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You searched on: Topic Area: Math

Displaying records 81 to 90 of 105 records.
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81. Constructing Sequence Alignments from a Markov Decision Model with Estimated Parameter Values
Topic: Math
Published: 1/1/2004
Authors: Fern Y Hunt, Anthony J Kearsley, Agnes A. O'Gallagher
Abstract: Current methods for aligning biological sequences are based on dynamic programming algorithms. If large numbers of sequences or a number of long ones are to be aligned the required computations are expensive in memory and CPU time. In an attempt to b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51308

82. Statistical Interpretation of Key Comparison Reference Value and Degrees of Equivalence
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 11/1/2003
Authors: Raghu N Kacker, Raju Vsnu Datla, Albert C Parr
Abstract: This paper responds to comments received by the authors on the paper, Combined Result and Associated Uncertainty from Interlaboratory Evaluations Based on the ISO Guide that appeared in Metrologia, 2002, 39, 279-293.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150873

83. Deconvolving LADAR Images Of Bar Codes for Construction Site Object Recognition
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7044
Topic: Math
Published: 10/1/2003
Authors: David E. Gilsinn, Geraldine S Cheok, Dianne M O'Leary
Abstract: This report discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADAR optics. The first part of this report describes the experimental data collection of several bar code images along ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50685

84. An Optimization Approach to Multiple Sequence Alignment
Topic: Math
Published: 7/1/2003
Authors: Fern Y Hunt, Anthony J Kearsley, H H Wan
Abstract: The problem of multiple sequence alignment is recast as an optimization problem using Markov decision theory. One seeks to minimize the expected or average cost of alignment subject to data-derived constraints. In this setting the problem is equiva ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150843

85. NIST Digital Library of Mathematical Functions
Topic: Math
Published: 5/1/2003
Author: Daniel W Lozier
Abstract: NIST (formerly, National Bureau of Standards) has started an ambitious project that aims to produce a successor to Abramowitz and Stegun's {\em Handbook of Mathematical Functions}, published by the National Bureau of Standards in 1964 and reprinted b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150849

86. A Linear Programming Based Algorithm for Multiple Sequence Alignments
Topic: Math
Published: 2/17/2003
Authors: Fern Y Hunt, Agnes A. O'Gallagher, Anthony J Kearsley
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50690

87. Algorithms and Codes for the Macdonald Function: Recent Progress and Comparisons
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6596
Topic: Math
Published: 2/1/2003
Authors: B R Fabijonas, Daniel W Lozier, J M Rappoport
Abstract: The modified Bessel function K^di{nu}^{chi}, also known as the Macdonald function, finds application in the Kontorovich-Lebedev integral transform when {chi} and {nu} are real and positive. In this paper, a comparison of three codes for computing th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50682

88. Reconstructing Images of Bar Codes for Construction Site Object Recognition
Topic: Math
Published: 9/1/2002
Authors: David E. Gilsinn, Geraldine S Cheok, Dianne M O'Leary
Abstract: This paper discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADARoptics. The first part of this paper describes the experimental data collection of several bar code images along w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150859

89. Comparative Statistical Analysis of Test Parts Manufactured in Production Environments
Report Number: 6868
Topic: Math
Published: 6/1/2002
Authors: David E. Gilsinn, Alice V. Ling
Abstract: Estimating error uncertainties arising in parts produced on machine tools in production machine shops is not a well understood process. The current study details a process of estimating these error uncertainties. A part with significant features was ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150852

90. Estimating Critical Hopf Bifurcation Parameters for a Second Order DelayDifferential Equation with Application to Machine Tool Chatter
Topic: Math
Published: 5/1/2002
Author: David E. Gilsinn
Abstract: Nonlinear time delay differential equations are well known to have arisen in models in physiology, biology and population dynamics. They have also arisen in models of metal cutting processes. Machine tool chatter, from a process called regenerative c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150815



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