Zobrazeno 1 - 10
of 545
pro vyhledávání: '"65t60"'
Autor:
Craig, Katy, Yu, Haoqing
Motivated by classical harmonic analysis results characterizing H\"older spaces in terms of the decay of their wavelet coefficients, we consider wavelet methods for computing s-Wasserstein type distances. Previous work by Sheory (n\'e Shirdhonkar) an
Externí odkaz:
http://arxiv.org/abs/2411.12153
Autor:
Han, Bin, Michelle, Michelle
This paper introduces a wavelet Galerkin method for solving two-dimensional elliptic interface problems of the form in $-\nabla\cdot(a\nabla u)=f$ in $\Omega\backslash \Gamma$, where $\Gamma$ is a smooth interface within $\Omega$. The variable scalar
Externí odkaz:
http://arxiv.org/abs/2410.16596
Autor:
Brislawn, Christopher M.
An intrinsically causal approach to lifting factorization, called the Causal Complementation Algorithm, is developed for arbitrary two-channel perfect reconstruction FIR filter banks. This addresses an engineering shortcoming of the inherently noncau
Externí odkaz:
http://arxiv.org/abs/2408.07970
MGARD (MultiGrid Adaptive Reduction of Data) is an algorithm for compressing and refactoring scientific data, based on the theory of multigrid methods. The core algorithm is built around stable multilevel decompositions of conforming piecewise linear
Externí odkaz:
http://arxiv.org/abs/2408.07212
In this paper, we take a new approach to autoregressive image generation that is based on two main ingredients. The first is wavelet image coding, which allows to tokenize the visual details of an image from coarse to fine details by ordering the inf
Externí odkaz:
http://arxiv.org/abs/2406.19997
Publikováno v:
Physics of Fluids 36, 025120 (2024)
A wavelet-based machine learning method is proposed for predicting the time evolution of homogeneous isotropic turbulence where vortex tubes are preserved. Three-dimensional convolutional neural networks and long short-term memory are trained with a
Externí odkaz:
http://arxiv.org/abs/2404.02256
Marketing is the way we ensure our sales are the best in the market, our prices the most accessible, and our clients satisfied, thus ensuring our brand has the widest distribution. This requires sophisticated and advanced understanding of the whole r
Externí odkaz:
http://arxiv.org/abs/2403.13361
Autor:
Rzadkowski, Grzegorz
The paper deals with the comparison of the Gompertz function and the logistic function. We show that the Gompertz function can be approximated with high accuracy by a sum of three logistic functions (multilogistic function). Two of them are increasin
Externí odkaz:
http://arxiv.org/abs/2405.12984
In this paper, we enhance a recent algorithm for approximate spectral factorization of matrix functions, extending its capabilities to precisely factorize rational matrices when an exact lower-upper triangular factorization is available. This novel a
Externí odkaz:
http://arxiv.org/abs/2312.03518
Autor:
Dizon, Neil D., Hogan, Jeffrey A.
We formulate the construction of quaternion-valued wavelets on the plane as a feasibility problem. We refer to this as the quaternionic wavelet feasibility problem. The constraint sets arise from the standard requirements of smoothness, compact suppo
Externí odkaz:
http://arxiv.org/abs/2311.12614