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Locating a target is key in many applications, namely in high-stakes real-world scenarios, like detecting humans or obstacles in vehicular networks. In scenarios where precise statistics of the measurement noise are unavailable,…

最优化与控制 · 数学 2022-08-17 João Domingos , Cláudia Soares , João Xavier

The present paper is devoted to new, improved bounds for the eigenfunctions of random operators in the localized regime. We prove that, in the localized regime with good probability, each eigenfunction is exponentially decaying outside a…

数学物理 · 物理学 2021-05-28 Frédéric Klopp , Jeffrey Schenker

Fix a set-theoretic universe $V$. We look at small extensions of $V$ as generalised degrees of computability over $V$. We also formalise and investigate the complexity of certain methods one can use to define, in $V$, subclasses of degrees…

逻辑 · 数学 2025-01-03 Desmond Lau

The goal of ordinal embedding is to represent items as points in a low-dimensional Euclidean space given a set of constraints in the form of distance comparisons like "item $i$ is closer to item $j$ than item $k$". Ordinal constraints like…

机器学习 · 统计学 2016-06-24 Lalit Jain , Kevin Jamieson , Robert Nowak

Ordinal embedding aims at finding a low dimensional representation of objects from a set of constraints of the form "item $j$ is closer to item $i$ than item $k$". Typically, each object is mapped onto a point vector in a low dimensional…

机器学习 · 计算机科学 2021-05-26 Aïssatou Diallo , Johannes Fürnkranz

In this paper we present a technical lemma about localization at countable infinitely many prime ideals. We apply this lemma to get many results about the finiteness of associated prime ideals of local cohomology modules.

交换代数 · 数学 2015-03-09 Kamal Bahmanpour , Pham Hung Quy

The concepts of localizable set, localization of a ring and a module at a localizable set are introduced and studied. Localizable sets are generalization of Ore sets and denominator sets, and the localization of a ring/module at a…

环与代数 · 数学 2021-12-28 V. V. Bavula

Let $X$ be a ringed space together with the data $M$ of a set $M_x$ of prime ideals of $\O_{X,x}$ for each point $x \in X$. We introduce the localization of $(X,M)$, which is a locally ringed space $Y$ and a map of ringed spaces $Y \to X$…

代数几何 · 数学 2011-03-14 W. D. Gillam

Finding models for linear-time properties is a central problem in verification and planning. We study the distribution of linear-time models by investigating the density of linear-time properties over the space of ultimately periodic words.…

形式语言与自动机理论 · 计算机科学 2018-03-26 Bernd Finkbeiner , Hazem Torfah

We prove that almost all real numbers (with respect to Lebesgue measure) are approximated by the convergents of their $\beta$-expansions with the exponential order $\beta^{-n}$. Moreover, the Hausdorff dimensions of sets of the real numbers…

数论 · 数学 2016-07-25 Lulu Fang , Min Wu , Bing Li

Many approaches in the field of machine learning and data analysis rely on the assumption that the observed data lies on lower-dimensional manifolds. This assumption has been verified empirically for many real data sets. To make use of this…

机器学习 · 计算机科学 2022-09-27 Erik Thordsen , Erich Schubert

We generalize the notions of $\beta$- and $\lambda$-maps to general selections of sublocales, obtaining different classes of localic maps. These new classes of maps are used to characterize almost normality, extremal disconnectedness,…

一般拓扑 · 数学 2024-07-25 Ana Belén Avilez

Relaxation theorems for multiple integrals on W^{1,p}(\Omega;\RR^m), where p\in]1,\infty[, are proved under general conditions on the integrand L:\MM\to[0,\infty] which is Borel measurable and not necessarily finite. We involve a…

经典分析与常微分方程 · 数学 2013-02-06 Jean-Philippe Mandallena

This work developes a quantitative framework for describing the overcompleteness of a large class of frames. A previous paper introduced notions of localization and approximation between two frames $\mathcal{F} = \{f_i\}_{i \in I}$ and…

泛函分析 · 数学 2007-05-23 R. Balan , P. G. Casazza , C. Heil , Z. Landau

In this paper, the classification task for a family of sets representing the realisation of some random set models is solved. Both unsupervised and supervised classification methods are utilised using the similarity measure between two…

统计方法学 · 统计学 2025-11-10 Bogdan Radović , Vesna Gotovac Đogaš , Kateřina Helisová

We extend the algorithms of Robinson, Smyth, and McKee--Smyth to enumerate all real-rooted integer polynomials of a fixed degree, where the first few (at least three) leading coefficients are specified. Additionally, we introduce new linear…

组合数学 · 数学 2025-04-15 Gary R. W. Greaves , Jeven Syatriadi

We study the localization of bosonic atoms in an optical lattice, which interact in a spatially confined region. The classical theory predicts that there is no localization below a threshold value for the strength of interaction that is…

其他凝聚态物理 · 物理学 2008-08-05 Joachim Brand , Sergej Flach , Victor Fleurov , L. S. Schulmann , Denis Tolkunov

Within a mathematically rigorous model, we analyse the curse of dimensionality for deterministic exact similarity search in the context of popular indexing schemes: metric trees. The datasets $X$ are sampled randomly from a domain $\Omega$,…

数据结构与算法 · 计算机科学 2013-03-27 Vladimir Pestov

Neighborly polytopes are those that maximize the number of faces in each dimension among all polytopes with the same number of vertices. Despite their extremal properties they form a surprisingly rich class of polytopes, which has been…

组合数学 · 数学 2015-01-30 Hiroyuki Miyata , Arnau Padrol

We prove a couple of results on local continuous extension of proper holomorphic maps $F:D \rightarrow \Omega$, $D, \Omega \varsubsetneq \mathbb{C}^n$, making local assumptions on $\partial{D}$ and $\partial{\Omega}$. The first result…

复变函数 · 数学 2024-04-25 Annapurna Banik