Zobrazeno 1 - 10
of 2 674
pro vyhledávání: '"Plonka, A."'
Autor:
Plonka, Gerlind, Riebe, Yannick
We propose a new fast algorithm for simultaneous recovery of the coil sensitivities and the magnetization image from incomplete Fourier measurements in parallel MRI. Our approach is based on suitable parameter models for both, the magnetization image
Externí odkaz:
http://arxiv.org/abs/2403.12611
Autor:
Derevianko, Nadiia, Plonka, Gerlind
In this paper we propose a method to approximate the Gaussian function on ${\mathbb R}$ by a short cosine sum. We extend the differential approximation method proposed in [4,39] to approximate $\mathrm{e}^{-t^{2}/2\sigma}$ in the weighted space $L_2(
Externí odkaz:
http://arxiv.org/abs/2307.13587
We analyze the structure of a one-dimensional deep ReLU neural network (ReLU DNN) in comparison to the model of continuous piecewise linear (CPL) spline functions with arbitrary knots. In particular, we give a recursive algorithm to transfer the para
Externí odkaz:
http://arxiv.org/abs/2207.14609
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-18 (2023)
Abstract Artificial intelligence (AI) algorithms, encompassing machine learning and deep learning, can assist ophthalmologists in early detection of various ocular abnormalities through the analysis of retinal optical coherence tomography (OCT) image
Externí odkaz:
https://doaj.org/article/5da323658f324283a0ce2cb1d8fdcc75
In this paper we introduce two new algorithms for stable approximation with and recovery of short cosine sums. The used signal model contains cosine terms with arbitrary real positive frequency parameters and therefore strongly generalizes usual Four
Externí odkaz:
http://arxiv.org/abs/2204.03312
Publikováno v:
In Chemosphere July 2024 359
Autor:
Płonka, Tomasz, Wiśniewski, Andrzej, Marciszak, Adrian, Ziółkowski, Grzegorz, Lipecki, Grzegorz, Diakowski, Marcin, Serwatka, Kamil
Publikováno v:
In Journal of Archaeological Science June 2024 166
Wavelet scattering transform application in classification of retinal abnormalities using OCT images
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract To assist ophthalmologists in diagnosing retinal abnormalities, Computer Aided Diagnosis has played a significant role. In this paper, a particular Convolutional Neural Network based on Wavelet Scattering Transform (WST) is used to detect on
Externí odkaz:
https://doaj.org/article/984c9d67d6734d48a50bd234ce77d5d0
We introduce a new method for Estimation of Signal Parameters based on Iterative Rational Approximation (ESPIRA) for sparse exponential sums. Our algorithm uses the AAA algorithm for rational approximation of the discrete Fourier transform of the giv
Externí odkaz:
http://arxiv.org/abs/2106.15140
Autor:
Magali Payne, Kevin Galery, Alexandra Plonka, Justine Lemaire, Alexandre Derreumaux, Roxane Fabre, Aurélie Mouton, Guillaume Sacco, Olivier Guerin, Valeria Manera, Philippe Robert, Olivier Beauchet, Auriane Gros
Publikováno v:
Frontiers in Public Health, Vol 12 (2024)
IntroductionPrevious studies have shown benefits of productive art-activity on frail older adults' mental and physical health. In this study, we investigated the effects of art-producing activities in a hybrid format (in-person and online) in a conte
Externí odkaz:
https://doaj.org/article/3023e1a9624145d48d71a39760a36ef6