Results 21 to 30 of about 59,031 (278)

Robust PPG Peak Detection Using Dilated Convolutional Neural Networks

open access: yesSensors, 2022
Accurate peak determination from noise-corrupted photoplethysmogram (PPG) signal is the basis for further analysis of physiological quantities such as heart rate.
Kianoosh Kazemi   +4 more
doaj   +1 more source

CONVOLUTION OF FUNCTIONS WITH FREE NORMALIZATION

open access: yesDemonstratio Mathematica, 2001
Let \(\mathcal H\) denote the class of functions which are regular in the unit disc \(\Delta =\{z: |z|
Piejko, Krzysztof, Stankiewicz, Jan
openaire   +1 more source

On a surprising relation between the Marchenko-Pastur law, rectangular and square free convolutions [PDF]

open access: yes, 2008
n this paper, we prove a result linking the square and the rectangular R-transforms, the consequence of which is a surprising relation between the square and rectangular versions the free additive convolutions, involving the Marchenko-Pastur law ...
Benaych-Georges, Florent
core   +6 more sources

Online knowledge distillation network for single image dehazing

open access: yesScientific Reports, 2022
Single image dehazing, as a key prerequisite of high-level computer vision tasks, catches more and more attentions. Traditional model-based methods recover haze-free images via atmospheric scattering model, which achieve favorable dehazing effect but ...
Yunwei Lan   +7 more
doaj   +1 more source

On bi-free multiplicative convolution [PDF]

open access: yesStudia Mathematica, 2019
This is the final version of the paper, which will be published in Studia ...
openaire   +2 more sources

Next-to-leading power endpoint factorization and resummation for off-diagonal “gluon” thrust

open access: yesJournal of High Energy Physics, 2022
The lack of convergence of the convolution integrals appearing in next-to-leading-power (NLP) factorization theorems prevents the applications of existing methods to resum power-suppressed large logarithmic corrections in collider physics.
M. Beneke   +6 more
doaj   +1 more source

Comparison Between Frame-Constrained Fix-Pixel-Value and Frame-Free Spiking-Dynamic-Pixel ConvNets for Visual Processing

open access: yesFrontiers in Neuroscience, 2012
Most scene segmentation and categorization architectures for the extraction of features in images and patches make exhaustive use of 2D convolution operations for template matching, template search and denoising.
Clément eFarabet   +8 more
doaj   +1 more source

STENCIL-NET for equation-free forecasting from data

open access: yesScientific Reports, 2023
We present an artificial neural network architecture, termed STENCIL-NET, for equation-free forecasting of spatiotemporal dynamics from data. STENCIL-NET works by learning a discrete propagator that is able to reproduce the spatiotemporal dynamics of the
Suryanarayana Maddu   +4 more
doaj   +1 more source

Massless picture, massive picture, and symmetry in the Gaussian renormalization group [PDF]

open access: yes, 1998
We consider renormalization groups of transformations composed of a Gaussian convolution and a field dilatation. As an example, we consider perturbations of a single component real Euclidean free field $\phi$ with covariance $(-\bigtriangleup)^{-1+\frac{\
Wieczerkowski, Christian
core   +2 more sources

Free Convolution Powers Via Roots of Polynomials [PDF]

open access: yesExperimental Mathematics, 2021
Let $μ$ be a compactly supported probability measure on the real line. Bercovici-Voiculescu and Nica-Speicher proved the existence of a free convolution power $μ^{\boxplus k}$ for any real $k \geq 1$. The purpose of this short note is to give an elementary description of $μ^{\boxplus k}$ in terms of of polynomials and roots of their derivatives.
openaire   +2 more sources

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