Results 31 to 40 of about 1,361,107 (277)

Real Quadratic-Form-Based Graph Pooling for Graph Neural Networks

open access: yesMachine Learning and Knowledge Extraction, 2022
Graph neural networks (GNNs) have developed rapidly in recent years because they can work over non-Euclidean data and possess promising prediction power in many real-word applications.
Youfa Liu, Guo Chen
doaj   +1 more source

Permutational Powers of a Graph [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2019
This paper introduces a new graph construction, the permutational power of a graph, whose adjacency matrix is obtained by the composition of a permutation matrix with the adjacency matrix of the graph. It is shown that this construction recovers the classical zig-zag product of graphs when the permutation is an involution, and it is in fact more ...
Cavaleri, Matteo   +2 more
openaire   +3 more sources

SHACL-Based Validation Method of Knowledge Graph for Power System Model

open access: yesZhongguo dianli, 2022
With the expansion of the power grid and the high penetration of distributed energy resources, the power system analysis and decision-making have put forward higher requirements for comprehensive and accurate power grid models.
Xiaolu LI   +5 more
doaj   +1 more source

Average Degree in Graph Powers [PDF]

open access: yesJournal of Graph Theory, 2012
AbstractThe kth power of a simple graph G, denoted by , is the graph with vertex set where two vertices are adjacent if they are within distance k in G. We are interested in finding lower bounds on the average degree of . Here we prove that if G is connected with minimum degree and , then G4 has average degree at least .
DeVos, Matt   +2 more
openaire   +3 more sources

A network approach for power grid robustness against cascading failures [PDF]

open access: yes, 2015
Cascading failures are one of the main reasons for blackouts in electrical power grids. Stable power supply requires a robust design of the power grid topology.
Kooij, Robert E.   +3 more
core   +3 more sources

Power domination in Kn\"odel graphs and Hanoi graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Varghese, Seethu   +2 more
openaire   +3 more sources

Some Graph Polynomials of the Power Graph and its Supergraphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
‎In this paper‎, ‎exact formulas for the dependence‎, ‎independence‎, ‎vertex cover and clique polynomials of the power graph and its‎ ‎supergraphs for certain finite groups are presented‎.
Asma Hamzeh
doaj   +1 more source

Some Characterizations and NP-Complete Problems for Power Cordial Graphs

open access: yesJournal of Mathematics, 2023
A power cordial labeling of a graph G=VG,EG is a bijection f:VG⟶1,2,…,VG such that an edge e=uv is assigned the label 1 if fu=fvn or fv=fun, for some n∈N∪0 and the label 0 otherwise, and satisfy the number of edges labeled with 0 and the number of edges ...
C. M. Barasara, Y. B. Thakkar
doaj   +1 more source

Distribution-graph based approach and extended tree growing technique in power-constrained block-test scheduling [PDF]

open access: yes, 2000
A distribution-graph based scheduling algorithm is proposed together with an extended tree growing technique to deal with the problem of unequal-length block-test scheduling under power dissipation constraints. The extended tree growing technique is used
Muresan, Valentin   +3 more
core   +1 more source

Accessibility percolation on Cartesian power graphs

open access: yesJournal of Mathematical Biology, 2023
AbstractA fitness landscape is a mapping from a space of discrete genotypes to the real numbers. A path in a fitness landscape is a sequence of genotypes connected by single mutational steps. Such a path is said to be accessible if the fitness values of the genotypes encountered along the path increase monotonically. We study accessible paths on random
Benjamin Schmiegelt, Joachim Krug
openaire   +4 more sources

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