Results 31 to 40 of about 35,950 (265)

Ollivier-Ricci curvature convergence in random geometric graphs

open access: yesPhysical Review Research, 2021
Connections between continuous and discrete worlds tend to be elusive. One example is curvature. Even though there exist numerous nonequivalent definitions of graph curvature, none is known to converge in any limit to any traditional definition of ...
Pim van der Hoorn   +4 more
doaj   +1 more source

Edge-Removal and Non-Crossing Configurations in Geometric Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2010
Graphs and ...
Oswin Aichholzer   +7 more
doaj   +1 more source

Generalised resilience models for power systems and dependent infrastructure during extreme events

open access: yesIET Smart Grid, 2019
This study presents a generalised critical infrastructures resilience model for extreme events with a focus on power grids. Infrastructures are modelled as three domains – physical, cyber, and human.
Vaidyanathan Krishnamurthy   +5 more
doaj   +1 more source

Geometric Random Graphs on Circles [PDF]

open access: yes, 2021
14 pages, 1 figure.
Angel, Omer, Spinka, Yinon
openaire   +2 more sources

Dynamic FastMap: An Efficient Algorithm for Spatiotemporal Embedding of Dynamic Graphs

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2023
Efficiently embedding graphs in a Euclidean space has many benefits: It allows us to interpret and solve graph-theoretic problems using geometric and analytical methods.
Omkar Thakoor, T. K. Satish Kumar
doaj   +1 more source

Minimal Graphs with Respect to Geometric Distance Realizability

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A graph G is minimal non-unit-distance graph if there is no drawing of G in Euclidean plane having all edges of unit length, but, for each edge e of G, G − e has such a drawing.
Madaras Tomáš, Široczki Pavol
doaj   +1 more source

The Geometric Index of the Wheel, Wn

open access: yesDavao Research Journal, 1998
The geometric index of a graph G is defined as the smallest non-negative integer n such that a graph G is a unit graph in r. Graphs considered are finite, undirected, without loops nor multiple edges.
Rowena Baylon
doaj   +1 more source

Directed random geometric graphs: structural and spectral properties

open access: yesJournal of Physics: Complexity, 2022
In this work we analyze structural and spectral properties of a model of directed random geometric graphs: given n vertices uniformly and independently distributed on the unit square, a directed edge is set between two vertices if their distance is ...
Kevin Peralta-Martinez   +1 more
doaj   +1 more source

Generalized Permutants and Graph GENEOs

open access: yesMachine Learning and Knowledge Extraction, 2023
This paper is part of a line of research devoted to developing a compositional and geometric theory of Group Equivariant Non-Expansive Operators (GENEOs) for Geometric Deep Learning. It has two objectives. The first objective is to generalize the notions
Faraz Ahmad   +2 more
doaj   +1 more source

On Statistical Properties of a New Family of Geometric Random Graphs

open access: yesEngineering Proceedings
We define a new family of random geometric graphs which we call random covering graphs and study its statistical properties. To the best of our knowledge, this family of graphs has not been explored in the past.
Kedar Joglekar   +2 more
doaj   +1 more source

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