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Recent years are characterized by an unprecedented quantity of available network data which are produced at an astonishing rate by an heterogeneous variety of interconnected sensors and devices. This high-throughput generation calls for the…

数据结构与算法 · 计算机科学 2020-03-27 Marco Fiorucci

The well-known regularity lemma of E. Szemer\'edi for graphs (i.e. 2-uniform hypergraphs) claims that for any graph there exists a vertex partition with the property of quasi-randomness. We give a simple construction of such a partition. It…

组合数学 · 数学 2009-05-01 Yoshiyasu Ishigami

Szemer\'edi's Regularity Lemma is an important tool for analyzing the structure of dense graphs. There are versions of the Regularity Lemma for sparse graphs, but these only apply when the graph satisfies some local density condition. In…

组合数学 · 数学 2010-11-09 Alexander Scott

Introduced in the mid-1970's as an intermediate step in proving a long-standing conjecture on arithmetic progressions, Szemer\'edi's regularity lemma has emerged over time as a fundamental tool in different branches of graph theory,…

计算机视觉与模式识别 · 计算机科学 2016-09-22 Marcello Pelillo , Ismail Elezi , Marco Fiorucci

We introduce a new method for decomposing the edge set of a graph, and use it to replace the Regularity lemma of Szemer\'edi in some graph embedding problems. An algorithmic version is also given.

组合数学 · 数学 2021-10-27 Béla Csaba

In this paper we analyze the practical implications of Szemer\'edi's regularity lemma in the preservation of metric information contained in large graphs. To this end, we present a heuristic algorithm to find regular partitions. Our…

数据结构与算法 · 计算机科学 2017-03-22 Marco Fiorucci , Alessandro Torcinovich , Manuel Curado , Francisco Escolano , Marcello Pelillo

Szemer\'edi's regularity lemma is a fundamental tool in extremal combinatorics. However, the original version is only helpful in studying dense graphs. In the 1990s, Kohayakawa and R\"odl proved an analogue of Szemer\'edi's regularity lemma…

组合数学 · 数学 2015-10-26 David Conlon , Jacob Fox , Yufei Zhao

A method for compression of large graphs and matrices to a block structure is further developed. Szemer\'edi's regularity lemma is used as a generic motivation of the significance of stochastic block models. Another ingredient of the method…

信息论 · 计算机科学 2017-11-27 Hannu Reittu , Ilkka Norros , Fülöp Bazsó

Kolla and Tulsiani [KT07,Kolla11} and Arora, Barak and Steurer [ABS10] introduced the technique of subspace enumeration, which gives approximation algorithms for graph problems such as unique games and small set expansion; the running time…

数据结构与算法 · 计算机科学 2012-12-11 Shayan Oveis Gharan , Luca Trevisan

A method for compression of large graphs and non-negative matrices to a block structure is proposed. Szemer\'edi's regularity lemma is used as heuristic motivation of the significance of stochastic block models. Another ingredient of the…

信息论 · 计算机科学 2019-08-14 Hannu Reittu , Fülöp Bazsó , Ilkka Norros

Szemer\'edi's regularity lemma and its variants are some of the most powerful tools in combinatorics. In this paper, we establish several results around the regularity lemma. First, we prove that whether or not we include the condition that…

组合数学 · 数学 2019-04-12 Jacob Fox , László Miklós Lovász , Yufei Zhao

We introduce a regularity method for sparse graphs, with new regularity and counting lemmas which use the Schatten-von-Neumann norms to measure uniformity. This leads to $k$-cycle removal lemmas in subgraphs of mildly-pseudorandom graphs,…

组合数学 · 数学 2023-05-16 Alexandru Pascadi

In graph theory, the Szemer\'edi regularity lemma gives a decomposition of the indicator function for any graph $G$ into a structured component, a uniform part, and a small error. This result, in conjunction with a counting lemma that…

组合数学 · 数学 2018-11-22 Sammy Luo

The Szemer\'edi Regularity Lemma, in combination with the Blow-up Lemma, form the Regularity Method, a fundamental tool in graph embeddings, albeit restricted to very large and dense graphs. We propose an alternative vertex-partitioning…

组合数学 · 数学 2026-05-26 Béla Csaba

We present a general method of designing fast approximation algorithms for cut-based minimization problems in undirected graphs. In particular, we develop a technique that given any such problem that can be approximated quickly on trees,…

数据结构与算法 · 计算机科学 2010-11-09 Aleksander Madry

Szemeredi's Regularity Lemma is a very useful tool of extremal combinatorics. Recently, several refinements of this seminal result were obtained for special, more structured classes of graphs. We survey these results in their rich…

We show an improved parallel algorithm for decomposing an undirected unweighted graph into small diameter pieces with a small fraction of the edges in between. These decompositions form critical subroutines in a number of graph algorithms.…

数据结构与算法 · 计算机科学 2013-07-16 Gary L. Miller , Richard Peng , Shen Chen Xu

We develop a new method for constructing approximate decompositions of dense graphs into sparse graphs and apply it to longstanding decomposition problems. For instance, our results imply the following. Let $G$ be a quasi-random $n$-vertex…

组合数学 · 数学 2017-09-28 Jaehoon Kim , Daniela Kühn , Deryk Osthus , Mykhaylo Tyomkyn

A locally irregular graph is a graph whose adjacent vertices have distinct degrees, a regular graph is a graph where each vertex has the same degree and a locally regular graph is a graph where for every two adjacent vertices u, v, their…

离散数学 · 计算机科学 2018-01-30 Arash Ahadi , Ali Dehghan , Mohammad-Reza Sadeghi , Brett Stevens

Given a sufficiently large and sufficiently dense bipartite graph $G=(A, B; E),$ we present a novel method for decomposing the majority of the edges of $G$ into quasirandom graphs so that the vertex sets of these quasirandom graphs…

组合数学 · 数学 2021-09-28 Béla Csaba
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