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Random smoothing data augmentation is a unique form of regularization that can prevent overfitting by introducing noise to the input data, encouraging the model to learn more generalized features. Despite its success in various…

机器学习 · 统计学 2023-05-15 Liang Ding , Tianyang Hu , Jiahang Jiang , Donghao Li , Wenjia Wang , Yuan Yao

We construct global-in-time singular dynamics for the (renormalized) cubic fourth order nonlinear Schr\"odinger equation on the circle, having the white noise measure as an invariant measure. For this purpose, we introduce the…

偏微分方程分析 · 数学 2020-11-25 Tadahiro Oh , Nikolay Tzvetkov , Yuzhao Wang

Consider a dynamical system given by a planar differential equation, which exhibits an unstable periodic orbit surrounding a stable periodic orbit. It is known that under random perturbations, the distribution of locations where the…

概率论 · 数学 2014-01-20 Nils Berglund , Barbara Gentz

It is well known that the toroidal dimensional reduction of supergravities gives rise in three dimensions to theories whose bosonic sectors are described purely in terms of scalar degrees of freedom, which parameterise sigma-model coset…

高能物理 - 理论 · 物理学 2007-05-23 E. Cremmer , B. Julia , H. Lu , C. N. Pope

The purpose of this article is to introduce and study a relativistic motion whose acceleration, in proper time, is given by a white noise. We deal with general relativity, and consider more closely the problem of the asymptotic behaviour of…

概率论 · 数学 2007-05-23 Jacques Franchi , Yves Le Jan

This paper describes how parametric resonances associated with a galactic potential subjected to relatively low amplitude, strictly periodic time-dependent perturbations can be impacted by pseudo-random variations in the pulsation…

天体物理学 · 物理学 2009-11-10 Ioannis V. Sideris , Henry E. Kandrup

Mathematics is usually regarded as a kind of language. The essential behavior of physical phenomena can be expressed by mathematical laws, providing descriptions and predictions. In the present essay I argue that, although mathematics can…

物理学史与哲学 · 物理学 2016-04-01 Christine Cordula Dantas

This paper summarises an investigation of the effects of low amplitude noise and periodic driving on phase space transport in 3-D Hamiltonian systems, a problem directly applicable to systems like galaxies, where such perturbations reflect…

天体物理学 · 物理学 2009-10-31 Henry E. Kandrup , Ilya V. Pogorelov , Ioannis Sideris

Let X be a singular affine normal variety with coordinate ring R and assume that there is an R-order admitting a stability structure such that the scheme of relevant semistable representations is smooth, then we construct a partial…

环与代数 · 数学 2007-05-23 Lieven Le Bruyn , Stijn Symens

We propose a concept of disordered resonant media, which are characterized by random variations of their parameters along the light propagation direction. In particular, a simple model of disorder considered in the paper implies random…

光学 · 物理学 2018-01-22 Denis Novitsky

Causal fermion systems are introduced as a general mathematical framework for formulating relativistic quantum theory. By specializing, we recover earlier notions like fermion systems in discrete space-time, the fermionic projector and…

数学物理 · 物理学 2014-06-17 Felix Finster , Andreas Grotz , Daniela Schiefeneder

In the theory of random dynamical systems (RDS), individuals with different initial states follow a same law of motion that is stochastically changing with time | called extrinsic noise. In the present work, intrin- sic noises for each…

概率论 · 数学 2018-06-21 Adrian Jarret

Time-irreversibility is a distinctive feature of non-equilibrium dynamics and several measures of irreversibility have been introduced to assess the distance from thermal equilibrium of a stochastically driven system. While the dynamical…

统计力学 · 物理学 2022-02-14 Grzegorz Gradziuk , Gabriel Torregrosa , Chase P. Broedersz

In a system of non-linear chemical reactions called the Brusselator, we show that {\it intrinsic noise} can be regulated to drive it to exhibit resonance in the presence of a sub-threshold signal. The phenomena of periodic stochastic…

化学物理 · 物理学 2012-08-06 Supravat Dey , Dibyendu Das , P. Parmananda

In the past we have considered Gaussian random matrix ensembles in the presence of an external matrix source. The reason was that it allowed, through an appropriate tuning of the eigenvalues of the source, to obtain results on non-trivial…

高能物理 - 理论 · 物理学 2018-09-26 E. Brezin , S. Hikami

We study the random processes with non-local memory and obtain new solutions of the Mori-Zwanzig equation describing non-markovian systems. We analyze the system dynamics depending on the amplitudes $\nu$ and $\mu_0$ of the local and…

统计力学 · 物理学 2021-03-24 S. S. Melnyk , O. V. Usatenko , V. A. Yampol'skii

A reflexive relation on a set can be a starting point in defining the causal structure of a spacetime in General Relativity and other relativistic theories of gravity. If we identify this relation as the relation between lightlike separated…

广义相对论与量子宇宙学 · 物理学 2016-06-07 Ovidiu Cristinel Stoica

In this paper we construct a new type of noise of fractional nature that has a strong regularizing effect on differential equations. We consider an equation with this noise with a highly irregular coefficient. We employ a new method to…

泛函分析 · 数学 2018-06-26 Oussama Amine , David Baños , Frank Proske

High dimensional data can have a surprising property: pairs of data points may be easily separated from each other, or even from arbitrary subsets, with high probability using just simple linear classifiers. However, this is more of a rule…

机器学习 · 计算机科学 2023-11-15 Oliver J. Sutton , Qinghua Zhou , Alexander N. Gorban , Ivan Y. Tyukin

We investigate the effects of a time-correlated noise on an extended chaotic system. The chosen model is the Lorenz'96, a kind of "toy" model used for climate studies. Through the analysis of the system's time evolution and its time and…

混沌动力学 · 物理学 2009-11-13 Jorge A. Revelli , Miguel A. Rodriguez , Horacio S. Wio