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Author: chih-ming wang

Displaying records 21 to 30 of 68 records.
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21. 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

22. Fiducial Intervals for the Magnitude of a Complex-Valued Quantity
Published: 12/19/2008
Authors: Chih-Ming Wang, Hariharan K Iyer
Abstract: This paper discusses a fiducial approach for constructing uncertainty intervals for the distance between k normal means and the origin. When k=2 this distance is equivalent to the magnitude of a complex-valued quantity. Uncertainty intervals for the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=890046

23. A robust algorithm for eye-diagram analysis
Published: 11/1/2008
Authors: Jeffrey A Jargon, Paul D Hale, Chih-Ming Wang
Abstract: We present a new method for analyzing eye diagrams that always provides a unique solution by making use of a robust, least-median-of-squares (LMS) location estimator. In contrast to commonly used histogram techniques, the LMS procedure is insensit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32775

24. Charpy Machine Verification: Limits and Uncertainty
Series: Special Publication (NIST SP)
Published: 9/1/2008
Authors: Jolene D Splett, Christopher N McCowan, Chih-Ming Wang
Abstract: The purpose of this document is to clarify some issues pertaining to uncertainty statements and the ASTM E 23 limits used in the Charpy machine verification program. We explain some of the distributional subtleties associated with uncertainty and ult ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50573

25. Fiducial approach for assessing agreement between two instruments
Published: 7/9/2008
Authors: Chih-Ming Wang, Hariharan K Iyer
Abstract: This paper presents an approach for making inferences about the intercept and the slope of a linear regression model with both variables subject to measurement errors. The approach is based on the principle of fiducial inference. A procedure is prese ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150665

26. NIST Recommended Practice Guide: Computing Uncertainty for Charpy Impact Machine Test Results
Series: Special Publication (NIST SP)
Published: 9/1/2007
Authors: Jolene D Splett, Christopher N McCowan, Hariharan K Iyer, Chih-Ming Wang
Abstract: The purpose of this recommended practice guide is to demonstrate how to determine the uncertainty associated with mean absorbed energy of specimens tested on a Charpy impact machine. We assume that the Charpy machine has successfully met the requirem ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150515

27. Fiducial Approach to Uncertainty Assessment Accounting for Error due to Instrument Resolution
Published: 1/1/2007
Authors: Jan Hannig, Hariharan K Iyer, Chih-Ming Wang
Abstract: This paper presents an approach for making inference on the mean and variance of a Gaussian distribution in the presence of resolution errors. The approach is based on the principle of fiducial inference and requires a Monte Carlo method for computin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150557

28. A Generalized Confidence Interval for a Measurand in the Presence of type-A and type-B Uncertainties
Published: 4/11/2006
Authors: Chih-Ming Wang, Hariharan K Iyer
Abstract: We consider the problem of estimating a measurand based on a sequence of measurements. Each measurement has both type-A and type-B errors. The measurements may have been obtained from a single experiment or several separate experiments. We investigat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150260

29. Uncertainty Analysis for Vector Measurands Using Fiducial Inference
Published: 1/1/2006
Authors: Chih-Ming Wang, Hariharan K Iyer
Abstract: This paper presents a method for constructing uncertainty regions for a vector measurand in the presence of both type-A and type-B errors. The method is based on the principle of fiducial inference and generally requires a Monte Carlo approach for co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150367

30. Uncertainty in Reference Values for the Charpy V-notch Verification Program
Published: 5/1/2005
Authors: Jolene D Splett, Chih-Ming Wang
Abstract: We present a method for computing the combined standard uncertainty for reference values used in the Charpy machine verification program administered by the National Institute of Standards and Technology. The technique is compliant with the ISO GUM ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50807



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