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We propose a new space-variant regularization term for variational image restoration based on the assumption that the gradient magnitudes of the target image distribute locally according to a half-Generalized Gaussian distribution. This…

图像与视频处理 · 电气工程与系统科学 2019-06-27 Alessandro Lanza , Serena Morigi , Monica Pragliola , Fiorella Sgallari

The wrapped normal distribution arises when a the density of a one-dimensional normal distribution is wrapped around the circle infinitely many times. At first look, evaluation of its probability density function appears tedious as an…

统计计算 · 统计学 2018-01-01 Gerhard Kurz , Igor Gilitschenski , Uwe D. Hanebeck

We consider the problem of reconstructing a discrete-time signal (sequence) with continuous-valued components corrupted by a known memoryless channel. When performance is measured using a per-symbol loss function satisfying mild regularity…

信息论 · 计算机科学 2008-07-23 Kamakshi Sivaramakrishnan , Tsachy Weissman

In Kohn-Sham electronic structure computations, wave functions have singularities at nuclear positions. Because of these singularities, plane-wave expansions give a poor approximation of the eigenfunctions. In conjunction with the use of…

数值分析 · 数学 2023-01-02 Xavier Blanc , Eric Cancès , Mi-Song Dupuy

A recently proposed normalization condition for the imaginary part of the self-energy of an unstable particle is shown to lead to a closed expression for the field renormalization constant Z. In turn, the exact expression for Z is…

高能物理 - 唯象学 · 物理学 2009-11-07 Bernd A. Kniehl , Alberto Sirlin

We developed new parameterizations of local regularized finite-range pseudopotentials up to next-to-next-to-next-to-leading order (N3LO), used as generators of nuclear density functionals. When supplemented with zero-range spin-orbit and…

核理论 · 物理学 2020-12-15 K. Bennaceur , J. Dobaczewski , T. Haverinen , M. Kortelainen

Semantic segmentation networks (SSNs) are central to safety-critical applications such as medical imaging and autonomous driving, where robustness under uncertainty is essential. However, existing probabilistic verification methods often…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Navid Hashemi , Samuel Sasaki , Diego Manzanas Lopez , Lars Lindemann , Ipek Oguz , Meiyi Ma , Taylor T. Johnson

We propose and study a regularization method for recovering an approximate electrical conductivity solely from the magnitude of one interior current density field. Without some minimal knowledge of the boundary voltage potential, the…

偏微分方程分析 · 数学 2019-03-27 Alexandru Tamasan , Alexander Timonov

In this paper, we presented an efficient algorithm to implement the regularization reconstruction of SPECT. Image reconstruction with priori assumptions is usually modeled as a constrained optimization problem. However, there is no…

最优化与控制 · 数学 2013-06-07 Shousheng Luo , Tie Zhou

Quantizing images into discrete representations has been a fundamental problem in unified generative modeling. Predominant approaches learn the discrete representation either in a deterministic manner by selecting the best-matching token or…

计算机视觉与模式识别 · 计算机科学 2023-10-17 Jiahui Zhang , Fangneng Zhan , Christian Theobalt , Shijian Lu

We propose a regularization scheme for image reconstruction that leverages the power of deep learning while hinging on classic sparsity-promoting models. Many deep-learning-based models are hard to interpret and cumbersome to analyze…

图像与视频处理 · 电气工程与系统科学 2024-07-10 Mehrsa Pourya , Sebastian Neumayer , Michael Unser

Sparsity promoting functions (SPFs) are commonly used in optimization problems to find solutions which are assumed or desired to be sparse in some basis. For example, the l1-regularized variation model and the Rudin-Osher-Fatemi total…

最优化与控制 · 数学 2019-09-13 Lixin Shen , Bruce W. Suter , Erin E. Tripp

We apply concepts from manifold regularization to develop new regularization techniques for training locally stable deep neural networks. Our regularizers are based on a sparsification of the graph Laplacian which holds with high…

机器学习 · 统计学 2020-09-24 Charles Jin , Martin Rinard

Recently \cite{Horowitz:2022rpp,Horowitz:2022uak}, denominator regularisation (Den. Reg.) scheme has been proposed to handle divergences in quantum field theory. It is shown to yield results as simple as in dimensional regularisation scheme…

高能物理 - 唯象学 · 物理学 2022-11-23 Anshika Bansal , Namit Mahajan , Dayanand Mishra

Local-spin-density functional calculations may be affected by severe errors when applied to the study of magnetic and strongly-correlated materials. Some of these faults can be traced back to the presence of the spurious self-interaction in…

材料科学 · 物理学 2009-11-10 Alessio Filippetti , Nicola Spaldin

The stochastic rounding (SR) function is proposed to evaluate and demonstrate the effects of stochastically rounding row and column subscripts in image interpolation and scan conversion. The proposed SR function is based on a pseudorandom…

图形学 · 计算机科学 2022-04-01 Olivier Rukundo , Samuel Emil Schmidt

We introduce Controlled Stochastic Activity Networks (Controlled SANs), a formal extension of classical Stochastic Activity Networks that integrates explicit control actions into a unified semantic framework for modeling distributed…

形式语言与自动机理论 · 计算机科学 2026-02-10 Ali Movaghar

We develop a framework for extracting non-polynomial analytic functions of density matrices in randomized measurement experiments by a method of analytical continuation. A central advantage of this approach, dubbed stabilized analytic…

量子物理 · 物理学 2026-01-29 Akash Vijay , Ayush Raj , Jonah Kudler-Flam , Benoît Vermersch , Andreas Elben , Laimei Nie

The fast reconstruction of a bandlimited function from its sample data is an essential problem in signal processing. In this paper, we consider the widely used Gaussian regularized Shannon sampling formula in comparison to regularized…

数值分析 · 数学 2025-06-09 Melanie Kircheis , Daniel Potts , Manfred Tasche

Within density-functional theory, Moreau-Yosida regularization enables both a reformulation of the theory and a mathematically well-defined definition of the Kohn-Sham approach. It is further employed in density-potential inversion schemes…

材料科学 · 物理学 2026-04-20 Markus Penz , Michael F. Herbst , Trygve Helgaker , Andre Laestadius