Results 261 to 270 of about 5,593,392 (326)

Estimates for Conformal Metric Ratios

Computational Methods and Function Theory, 2006
Let \(D\) be a domain in the Riemann sphere \(\widehat{C}\) possessing at least two boundary points. For a point \(z\in D\), let \(\lambda_D(z)\) be the hyperbolic density in \(D\) and let \[ \mu_D(z):=\inf\{\lambda_\Delta(z):z\in \Delta\subset D,\;D\text{ is a disk in } \widehat{C}\} \] be the Möbius metric-density in \(D\).
Herron, David A., Ma, William, Minda, David   +2 more
openaire   +2 more sources

Estimating Pathogen-specific Asymptomatic Ratios

Epidemiology, 2010
The asymptomatic ratio (the proportion of asymptomatic infected cases among the total infected cases) is an important indicator in public health. However, symptoms manifested by a case infected with a pathogen may result from infections other than the specific pathogen of interest. When a case is infected with multiple pathogens, it can be difficult to
WANG, TE-EN, LIN, CHIEN-YU, KING, CHWAN-CHUEN, LEE, WEN-CHUNG   +3 more
openaire   +3 more sources

Approaches for estimating prevalence ratios

Occupational and Environmental Medicine, 2008
Recently there has been much interest in estimating the prevalence (risk, proportion or probability) ratio instead of the odds ratio, especially in occupational health studies involving common outcomes (for example, with prevalence rates above 10%). For example, if 80 out of 100 exposed subjects have a particular disease and 50 out of 100 non-exposed ...
J A, Deddens, M R, Petersen
openaire   +2 more sources

NATIONAL ACCOUNTS ESTIMATION USING INDICATOR RATIOS

Review of Income and Wealth, 2000
We propose a new approach to national accounts compilation, which also serves as a formalization of current compilation practices. When formalizing the procedure, a distinction is made between (basic) data, national accounts identities and so‐called indicator ratios.
Magnus, J.W., van Tongeren, J.R., de Vos, A.F.   +2 more
openaire   +2 more sources

Unbiased Componentwise Ratio Estimation

Journal of the American Statistical Association, 1961
Abstract If the variates x and y are linearly related by a regression through the origin and if the population mean for the variate x is known, then a ratio estimator such as is generally more efficient than the sample mean as an estimator of the population mean .
D. S. Robson, C. Vithatasai
openaire   +1 more source

Ratios of Magnitude Estimates

1974
Suppose magnitude estimates on successive trials preserve the ratio of random internal representations of the corresponding signals. Then the mean response generally exhibits drift over trials; sequential dependencies usually exist in which case the mean response ratio is not a function of intensity ratio; however, a modified function is if the mean ...
R. Duncan Luce, David M. Green
openaire   +1 more source

Modified Ratio Estimator in Systematic Random Sampling Under Non-response

Proceedings of the National Academy of Sciences India Section A Physical Sciences, 2018
Amjad Javaid, Muhammad Noor-ul-Amin, M. Hanif   +2 more
semanticscholar   +1 more source

An EWMA control chart using two parametric ratio estimator

, 2018
Muhammad Noor-ul-Amin, S. Khan, Muhammad Aslam   +2 more
semanticscholar   +1 more source

Likelilood ratio gradient estimation

Proceedings of the 19th conference on Winter simulation - WSC '87, 1987
The likelihood ratio method for gradient estimation is briefly surveyed. Two applications settings are described, namely Monte Carlo optimization and statistical analysis of complex stochastic systems. Steady-state gradient estimation is emphasized, and both regenerative and non-regenerative approaches are given.
openaire   +1 more source

Performance of the Peto odds ratio compared to the usual odds ratio estimator in the case of rare events

Biometrical journal. Biometrische Zeitschrift, 2016
A. Brockhaus, U. Grouven, R. Bender
semanticscholar   +1 more source