Results 11 to 20 of about 34,352 (308)

Graph Invariant Kernels. [PDF]

open access: yes, 2015
We introduce a novel kernel that upgrades the Weisfeiler-Lehman and other graph kernels to effectively exploit high dimensional and continuous vertex attributes. Graphs are first decomposed into subgraphs. Vertices of the subgraphs are then compared by a kernel that combines the similarity of their labels and the similarity of their structural role ...
Francesco Orsini   +2 more
core   +6 more sources

The G-Invariant Graph Laplacian [PDF]

open access: yes, 2023
Graph Laplacian based algorithms for data lying on a manifold have been proven effective for tasks such as dimensionality reduction, clustering, and denoising. In this work, we consider data sets whose data points lie on a manifold that is closed under the action of a known unitary matrix Lie group G.
Rosen, Eitan   +4 more
openaire   +3 more sources

On Transmission Irregular Cubic Graphs of an Arbitrary Order

open access: yesMathematics, 2022
The transmission of a vertex v of a graph G is the sum of distances from v to all the other vertices of G. A transmission irregular graph (TI graph) has mutually distinct vertex transmissions.
Anatoly Yu. Bezhaev, Andrey A. Dobrynin
doaj   +1 more source

Total Domination in Generalized Prisms and a New Domination Invariant

open access: yesDiscussiones Mathematicae Graph Theory, 2021
In this paper we complement recent studies on the total domination of prisms by considering generalized prisms, i.e., Cartesian products of an arbitrary graph and a complete graph.
Tepeh Aleksandra
doaj   +1 more source

Radius-invariant graphs [PDF]

open access: yesMathematica Bohemica, 2004
Summary: The eccentricity \(e(v)\) of a vertex \(v\) is defined as the distance to a farthest vertex from \(v\). The radius of a graph \(G\) is defined as \(r(G)=\min _{u \in V(G)}\{ e(u)\}\). A graph \(G\) is radius-edge-invariant if \(r(G-e)=r(G)\) for every \(e \in E(G)\), radius-vertex-invariant if \(r(G-v)= r(G)\) for every \(v \in V(G)\) and ...
Bálint, V., Vaček, O.
openaire   +2 more sources

Best Graph Type to Compare Discrete Groups: Bar, Dot, and Tally

open access: yesFrontiers in Psychology, 2021
Different graph types might differ in group comparison due to differences in underlying graph schemas. Thus, this study examined whether graph schemas are based on perceptual features (i.e., each graph has a specific schema) or common invariant ...
Fang Zhao, Robert Gaschler
doaj   +1 more source

Some Applications of Strong Product [PDF]

open access: yesMathematics Interdisciplinary Research, 2018
Let G and H be graphs. The strong product GH of graphs G and H is the graph with vertex set V(G)V(H) and u=(u1, v1) is adjacent with v= (u2, v2) whenever (v1 = v2 and u1 is adjacent with u2) or (u1 = u2 and v1 is adjacent with v2) or (u1 is adjacent ...
Mostafa Tavakoli   +2 more
doaj   +1 more source

Algorithms for computing normally hyperbolic invariant manifolds [PDF]

open access: yes, 1997
An effcient algorithm is developed for the numerical computation of normally hyperbolic invariant manifolds, based on the graph transform and Newton's method.
Vegter, G.,   +10 more
core   +1 more source

Intersection dimension and graph invariants

open access: yesDiscussiones Mathematicae Graph Theory, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aravind N.R., Subramanian C.R.
openaire   +4 more sources

On the reconstruction of graph invariants [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2009
The reconstruction conjecture has remained open for simple undirected graphs since it was suggested in 1941 by Kelly and Ulam. In an attempt to prove the conjecture, many graph invariants have been shown to be reconstructible from the vertex-deleted deck, and in particular, some prominent graph polynomials.
openaire   +2 more sources

Home - About - Disclaimer - Privacy