Mapping a Co-competition Network of the Portuguese Public Procurement Market

Detalhes bibliográficos
Autor(a) principal: Silva, Gonçalo Baptista Perdigão
Data de Publicação: 2024
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/163658
Resumo: Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Data Science
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spelling Mapping a Co-competition Network of the Portuguese Public Procurement MarketPublic ProcurementNetwork AnalysisCo-competition NetworkPortugalClusteringCorruptionCommunity DetectionSDG 8 - Decent work and economic growthSDG 16 - Peace, justice and strong institutionsSDG 17 - Partnerships for the goalsDomínio/Área Científica::Ciências Naturais::Ciências da Computação e da InformaçãoDissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Data ScienceFraud in the public procurement sector is a persistent and challenging issue which can have harmful consequences in society, hindering economic and social growth, and corroding public trust in the government. This thesis aims to use network science methods to analyze and detect fraudulent activities by utilizing a Portuguese data set composed of thousands of public contracts between 2009 to 2023. The approach consists of utilizing the firms' co-occurring similarities to build a co-competition network and to detect communities of firms which are likely competitors and collaborators. With the aid of additional indicators such as activity diversity, regional diversity and single bidders, the characterization of the communities allows to emphasize groups of firms which are more probably engaging in illegal schemes such as collusion or market distortion. Furthermore, the work reinforces the efficiency of a network-based approach to unveil complex relationships, and in detecting and mitigating fraud. Finally, the findings and insights revealed in this study aim to aid in the development of fraud detection techniques and to provide a better understanding of the Portuguese public procurement environment.Pinheiro, Flávio Luís PortasDamásio, Bruno Miguel PintoRUNSilva, Gonçalo Baptista Perdigão2024-02-16T13:04:43Z2024-01-292024-01-29T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/163658TID:203518462enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:48:09Zoai:run.unl.pt:10362/163658Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:59:48.314209Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mapping a Co-competition Network of the Portuguese Public Procurement Market
title Mapping a Co-competition Network of the Portuguese Public Procurement Market
spellingShingle Mapping a Co-competition Network of the Portuguese Public Procurement Market
Silva, Gonçalo Baptista Perdigão
Public Procurement
Network Analysis
Co-competition Network
Portugal
Clustering
Corruption
Community Detection
SDG 8 - Decent work and economic growth
SDG 16 - Peace, justice and strong institutions
SDG 17 - Partnerships for the goals
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
title_short Mapping a Co-competition Network of the Portuguese Public Procurement Market
title_full Mapping a Co-competition Network of the Portuguese Public Procurement Market
title_fullStr Mapping a Co-competition Network of the Portuguese Public Procurement Market
title_full_unstemmed Mapping a Co-competition Network of the Portuguese Public Procurement Market
title_sort Mapping a Co-competition Network of the Portuguese Public Procurement Market
author Silva, Gonçalo Baptista Perdigão
author_facet Silva, Gonçalo Baptista Perdigão
author_role author
dc.contributor.none.fl_str_mv Pinheiro, Flávio Luís Portas
Damásio, Bruno Miguel Pinto
RUN
dc.contributor.author.fl_str_mv Silva, Gonçalo Baptista Perdigão
dc.subject.por.fl_str_mv Public Procurement
Network Analysis
Co-competition Network
Portugal
Clustering
Corruption
Community Detection
SDG 8 - Decent work and economic growth
SDG 16 - Peace, justice and strong institutions
SDG 17 - Partnerships for the goals
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
topic Public Procurement
Network Analysis
Co-competition Network
Portugal
Clustering
Corruption
Community Detection
SDG 8 - Decent work and economic growth
SDG 16 - Peace, justice and strong institutions
SDG 17 - Partnerships for the goals
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
description Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Data Science
publishDate 2024
dc.date.none.fl_str_mv 2024-02-16T13:04:43Z
2024-01-29
2024-01-29T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/163658
TID:203518462
url http://hdl.handle.net/10362/163658
identifier_str_mv TID:203518462
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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