Zobrazeno 1 - 10
of 343
pro vyhledávání: '"G.0"'
This article develops a novel data assimilation methodology, addressing challenges that are common in real-world settings, such as severe sparsity of observations, lack of reliable models, and non-stationarity of the system dynamics. These challenges
Externí odkaz:
http://arxiv.org/abs/2411.01786
Publikováno v:
IET Image Processing, Vol.12, No.9, 1626--1638, August 2018
Wavelet-based segmentation approaches are widely used for texture segmentation purposes because of their ability to characterize different textures. In this paper, we assess the influence of the chosen wavelet and propose to use the recently introduc
Externí odkaz:
http://arxiv.org/abs/2410.19191
Publikováno v:
Journal of Imaging, Special Issue "2020 Selected Papers from Journal of Imaging Editorial Board Members", Vol.6, No.12, 140, 2020
The empirical wavelet transform is an adaptive multiresolution analysis tool based on the idea of building filters on a data-driven partition of the Fourier domain. However, existing 2D extensions are constrained by the shape of the detected partitio
Externí odkaz:
http://arxiv.org/abs/2410.19187
Autor:
Gilles, Jerome
Publikováno v:
Advances in Data Science and Adaptive Analysis, Vol. 12, No 03n04, 2050006, 2020
The recently proposed empirical wavelet transform was based on a particular type of filter. In this paper, we aim to propose a general framework for the construction of empirical wavelet systems in the continuous case. We define a well-suited formali
Externí odkaz:
http://arxiv.org/abs/2410.19167
Autor:
Aragão, Francisco, Alcântara, João
When we merge information in Dempster-Shafer Theory (DST), we are faced with anomalous behavior: agents with equal expertise and credibility can have their opinion disregarded after resorting to the belief combination rule of this theory. This proble
Externí odkaz:
http://arxiv.org/abs/2408.08928
Let $Q$ be a quiver and $R$ an associative ring. A representation by $R$-modules of $Q$ is called strongly fp-injective if it admits a pure acyclic injective resolution in the category of representations. It is shown that such representations possess
Externí odkaz:
http://arxiv.org/abs/2407.21660
Autor:
Gilles, Jerome, Castro, Richard
Due to their adaptive nature, empirical wavelets had several successes in many fields from engineering, science, medical signal/image processing. Recently, a general theoretical framework has been developed in the one-dimensional case, showing the po
Externí odkaz:
http://arxiv.org/abs/2407.16089
Practical optimization problems may contain different kinds of difficulties that are often not tractable if one relies on a particular optimization method. Different optimization approaches offer different strengths that are good at tackling one or m
Externí odkaz:
http://arxiv.org/abs/2407.03454
Autor:
Busé, Laurent, Mazón, Pablo
We provide effective methods to construct and manipulate trilinear birational maps $\phi:(\mathbb{P}^1)^3\dashrightarrow \mathbb{P}^3$ by establishing a novel connection between birationality and tensor rank. These yield four families of nonlinear bi
Externí odkaz:
http://arxiv.org/abs/2405.16936
Autor:
Beise, Hans-Peter
We leverage the framework of hyperplane arrangements to analyze potential regions of (stable) fixed points. We provide an upper bound on the number of fixed points for multi-layer neural networks equipped with piecewise linear (PWL) activation functi
Externí odkaz:
http://arxiv.org/abs/2405.09878