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This paper measures variation in embedding spaces which have been trained on different regional varieties of English while controlling for instability in the embeddings. While previous work has shown that it is possible to distinguish…

Computation and Language · Computer Science 2023-03-28 Jonathan Dunn

An open problem in optimization with noisy information is the computation of an exact minimizer that is independent of the amount of noise. A standard practice in stochastic approximation algorithms is to use a decreasing step-size. This…

Optimization and Control · Mathematics 2021-02-24 Anastasia Borovykh , Nikolas Kantas , Panos Parpas , Grigorios A. Pavliotis

We consider the variational problem consisting of minimizing a polyconvex integrand for maps between manifolds. We offer a simple and direct proof of the existence of a minimizing map. The proof is based on Young measures.

Optimization and Control · Mathematics 2010-07-28 Patrick Bernard , Ugo Bessi

This paper extends the known characterization of interpolation and sampling sequences for Bergman spaces to the mixed-norm spaces. The Bergman spaces have conformal invariance properties not shared by the mixed-norm spaces. As a result,…

Complex Variables · Mathematics 2018-01-25 Phuc K. Nguyen , Daniel H. Luecking

The structure of invariant regions and globally attracting regions is fundamental to understanding the dynamical properties of reaction network models. We describe an explicit construction of the minimal invariant regions and minimal…

Dynamical Systems · Mathematics 2021-10-28 Yida Ding , Abhishek Deshpande , Gheorghe Craciun

We discuss relations between uniform minimality, unconditionality and interpolation for families of reproducing kernels in backward shift invariant subspaces. This class of spaces contains as prominent examples the Paley-Wiener spaces for…

Complex Variables · Mathematics 2009-01-23 Eric Amar , Andreas Hartmann

For a metric space $(A,d)$, and a set $\Sigma$ of equations, a quantity is introduced that measures how far continuous operations must deviate from satisfying $\Sigma$ on $(A,d)$. }

Rings and Algebras · Mathematics 2015-04-07 Walter Taylor

The least square solution of minimum norm of a rectangular linear system of equations can be found out iteratively by using matrix splittings. However, the convergence of such an iteration scheme arising out of a matrix splitting is…

Numerical Analysis · Mathematics 2025-08-07 Chinmay Kumar Giri , Debasisha Mishra

We discuss the ACC conjecture and the LSC conjecture for minimal log discrepancies of generalized pairs. We prove that some known results on these two conjectures for usual pairs are still valid for generalized pairs. We also discuss the…

Algebraic Geometry · Mathematics 2024-04-10 Weichung Chen , Yoshinori Gongyo , Yusuke Nakamura

It has been postulated that a good representation is one that disentangles the underlying explanatory factors of variation. However, it remains an open question what kind of training framework could potentially achieve that. Whereas most…

The comparison of local characteristics of two random processes can shed light on periods of time or space at which the processes differ the most. This paper proposes a method that learns about regions with a certain volume, where the…

Methodology · Statistics 2022-09-14 Miguel de Carvalho , Gabriel Martos Venturini

A formula is derived for the log quantile difference of the temporal aggregation of some types of stable moving average processes, MA(q). The shape of the log quantile difference as a function of the aggregation level is examined and shown…

Statistics Theory · Mathematics 2014-04-29 Adrian W. Barker

We obtain a unified theory of discrete minimal surfaces based on discrete holomorphic quadratic differentials via a Weierstrass representation. Our discrete holomorphic quadratic differential are invariant under M\"{o}bius transformations.…

Differential Geometry · Mathematics 2016-10-05 Wai Yeung Lam

For two decades, reproducing kernels and their associated discrepancies have facilitated elegant theoretical analyses in the setting of quasi Monte Carlo. These same tools are now receiving interest in statistics and related fields, as…

Methodology · Statistics 2023-08-24 Chris. J. Oates

Imitation learning algorithms have been interpreted as variants of divergence minimization problems. The ability to compare occupancy measures between experts and learners is crucial in their effectiveness in learning from demonstrations.…

Machine Learning · Computer Science 2022-07-05 Georgios Papagiannis , Yunpeng Li

We study maps of bounded variation defined on a metric measure space and valued into a metric space. Assuming the source space to satisfy a doubling and Poincar\'e property, we produce a well-behaved relaxation theory via approximation by…

Functional Analysis · Mathematics 2025-08-05 Camillo Brena , Francesco Nobili , Enrico Pasqualetto

This paper deals with the estimation of the modes of an univariate mixture when the number of components is known and when the component density are well separated. We propose an algorithm based on the minimization of the "kp" criterion we…

Data Analysis, Statistics and Probability · Physics 2007-05-23 Nicolas Paul , Luc Fety , Michel Terre

In this short article, some properties of matrices of moving least-squares approximation have been proven.The used technique is based on singular-value decomposition and inequalities for singular-values. Some inequalities for the norm of…

Numerical Analysis · Mathematics 2015-10-28 Svetoslav Nenov , Tsvetelin Tsvetkov

The use of persistent homology in applications is justified by the validity of certain stability results. At the core of such results is a notion of distance between the invariants that one associates with data sets. Here we introduce a…

Algebraic Topology · Mathematics 2024-07-15 Barbara Giunti , John S. Nolan , Nina Otter , Lukas Waas

We prove a new variant of comparison principle for logarithmic $L_2$-small ball probabilities of Gaussian processes. As an application, we obtain logarithmic small ball asymptotics for some well-known processes with smooth covariances.

Probability · Mathematics 2008-05-14 A. I. Nazarov