Results 31 to 40 of about 14,658 (182)

Even order uniform hypergraph via the Einstein product

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
We propose the algebraic connectivity of an undirected 2m-uniform hypergraph under the Einstein product. We generalize the algebraic connectivity to a directed 2m-uniform hypergraph and reveal the relationship between the vertex connectivity and the ...
Jiaqi Gu, Yimin Wei
doaj   +1 more source

Characterizing the hypergraph-of-entity and the structural impact of its extensions

open access: yesApplied Network Science, 2020
The hypergraph-of-entity is a joint representation model for terms, entities and their relations, used as an indexing approach in entity-oriented search.
José Devezas, Sérgio Nunes
doaj   +1 more source

Algebraic structures and lattice properties of hypergraph Pre-Rough sets‎ [PDF]

open access: yesMathematics and Computational Sciences
The study introduces and examines the concept of hypergraph pre-rough sets, which are developed by combining minimum soft descriptions with hypergraph structures.
Ganesan Gomathi   +3 more
doaj   +1 more source

Uniform hypergraphs containing no grids [PDF]

open access: yes, 2013
A hypergraph is called an r×r grid if it is isomorphic to a pattern of r horizontal and r vertical lines, i.e.,a family of sets {A1, ..., Ar, B1, ..., Br} such that Ai∩Aj=Bi∩Bj=φ for 1 ...
Füredi, Zoltán, Ruszinkó, Miklós
core   +1 more source

Neighborhood Hypergraph Partitioning for Image Segmentation

open access: yes, 2005
International audienceThe aim of this paper is to introduce a multilevel neighborhoodhypergraph partitioning for image segmentation. Our proposedapproach uses the image neighborhood hypergraph model introduced inour last works and the algorithm of ...
Miguet, Serge   +2 more
core   +5 more sources

The Average Tree value for Hypergraph Games [PDF]

open access: yes, 2020
We consider transferable utility cooperative games (TU games) with limited cooperation introduced by hypergraph communication structure, the so-called hypergraph games.
Zhang, Guang   +6 more
core   +2 more sources

Almost Self-Complementary Uniform Hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
A k-uniform hypergraph (k-hypergraph) is almost self-complementary if it is isomorphic with its complement in the complete k-uniform hypergraph minus one edge. We prove that an almost self-complementary k-hypergraph of order n exists if and only if (nk)$\
Wojda Adam Paweł
doaj   +1 more source

Individual Differences in Dynamic Functional Brain Connectivity across the Human Lifespan. [PDF]

open access: yesPLoS Computational Biology, 2016
Individual differences in brain functional networks may be related to complex personal identifiers, including health, age, and ability. Dynamic network theory has been used to identify properties of dynamic brain function from fMRI data, but the majority
Elizabeth N Davison   +6 more
doaj   +1 more source

Prediction of Graduation Development Based on Hypergraph Contrastive Learning With Imbalanced Sampling

open access: yesIEEE Access, 2023
With the increasingly competitive job market, the employment issue for college graduates has received more and more attention. Predicting graduation development can help students understand their suitable graduation development, thus easing the pressure ...
Yong Ouyang   +4 more
doaj   +1 more source

Hypernetwork science via high-order hypergraph walks

open access: yesEPJ Data Science, 2020
We propose high-order hypergraph walks as a framework to generalize graph-based network science techniques to hypergraphs. Edge incidence in hypergraphs is quantitative, yielding hypergraph walks with both length and width.
Sinan G. Aksoy   +4 more
doaj   +1 more source

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