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相关论文: Metrics and Ambits and Sprawls, Oh My

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Measuring the similarities between objects in information networks has fundamental importance in recommendation systems, clustering and web search. The existing metrics depend on the meta path or meta structure specified by users. In this…

数据库 · 计算机科学 2018-01-30 Yu Zhou , Jianbin Huang , Heli Sun

We describe a natural generalization of irreducibility in order lattices with arbitrary metrics. We analyse the special cases of valuation metrics and more general metrics for lattices. This article is mainly based on a part of the author's…

度量几何 · 数学 2010-05-28 Andreas Lochmann

This paper introduces a novel generalization of the classical concept of $S$-metric spaces, referred to as composed $S$-metric spaces. By incorporating a composed function, we impose more general conditions on the triangle inequality,…

综合数学 · 数学 2025-09-16 Nizar Souayah

We first show that increasing trees are in bijection with set compositions, extending simultaneously a recent result on trees due to Tonks and a classical result on increasing binary trees. We then consider algebraic structures on the…

组合数学 · 数学 2007-05-23 Frederic Patras , Manfred Schocker

This dissertation presents a multifaceted look into the structural decomposition of permutation classes. The theory of permutation patterns is a rich and varied field, and is a prime example of how an accessible and intuitive definition…

组合数学 · 数学 2014-10-13 Cheyne Homberger

Despite all its well-known flaws and calls for its dismissal, the notorious $h$-index is still used in many instances when awarding grants, or promoting and hiring scientists. To address this, I set out to devise a better index, with the…

天体物理仪器与方法 · 物理学 2022-04-01 Henri M. J. Boffin

Motivated by the analysis and geometry of metric-measure structures in infinite dimensions, we study the category of extended metric-topological spaces, along with many of its distinguished subcategories (such as the one of compact spaces).…

范畴论 · 数学 2026-01-13 Enrico Pasqualetto , Timo Schultz , Janne Taipalus

The Isabelle Archive of Formal Proofs has grown to a significant size in the past years. It makes up for an impressive body of research, which enables a number of statistical approaches to various aspects in theorem proving, and has not yet…

计算机科学中的逻辑 · 计算机科学 2022-09-28 Fabian Huch

Classical path search assumes complete graphs and scalar optimization metrics, yet real infrastructure networks are incomplete and require multi-dimensional evaluation. We introduce the concept of traversal: a generalization of paths that…

网络与互联网体系结构 · 计算机科学 2026-02-24 Nicolas Tacheny

We present correspondences induced by some classical mappings between measures on an interval and measures on the unit circle. More precisely, we link their sequences of orthogonal polynomial and their recursion coefficients. We also deduce…

概率论 · 数学 2023-01-24 Fabrice Gamboa , Jan Nagel , Alain Rouault

The string-matching field has grown at a such complicated stage that various issues come into play when studying it: data structure and algorithmic design, database principles, compression techniques, architectural features, cache and…

数据结构与算法 · 计算机科学 2008-01-16 Paolo Ferragina

We observe that the category of topological space, uniform spaces, and simplicial sets are all, in a natural way, full subcategories of the same larger category, namely the simplicial category of filters; this is, moreover, implicit in the…

范畴论 · 数学 2018-02-26 Misha Gavrilovich

We consider random binary trees that appear as the output of certain standard algorithms for sorting and searching if the input is random. We introduce the subtree size metric on search trees and show that the resulting metric spaces…

概率论 · 数学 2014-05-06 Rudolf Grübel

We study the concept of cone metric space in the context of ordered vector spaces by setting up a general and natural framework for it.

泛函分析 · 数学 2014-01-08 Mert Çağlar , Zafer Ercan

Efficiently computing spatio-textual queries has become increasingly important in various applications that need to quickly retrieve geolocated entities associated with textual information, such as in location-based services and social…

数据结构与算法 · 计算机科学 2023-12-18 Georgios Chatzigeorgakidis , Kostas Patroumpas , Dimitrios Skoutas , Spiros Athanasiou

This is a survey on formality results relying on weight structures. A weight structure is a naturally occurring grading on certain differential graded algebras. If this weight satisfies a purity property, one can deduce formality. Algebraic…

代数拓扑 · 数学 2024-06-28 Coline Emprin , Geoffroy Horel

This is a brief introduction to the basic concepts of topology. It includes the basic constructions, discusses separation properties, metric and pseudometric spaces, and gives some applications arising from the use of topology in computing.

逻辑 · 数学 2015-03-04 E. -E. Doberkat

A groundswell of recent work has focused on improving data management systems with learned components. Specifically, work on learned index structures has proposed replacing traditional index structures, such as B-trees, with learned models.…

In this paper, we present a constructive generalization of metric and uniform spaces by introducing a new class of spaces, called cover spaces. These spaces form a topological concrete category with a full reflective subcategory of complete…

一般拓扑 · 数学 2024-12-31 Valery Isaev

Affine metrics and its associated algebroid bundle are developed. Theses structures are applied to the general relativity and provide an structure for unification of gravity and electromagnetism. The final result is a field equation on the…

数学物理 · 物理学 2015-05-30 N. Elyasi , N. Boroojerdian