variances and covariances. We prop ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150672

122. Comparison of statistical consistency and metrological consistency
Topic: Math
Published: 9/6/2008
Authors: Raghu N Kacker, Ruediger Kessel, Klaus-Dieter Sommer, Xin Bian
Abstract: The conventional concept of consistency in multiple evaluations of the same measurand is based on statistical error analysis. This concept is based on regarding the evaluations as realizations from sampling probability distributions of potential eva ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902861

123. Refining the In-Parameter-Order Strategy for Constructing Covering Arrrays
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 9/1/2008
Authors: Michael Forbes, James F Lawrence, Yu Lei, Raghu N Kacker, David R Kuhn
Abstract: Covering arrays are structures for well-representing extremely large input spaces and are used to efficiently implement blackbox testing for software and hardware. This paper proposes refinements over the In-Parameter-Order strategy (for arbitrary $t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=152141

124. Grain Size Distribution in Two Dimensions in the Long Time Limit
Topic: Math
Published: 7/8/2008
Authors: Geoffrey B McFadden, C.S. Pande, K.P. Cooper
Abstract: It is shown that the inclusion of a "noise" term in the growth rate of individual grains leads to a stochastic model that provides a more realistic description of grain growth phenomenon. The resulting Fokker-Planck equation for the grain s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=152126

125. Tight Bounds for the Multiplicative Complexity of Symmetric Functions
Topic: Math
Published: 4/28/2008
Authors: Joan Boyar, Rene C Peralta
Abstract: The multiplicative complexity of a Boolean function f is defined as the minimum number of binary conjunction (AND) gates required to construct a circuit representing f , when only exclusive-or, conjunction and negation gates may be used. This article ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51208

126. Classical and Bayesian Interpretation of the Birge Test of Consistency and Its Generalized Version in Interlaboratory Evaluations
Topic: Math
Published: 4/10/2008
Authors: Raghu N Kacker, Alistair Forbes, Ruediger Kessel, K D Sommer
Abstract: The results from an interlaboratory evaluation are said to be consistent if their dispersion is not more than what can reasonably be attributed to their stated variances. A well known test of consistency in interlaboratory evaluations is the Birge te ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51220

127. Calibrating Image Roughness by Estimating Lipschitz Exponents, with Applications to Image Restoration
Topic: Math
Published: 3/3/2008
Author: Alfred S Carasso
Abstract: Most commonly occurring images f(x,y) are not smoothly differentiable functions of the variables x and y. Rather, these images display edges, localized sharp features, and other significant fine scale details or texture. Correct characterization and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51213

128. Precession Axis Modification to a Semi-analytical Landau-Lifshitz Solution Technique
Topic: Math
Published: 2/25/2008
Authors: Donald G Porter, Michael J Donahue
Abstract: A recent article [1] presents a semianalytical method to solve the Landau Lifshitz (LL) equation. Spin motion is computed analytically as precession about the effective field H, where H is assumed fixed over the time step. However, the exchange field ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=152140

129. IPOG/IPOG-D: Efficient Test Generation for Multi-way Combinatorial Testing
Topic: Math
Published: 11/29/2007
Authors: Yu Lei, Raghu N Kacker, David R Kuhn, Vadim Okun, James F Lawrence
Abstract: We present two strategies for multi-way testing (i.e., t-way testing with t > 2). The first strategy generalizes an existing strategy, called In-Parameter-Order, from pairwise testing to multi-way testing. This strategy requires all t-way combination ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50964

130. Evolution of Modern Approaches to Express Uncertainty in Measurement
Topic: Math
Published: 11/27/2007
Authors: Raghu N Kacker, K D Sommer, Bernd Siebert
Abstract: The object of this paper is to discuss evolution of the concept of uncertainty in measurement and methods for its quantification from the classical error analysis to the modern approaches based on the Guide to the Expression of Uncertainty in Measure ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51120



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