Results 81 to 90 of about 17,360 (200)

Searching for Similar Subgraphs in an Unweighted Undirected Graph by Computing Isomorphic Path Sets

open access: yesСовременные информационные технологии и IT-образование
The topic of subgraph search in a supergraph remains relevant and fundamental. Graphs are highly successful models for both visualization and handling complex relationships, such as those represented in semantic networks or even source code of programs ...
Valentin Sysoev, Aleksandr Bykov
doaj   +1 more source

Network Evolution With Mesoscopic Delays

open access: yesRandom Structures &Algorithms, Volume 67, Issue 2, September 2025.
ABSTRACT Owing to the influence of real‐world networks both in science and society, numerous mathematical models have been developed to understand the structure and evolution of these systems, particularly in a temporal context. Recent advancements in fields like distributed cyber‐security and social networks have spurred the creation of probabilistic ...
Sayan Banerjee   +3 more
wiley   +1 more source

Mapping Induced Subgraph Isomorphism Problems to Ising Models and Its Evaluations by an Ising Machine

open access: diamond, 2021
Natsuhito Yoshimura   +6 more
openalex   +2 more sources

OrbitSI: An Orbit-based algorithm for the subgraph isomorphism search problem

open access: yes2024 IEEE International Conference on Knowledge Graph (ICKG)
The Subgraph Isomorphism (SI) search problem searches for embeddings of a pattern graph within a data graph. Efficient heuristic algorithms for the SI search problem are often structured around a Depth-First Search (DFS) tree-based search to find matching subgraphs.
Tauhidi, Syed   +3 more
openaire   +4 more sources

The subgraph isomorphism problem

open access: yes, 2013
This thesis describes the problem of finding subgraph isomorphism. This is one of the most basic operations performed on graphs and is an NP-hard problem. We describe in detail the Ullmann algorithm and VF2 algorithm, the most commonly used and state-of-the art algorithms in this field, and a new algorithm called Subsea.
openaire   +1 more source

Homomorphic Preimages of Geometric Cycles

open access: yes, 2015
A graph G is a homomorphic preimage of another graph H, or equivalently G is H-colorable, if there exists a graph homomorphism from G to H. A classic problem is to characterize the family of homomorphic preimages of a given graph H.
Cockburn, Sally
core  

Fast parallel algorithms for the subgraph homeomorphism and the subgraph isomorphism problem for classes of planar graphs

open access: yes, 1987
We consider the problems of subgraph homeomorphism with fixed pattern graph, recognition, and subgraph isomorphism for some classes of planar graphs. Following the results of Robertson and Seymour on forbidden minor characterization, we show that the problems of fixed subgraph homeomorphism and recognition for any family of planar graphs closed under ...
Lingas, Andrzej, Proskurowski, Andrzej
openaire   +1 more source

Integration of subgraph isomorphism problem into ALGator system

open access: yes, 2015
This thesis deals with a subgraph isomorphism problem and its integration into ALGator system. Detection of isomorphic subgraph is present in many scientific fields nowadays, therefore new problem solving algorithms constantly appear. We focus on a detailed description of Ullmann algorithm, improved Ullmann algorithm and RI algorithm, the most recent
openaire   +1 more source

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