Results 261 to 270 of about 2,188,866 (304)

Exact computations for the coherence estimate

Medical & Biological Engineering & Computing, 2007
The recent paper by Miranda de Sa et al. [10] developed methods for computing the sampling distribution of the coherence estimate between two signals. However, the methods were based on some approximations because it was claimed that exact calculations required extensive computations. In this technical note, we provide analytical expressions and 1-line
Saralees Nadarajah, Samuel Kotz
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Exact Estimates for a Rate Ratio

Epidemiology, 1996
The incidence rate ratio is a basic measure of association in epidemiology. We present a simple and efficient method for computing exact confidence limits for the common rate ratio in a series of 2 x 2 tables with person-time denominators. The method uses a polynomial multiplication (convolution) algorithm previously described for an odds ratio.
D O, Martin, H, Austin
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Exact and efficient crosstalk estimation

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2001
With the reducing distances between wires in deep submicrometer technologies, coupling capacitances are becoming significant as their magnitude becomes comparable to the area capacitance and fringing capacitance of a wire. This causes an increasing susceptibility to failure due to inadvertent noise and leads to a requirement for accurate noise ...
Martin Kuhlmann, Sachin S. Sapatnekar
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Exact ML Estimation of Spectroscopic Parameters

Journal of Magnetic Resonance, 2000
In a paper on spectroscopic imaging published in this journal Spielman et al. (J. Magn. Reson. 79, 66-77 (1988)) made the important point that a priori information about the compounds present can and should be incorporated into the estimation of spectroscopic signal parameters.
Petre Stoica, Tomas Sundin
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Exact Estimates for Potentials

SIAM Journal on Mathematical Analysis, 1988
For $\lambda \geqq 0$ it is determined precisely which functions $V(x) \geqq 0$ on ${\bf R}^n $ satisfy an inequality of the form \[ (Vu,u) \leqq C_\lambda (V)\left( {\| {\nabla u} \|^2 + \lambda ^2 \| u \|^2 } \right),\quad u \in C_0^\infty \] for some constant $C_\lambda (V)$. The value of the smallest such constant is found.
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The Exact Distribution of the SUR Estimator

Econometrica, 1985
This paper derives the exact finite sample distribution of the two-stage generalized least squares estimator in a multivariate linear model with general linear parameter restrictions. This includes the seemingly unrelated regression model as a special case and generalizes presently known exact results for the latter system.
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Exact quantification of the variance of estimated zeros

Proceedings of the 44th IEEE Conference on Decision and Control, 2006
This paper is concerned with quantification of noise induced errors in estimates of zeros of dynamic systems. Preceding work on this problem has provided variance expressions that are asymptotic in data length and model order for non-minimum phase zeros.
Jonas Mårtensson 0001, Håkan Hjalmarsson   +1 more
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Estimate of Turbulent Eddy Diffusion by Exact Renormalization

SIAM Journal on Applied Mathematics, 2002
By using a Lagrangian renormalization formulation, the effective diffusion equation is rigorously derived for a tracer in a homogeneous, isotropic, stationary, multidimensional and zero-mean Gaussian velocity field with a known two-point/two-time correlation tensor.
Alexandra Indeikina, Hsueh-Chia Chang
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