Results 41 to 50 of about 331,394 (276)

On the Gaussian Cramér-Rao Bound for Blind Single-Input Multiple-Output System Identification: Fast and Asymptotic Computations

open access: yesIEEE Access, 2020
The Cramér-Rao Bound (CRB) is a powerful tool to assess the performance limits of a parameter estimation problem for a given statistical model. In particular, the Gaussian CRB (i.e., the CRB obtained assuming the data are Gaussian) corresponds to
Mohamed Nait-Meziane   +3 more
doaj   +1 more source

Beyond braid statistics: Constructing a lattice model for anyons with exchange statistics intrinsic to one dimension

open access: yesSciPost Physics
Anyons obeying fractional exchange statistics arise naturally in two dimensions: Hard-core two-body constraints make the configuration space of particles not simply-connected. The braid group describes how topologically-inequivalent exchange paths can be
Sebastian Nagies, Botao Wang, Adam C. Knapp, André Eckardt, Nathan L. Harshman
doaj   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

open access: yesMolecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix   +13 more
wiley   +1 more source

Statistical applications for equivariant matrices

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
Solving linear system of equations Ax=b enters into many scientific applications. In this paper, we consider a special kind of linear systems, the matrix A is an equivariant matrix with respect to a finite group of permutations. Examples of this kind are
S. H. Alkarni
doaj   +1 more source

The statistical dependence of auroral absorption on geomagnetic and solar wind parameters [PDF]

open access: yesAnnales Geophysicae, 2004
Data from the Imaging Riometer for Ionospheric Studies (IRIS) at Kilpisjärvi, Finland, have been compiled to form statistics of auroral absorption based on seven years of observations.
A. J. Kavanagh   +8 more
doaj   +1 more source

Bayesian Estimation Improves Prediction of Outcomes After Epilepsy Surgery

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We estimated the statistical power of studies predicting seizure freedom after epilepsy surgery. We extracted data from a Cochrane meta‐analysis. The median power across all studies was 14%. Studies with a median sample size or less (n ≤ 56) and a statistically significant result exaggerated the true effect size by a factor of 5.4, while the ...
Adam S. Dickey   +4 more
wiley   +1 more source

Efficient and Accurate Gaussian Image Filtering Using Running Sums

open access: yes, 2011
This paper presents a simple and efficient method to convolve an image with a Gaussian kernel. The computation is performed in a constant number of operations per pixel using running sums along the image rows and columns.
Elboher, Elhanan, Werman, Michael
core   +2 more sources

Wavelets and WMAP non-Gaussianity [PDF]

open access: yes, 2004
We study the statistical properties of the 1st year WMAP data on different scales using the spherical mexican hat wavelet transform. Consistent with the results of Vielva et al.
Mukherjee, Pia, Wang, Yun
core   +4 more sources

Sex differences in medication discontinuation in axial spondyloarthritis.

open access: yesArthritis Care &Research, Accepted Article.
Objective We examined sex differences in medication discontinuation among patients with axial spondyloarthritis (axSpA) initiating tumor necrosis factor inhibitors (TNFi), interleukin‐17 inhibitors (IL‐17i), or Janus kinase inhibitors (JAKi). Methods Using data from the Rheumatology Informatics System for Effectiveness (RISE) Registry (2003–2025), we ...
Rachael Stovall   +9 more
wiley   +1 more source

Some convergence results on quadratic forms for random fields and application to empirical covariances [PDF]

open access: yes, 2010
Limit theorems are proved for quadratic forms of Gaussian random fields in presence of long memory. We obtain a non central limit theorem under a minimal integrability condition, which allows isotropic and anisotropic models.
Lavancier, Frédéric, Philippe, Anne
core   +4 more sources

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