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Previous issue date: 2017-02-21 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / In 1946, Heider developed Signal Graph Theory with the purpose of describing the emotional
relationships between people pertaining to the same social group. In this work, we study
graph partitioning problems associated with structural balance. These problems are known in
the computer science literature as partition correlation problems: correlation clustering (CC)
and a relaxed version (RCC). The solution of CC and RCC problems has been previously
used in the literature as a tool for the evaluation of structural balance in a social network.
The aim of this work is to apply the solution of these problems in the detection of corruption
in public contracts. We describe integer linear programming formulations from the literature
for these problems. We also discuss a probabilistic model for Structural balance and the
solution of these problems applied to the detection of cases of corruption existing in public
bids. / Em 1946, Heider desenvolveu a Teoria de Grafos de Sinais a fim de descrever as rela??es
emocionais entre as pessoas pertencentes ao mesmo grupo social. Neste trabalho, estudamos
problemas de particionamento de grafo associados com equil?brio estrutural, que na literatura
de Ci?ncia da Computa??o s?o conhecidos como problemas de correla??o de parti??es ou,
em ingl?s, correlation clustering (CC), al?m de uma vers?o relaxada (RCC). As solu??es
dos problemas CC e RCC foram anteriormente utilizadas na literatura como ferramentas
para a avalia??o de equil?brio estrutural numa rede social. O objetivo deste trabalho ? aplicar
as solu??es destes problemas na detec??o de corrup??o em contratos p?blicos. Para esse fim,
s?o utilizadas formula??es de programa??o linear inteira existentes na literatura para estes
problemas. Al?m disso, ? discutido tamb?m um modelo probabil?stico para o Equil?brio
Estrutural e as solu??es destes problemas s?o aplicadas ? detec??o de casos de corrup??es
existentes em licita??es p?blicas.
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:jspui/2386 |
| Date | 21 February 2017 |
| Creators | Ponciano, Vitor dos Santos |
| Contributors | Greg?rio, Ronaldo Malheiros, Figueiredo, Rosa Maria Videira de, Cruz, Marcelo Dib, Frota, Yuri Abitbol de Menezes |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Programa de P?s-Gradua??o em Modelagem Matem?tica e Computacional, UFRRJ, Brasil, Instituto de Ci?ncias Exatas |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
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