Results 1 to 10 of about 55,078 (168)

Faithfulness in chain graphs: The discrete case

open access: yesInternational Journal of Approximate Reasoning, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
JOSÉ M Pena
exaly   +2 more sources

On the Discrete Fréchet Distance in a Graph [PDF]

open access: yesCoRR, 2022
The Fréchet distance is a well-studied similarity measure between curves that is widely used throughout computer science. Motivated by applications where curves stem from paths and walks on an underlying graph (such as a road network), we define and study the Fréchet distance for paths and walks on graphs.
Anne Driemel   +2 more
openaire   +4 more sources

Discrete Optimal Graph Clustering [PDF]

open access: yesIEEE Transactions on Cybernetics, 2020
Graph based clustering is one of the major clustering methods. Most of it work in three separate steps: similarity graph construction, clustering label relaxing and label discretization with k-means. Such common practice has three disadvantages: 1) the predefined similarity graph is often fixed and may not be optimal for the subsequent clustering.
Yudong Han   +4 more
openaire   +3 more sources

Fundamental Groupoids for Graphs [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2022
In recent years several notions of discrete homotopy for graphs have been introduced, including a notion of ×-homotopy due to Dochtermann. In this paper, we define a ×-homotopy fundamental groupoid for graphs, and prove that it is a functorial ×-homotopy
Tien Chih, Laura Scull
doaj   +1 more source

Discrete Graph Auto-Encoder

open access: yesTrans. Mach. Learn. Res., 2023
Thoroughly revised the paper originally titled "Vector-Quantized Graph Auto-Encoder. Implemented comprehensive modifications across all sections. Incorporated additional experiments to enhance the study. Maintained the fundamental structure and essence of the original work, ensuring it remains a continuation of the same ...
Yoann Boget   +2 more
openaire   +3 more sources

Spatio–Spectral Limiting on Replacements of Tori by Cubes

open access: yesMathematics, 2023
A class of graphs is defined in which each vertex of a discrete torus is replaced by a Boolean hypercube in such a way that vertices in a fixed subset of each replacement cube are adjacent to corresponding vertices of a neighboring replacement cube ...
Jeffrey A. Hogan, Joseph D. Lakey
doaj   +1 more source

Domination in discrete topology graph [PDF]

open access: yesAIP Conference Proceedings, 2019
In this paper a graph of the discrete topology under some conditions has been created. It is obtained from the composition of the topologies. The properties and domination number on the discrete topology graph have studied. On a modified graph through deleting or adding the vertex, the affection discrete topological graph domination parameter is ...
Jabor, Ali Ameer, Omran, Ahmed Abd Ali
openaire   +2 more sources

Discrete embedding for attributed graphs

open access: yesPattern Recognition, 2022
Abstract Attributed graphs refer to graphs where both node links and node attributes are observable for analysis. Attributed graph embedding enables joint representation learning of node links and node attributes. Different from classical graph embedding methods such as Deepwalk and node2vec that first project node links into low-dimensional vectors ...
Hong Yang 0003   +4 more
openaire   +2 more sources

Identification Conditions for the Solvability of NP-complete Problems for the Class of Pre-fractal Graphs

open access: yesМоделирование и анализ информационных систем, 2021
Modern network systems (unmanned aerial vehicles groups, social networks, network production chains, transport and logistics networks, communication networks, cryptocurrency networks) are distinguished by their multi-element nature and the dynamics of ...
Aleksandr Vasil'evich Tymoshenko   +2 more
doaj   +1 more source

On the use of graphs in discrete tomography [PDF]

open access: yesAnnals of Operations Research, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
de Werra, Dominique   +3 more
openaire   +5 more sources

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