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In this work, we propose an efficient two-stage algorithm solving a joint problem of correlation detection and partial alignment recovery between two Gaussian databases. Correlation detection is a hypothesis testing problem; under the null…

信息论 · 计算机科学 2023-05-26 Ran Tamir

We analyze correlation functions in a toy model of a random geometry interacting with matter. We show that in general the connected correlator will contain a long-range scaling part which is in some sense a remnant of the disconnected part.…

高能物理 - 格点 · 物理学 2015-06-25 J. Ambjorn , P. Bialas , J. Jurkiewicz

Real-world learning tasks often encounter uncertainty due to covariate shift and noisy or inconsistent labels. However, existing robust learning methods merge these effects into a single distributional uncertainty set. In this work, we…

统计方法学 · 统计学 2026-03-17 Varun Venkatesh , Eyke Hüllermeier , Bernd Bischl , Mina Rezaei

Correlation is a common technique for the detection of shifts. Its generalization to the multidimensional geometric correlation in Clifford algebras additionally contains information with respect to rotational misalignment. It has been…

代数几何 · 数学 2013-06-11 Roxana Bujack , Gerik Scheuermann , Eckhard Hitzer

As an important resource to realize quantum information, quantum correlation displays different behaviors, freezing phenomenon and non-localization, which are dissimilar to the entanglement and classical correlation, respectively. In our…

量子物理 · 物理学 2018-12-10 Qin-Sheng Zhu , Xiao-Yu Li , Ming-Zheng Zhu , Yi-Ming Huang , Hao Wu , Shao-Yi Wu

We consider phase separation on the strip for the two-dimensional Ising model in the near-critical region. Within the framework of field theory, we find exact analytic results for certain two- and three-point correlation functions of the…

统计力学 · 物理学 2021-09-01 Alessio Squarcini , Antonio Tinti

We give an introduction to the theory of quantum error correction using stabilizer codes that is geared towards the working computer scientists and mathematicians with an interest in exploring this area. To this end, we begin with an…

量子物理 · 物理学 2026-02-03 Zachary P. Bradshaw , Jeffrey J. Dale , Ethan N. Evans

Correlation is a common technique for the detection of shifts. Its generalization to the multidimensional geometric correlation in Clifford algebras has been proven a useful tool for color image processing, because it additionally contains…

计算机视觉与模式识别 · 计算机科学 2013-07-10 Roxana Bujack , Gerik Scheuermann , Eckhard Hitzer

We study the transition from incoherence to coherence in large networks of coupled phase oscillators. We present various approximations that describe the behavior of an appropriately defined order parameter past the transition, and…

无序系统与神经网络 · 物理学 2009-11-10 Juan G. Restrepo , Brian R. Hunt , Edward Ott

In the absence of synaptic coupling, two or more neural oscillators may become synchronized by virtue of the statistical correlations in their noisy input streams. Recent work has shown that the degree of correlation transfer from input…

动力系统 · 数学 2015-03-17 Aushra Abouzeid , Bard Ermentrout

A statistical field theory of particle production is presented using a gaussian functional in three dimensions. Identifying the field with the particle density fluctuation results in zero correlations of order three and higher, while the…

高能物理 - 唯象学 · 物理学 2015-06-25 H. C. Eggers , H-Th. Elze , I. Sarcevic

A central question in numerical homogenization of partial differential equations with multiscale coefficients is the accurate computation of effective quantities, such as the homogenized coefficients. Computing homogenized coefficients…

数值分析 · 数学 2020-07-22 Assyr Abdulle , Doghonay Arjmand , Edoardo Paganoni

We present a systematic derivation of the form of correlators of N operators in a Conformal Field Theory in d>2 dimensions and the exchange-symmetry constraints that the functions of the dimensionless cross-ratios obey for N>3.

高能物理 - 理论 · 物理学 2020-01-29 Nikos Irges , Fotis Koutroulis , Dimosthenis Theofilopoulos

A formulation for evaluating the performance of quantum error correcting codes for a general error model is presented. In this formulation, the correlation between errors is quantified by a Hamiltonian description of the noise process. We…

量子物理 · 物理学 2009-11-13 A. Shabani

In electronic structure calculations, the correlation energy is defined as the difference between the mean field and the exact solution of the non relativistic Schr\"odinger equation. Such an error in the different calculations is not…

量子物理 · 物理学 2022-04-04 Kumar J. B. Ghosh , Sabre Kais , Dudley R. Herschbach

Testing restrictions on regression coefficients in linear models often requires correcting the conventional F-test for potential heteroskedasticity or autocorrelation amongst the disturbances, leading to so-called heteroskedasticity and…

统计理论 · 数学 2016-12-21 David Preinerstorfer , Benedikt M. Pötscher

Hidden symmetries of non-relativistic $\mathfrak{so} (2,1)\cong \mathfrak{sl}(2, {\mathbb R})$ invariant systems in a cosmic string background are studied using the conformal bridge transformation. Geometric properties of this background…

高能物理 - 理论 · 物理学 2021-05-26 Luis Inzunza , Mikhail S. Plyushchay

The theory of phase ordering kinetics for the O(2) model using the gaussian auxiliary field approach is reexamined from two points of view. The effects of fluctuations about the ordering field are included and we organize the theory such…

凝聚态物理 · 物理学 2009-10-28 Gene F. Mazenko , Robert A. Wickham

We obtain an implicit equation for the correlation dimension which describes clustering of inertial particles in a complex flow onto a fractal measure. Our general equation involves a propagator of a nonlinear stochastic process in which…

流体动力学 · 物理学 2015-09-08 Kristian Gustavsson , Bernhard Mehlig , Michael Wilkinson

Biological and physical systems often exhibit distinct structures at different spatial/temporal scales. Persistent homology is an algebraic tool that provides a mathematical framework for analyzing the multi-scale structures frequently…

代数拓扑 · 数学 2016-02-01 Jonathan Jaquette , Miroslav Kramár