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Topic Area: Math

Displaying records 141 to 150 of 232 records.
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141. Pseudo-Exhaustive Testing for Software
Topic: Math
Published: 4/28/2006
Authors: David R Kuhn, Vadim Okun
Abstract: Pseudo-exhaustive testing uses the empirical observation that, for broad classes of software, a fault is likely triggered by only a few variables interacting. The method takes advantage of two relatively recent advances in software engineering: algor ...

142. Front Matter for Special Issue of NIST Journal of Research in honor of Christoph Witzgall
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 3/31/2006
Authors: David E. Gilsinn, Ronald F Boisvert
Abstract: This front matter for a special issue of the NIST Journal of Research contains a photograph and biography of Christoph Witzgall. It also contains a thank you paragraph by Christoph Witzgall for a symposium held in his honor. Many of the papers in thi ...

143. Bayesian Alternative to the Guide's Use of the Welch-Satterthwaite Formula
Topic: Math
Published: 1/3/2006
Author: Raghu N Kacker
Abstract: The Guide to the Expression of Uncertainty in Measurement suggests that to account for the statistical uncertainty in a combined standard uncertainty that arises when one or more of its components are evaluated from a limited number of independent no ...

144. Discrete Fourier Series Approximation to Periodic Solutions of Autonomous Delay Differential Equations
Topic: Math
Published: 1/2/2006
Author: David E. Gilsinn
Abstract: We begin this expository essay by reviewing with examples what a typical engineer already knows about statistics. We then consider a central question in engineering decision making, i.e., given a computer simulation of high-consequence systems, how ...

145. Coefficient of Contribution to the Combined Standard Uncertainty
Topic: Math
Published: 1/1/2006
Authors: Raghu N Kacker, Rudiger Kessel, Michael Berglund
Abstract: The International Organization for Standardization (ISO) Guide to the Expression of Uncertainty in Measurement (GUM) describes a generic procedure for determining an estimate for the measurand and its associated combined standard uncertainty from the ...

146. Comparison of ISO-GUM, draft GUM Supplement 1, and Bayesian statistics using simple linear calibration
Topic: Math
Published: 1/1/2006
Authors: Raghu N Kacker, Blaza Toman, Ding Huang
Abstract: We compare three approaches for quantifying uncertainty using a measurement equation: the International Organization for Standardization (ISO) Guide to the Expression of Uncertainty in Measurement (GUM), draft GUM Supplement 1, and Bayesian statistic ...

147. Simpler Bayesian Alternative to the ISO Guides Use of the Welch-Satterthwaite Formula
Topic: Math
Published: 1/1/2006
Author: Raghu N Kacker
Abstract: The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A pre ...

148. Construction Object Identification from LADAR Scans: An Experimental Study Using I-Beams
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7286
Topic: Math
Published: 12/15/2005
Authors: David E. Gilsinn, Geraldine S Cheok, Christoph Johann Witzgall, Alan M. (Alan M.) Lytle
Abstract: Laser Scanning devices (LADAR for Laser Detection and Ranging) are used in construction projects to capture as-built data. They can rapidly generate large unstructured point clouds. This study describes an experiment in which an I-beam on a concrete ...

149. The DLMF Project: Lessons Learned and Future Directions
Topic: Math
Published: 10/1/2005
Author: Daniel W Lozier

150. The Fast Fourier Transform for Experimentalists Part III: Classical Spectral Estimates
Topic: Math
Published: 10/1/2005
Authors: D Donnelly, Bert W Rust
Abstract: The discrete Fourier transform (DFT) is a widely used tool for the analysis of measured time series data. The Cooley-Tukey fast Fourier transform (FFT) algorithm gives an extremely fast and efficient implementation of the DFT. This is the first of ...

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