Results 241 to 250 of about 3,892,702 (296)

Error Ratio Analysis

Diagnostique, 1997
Special and general educators have frequently felt either untrained or bound by time constraints in using existing techniques of informal assessment. We present a description and demonstration of the use of error ratio analysis, a simple technique for assessing mathematics performance.
James H. Miller, Sonya C. Carr
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Error propagation in calculated ratios

Clinical Biochemistry, 2007
Calculated quantities that combine results of multiple laboratory tests have become popular for screening, risk evaluation, and ongoing care in medicine. Many of these are ratios. In this paper, we address the specific issue of propagated random analytical error in calculated ratios.Standard error propagation theory is applied to develop an approximate
Daniel T, Holmes, Kevin A, Buhr
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Errors on ratios of small numbers

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1987
Abstract Errors on ratios are discussed in the case of binomial and Poisson distributions; tables giving the upper and lower limits of the confidence region for a confidence level of 68.3% are provided for small numbers.
A. De Angelis, M. Iori
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The Variance Ratio Test with Stable Paretian Errors

Journal of Time Series Analysis, 2002
This paper examines the distribution of the overlapping variance ratio (OVR) statistic when the errors are distributed with thick tails as described by the family of stable Paretian distributions. The asymptotic distribution of the OVR statistic, which depends on the characteristic exponent, can be estimated using simulation.
TSE, Yiu Kuen, Zhang, Xibin
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Ratio Estimation with Measurement Error in the Auxiliary Variate

Biometrics, 2009
Summary With auxiliary information that is well correlated with the primary variable of interest, ratio estimation of the finite population total may be much more efficient than alternative estimators that do not make use of the auxiliary variate. The well‐known properties of ratio estimators are perturbed when the auxiliary variate is measured with ...
Gregoire, Timothy G., Salas, Christian
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Refractive Error and the Green/Red Ratio*

Journal of the Optical Society of America, 1960
Studies utilizing the Rayleigh equation have indicated that color normal subjects may use widely varying proportions of red and green to match a standard yellow. Six subjects with known refractive errors and with normal color vision made a series of red-green matches to a standard amount of the yellow stimulus. The green/red ratios were plotted against
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Maximal ratio combining with channel estimation errors

IEEE Pacific Rim Conference on Communications, Computers, and Signal Processing. Proceedings, 2002
An ideal coherent maximal ratio (MR) combiner multiplies the signals on all the incoming channels by the complex conjugate of their complex channel gains and then sums the resultant products to provide the optimum combined signal. However, the channel gains can not be estimated perfectly in any practical system.
B.R. Tomiuk, N.C. Beaulieu, A.A. Abu-Dayya   +2 more
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The fog influence on bit error ratio

SPIE Proceedings, 2012
The free space optic links are used in places, where it is very difficult to use optical fiber links. The advantages of free space optic link are a great bit rate, easy and fast installation, unlicensed frequency band. The greatest disadvantage is transmission medium, which it uses in case of FSO link, the atmosphere. The worst influence on FSO link is
Jan Vitasek, Jan Látal, Vladimir Vašinek, Stanislav Hejduk, Andrej Liner, Martin Papes, Petr Koudelka, Artem Ganiyev   +7 more
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Estimating human error probabilities from paired ratios

Microelectronics Reliability, 1996
Abstract The ratio estimates of subjective human error probabilities obtained from paired comparisons are converted to a best set of relative human error quotients; this subjective ratio scale is then converted into an objectified scale of probabilities using a known objective empirical (anchor) probability.
Kyung S. Park, Kwang T. Jung
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Assessing Random Error in the International Normalized Ratio

Therapeutic Drug Monitoring, 1994
Changes in the international normalized ratio (INR) following warfarin administration may be explained not only by the attendant anticoagulant effect but also, in part, by random errors normally associated with laboratory assays. Thus, a patient's true INR will differ from the reported value by some random error related to the variability in the ...
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