Results 31 to 40 of about 2,166 (199)

Improving Graph Neural Network Expressivity via Subgraph Isomorphism Counting

open access: yes, 2021
While Graph Neural Networks (GNNs) have achieved remarkable results in a variety of applications, recent studies exposed important shortcomings in their ability to capture the structure of the underlying graph. It has been shown that the expressive power
Frasca, Fabrizio   +3 more
core   +1 more source

Graph Isomorphic Networks for Assessing Reliability of the Medium-Voltage Grid

open access: yesCoRR, 2023
Ensuring electricity grid reliability becomes increasingly challenging with the shift towards renewable energy and declining conventional capacities. Distribution System Operators (DSOs) aim to achieve grid reliability by verifying the n-1 principle, ensuring continuous operation in case of component failure.
Charlotte Cambier van Nooten   +5 more
openaire   +2 more sources

Fault line selection algorithm for distribution networks based on AdapGL‐GIN network

open access: yesIET Generation, Transmission & Distribution, 2023
When a grounding fault occurs in the distribution network with distributed generation, the network topology becomes intricate, making it challenging to extract fault characteristics, resulting in a decrease in the precision of fault discrimination.
Tong Lu, Sizu Hou, Yan Xu
doaj   +1 more source

Remarks on the Reachability Graphs of Petri Nets

open access: yesМоделирование и анализ информационных систем, 2022
The question is considered - which graphs are isomorphic to the reachability graphs of Petri nets. Reachability graphs, or sets of achievable states, represent sets of all possible different network states resulting from a given initial state s0 by a ...
Yuriy Anatol’yevich Belov
doaj   +1 more source

Total Minimal Dominating Signed Graph [PDF]

open access: yes, 2010
Cartwright and Harary considered graphs in which vertices represent persons and the edges represent symmetric dyadic relations amongst persons each of which designated as being positive or negative according to whether the nature of the relationship is ...
Reddy, Siva Kota, Vijay, S.
core   +1 more source

Argumentation Reasoning with Graph Isomorphism Networks for Reddit Conversation Analysis

open access: yesInternational Journal of Computational Intelligence Systems, 2022
AbstractThe automated analysis of different trends in online debating forums is an interesting tool for sampling the agreement between citizens in different topics. In previous work, we have defined computational models to measure different values in these online debating forums.
Teresa Alsinet   +4 more
openaire   +2 more sources

A (Sub)graph Isomorphism Identification Theorem

open access: yes, 2022
It is generally accepted that graphs are natural representations of the relationships between items in complex systems, such as social networks, chemical compounds, and biological structures.
Mengjiao Guo (6738158)
core   +1 more source

Planar Graphs under Pythagorean Fuzzy Environment

open access: yesMathematics, 2018
Graph theory plays a substantial role in structuring and designing many problems. A number of structural designs with crossings can be found in real world scenarios. To model the vagueness and uncertainty in graphical network problems, many extensions of
Muhammad Akram   +2 more
doaj   +1 more source

The (a,b)-Zagreb index of some derived networks

open access: yesJournal of Taibah University for Science, 2019
There is a very wide application of mathematics in communication theory, signal processing and networking. A network is formed by nodes communicating with each other. Graph theory plays a vital role in the area of networking research. A topological index
Prosanta Sarkar   +3 more
doaj   +1 more source

Structural Relationship of Isomorphic Graph and its Mapping to Hamming Distance [PDF]

open access: yesEPJ Web of Conferences
Mapping graph isomorphism to Hamming distance enables a simple yet effective approach to quantifying structural similarity. By encoding graphs as binary adjacency vectors—flattened from the upper triangle of the adjacency matrix—structural comparisons ...
Tiwari Monika   +3 more
doaj   +1 more source

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