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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2021.tde-24022021-164949
Document
Author
Full name
Felipe Castro de Britto
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2021
Supervisor
Committee
Leonardi, Florencia Graciela (President)
Cerqueira, Andressa
Fujita, André
Title in English
Community detection in graphs
Keywords in English
Community detection
Fundamental limits
Stochastic Block Model
Abstract in English
The Stochastic Block Model (SBM), is one of the most famous models of graphs with community structure, due to its facility in simulating several different structures. In this work,an introduction to community detection in the SBM model is made, to different approaches to this detection, and conditions to obtain consistency in the detection of communities. An application of these strategies, or algorithms, is also made to know under which conditions,or regimes, also known as fundamental limits, these algorithms have good results, in simulated graphs with different regimes.
Title in Portuguese
Detecção de comunidades em grafos
Keywords in Portuguese
Detecção de comunidades
Limites fundamentais
Modelo Estocástico de Blocos
Abstract in Portuguese
O Modelo Estocástico de Blocos (SBM), do inglês Stochastic Block Model, é um dos modelos mais famosos de grafos com estrutura de comunidades, devido a sua facilidade em simular diversas estruturas diferentes. Neste trabalho é feita uma introdução a detecção decomunidades no modelo SBM, diferentes estratégias para essa detecção, e condições para que se obtenha consistência na detecção de comunidades. É feita também uma aplicação dessas estratégias, ou algoritmos, para saber sob quais condições, ou regimes, também conhecido como limites fundamentais, esses algoritmos obtém bons resultados, em grafos simulados com diferentes regimes.
 
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DissFelipeB.pdf (915.35 Kbytes)
Publishing Date
2021-03-02
 
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