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Identifying and characterizing unmaintained projects in GitHub

Detalhes bibliográficos
Ano de defesa: 2019
Autor(a) principal: Jailton Junior de Sousa Coelho
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: eng
Instituição de defesa: Universidade Federal de Minas Gerais
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Link de acesso: https://hdl.handle.net/1843/31230
Resumo: CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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spelling 2019-11-22T18:18:10Z2025-09-09T00:30:07Z2019-11-22T18:18:10Z2019-08-30https://hdl.handle.net/1843/31230CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorengUniversidade Federal de Minas GeraisUnmaintained ProjectsGitHubOpen Source SoftwareIdentifying and characterizing unmaintained projects in GitHubIdentifying and characterizing unmaintained projects in GitHubinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisJailton Junior de Sousa Coelhoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGhttp://lattes.cnpq.br/4200945082406578Marco Túlio de Oliveira Valentehttp://lattes.cnpq.br/2147157840592913Open source projects are key components of modern software development. Due to the appearance of novel platforms (e.g., GitHub and GitLab) for developing public code, developers has created thousands of open source projects. As a consequence, a significant number of open source projects is also unmaintained. To tackle this problem, in this thesis, we reported a set of quantitative and qualitative studies to help developers to maintain their open source projects. First, we surveyed the owners of open source projects that are no longer actively maintained, aiming to reveal the reasons for stop the maintenance of their projects. As result, we provide a set of nine reasons that motivated them to abandon their projects. Second, we conducted a survey with developers who recently became core contributors of popular GitHub projects. We reveal their motivations to contribute to these projects, the projects characteristics that mostly helped to contribute, and the barriers faced by them. Our key results show that the surveyed developers contributed to the projects because they are using them and need some improvements. The participants also answered that the lack of time of the project leaders was the principal barrier faced by them. Finally, the project characteristic which mostly helped them to contribute was the existence of a friendly community. Finally, in our third study, we propose a quantitative and datadriven model to identify GitHub projects that are not actively maintained. We train the model using a set of 13 features about project activity (e.g., commits, forks, and issues). The model achieved a precision of 80%, based on the feedback of 129 real open source developers and a recall of 96%. We also showed that the model can be used to identify unmaintained projects early, without having to wait for one year of inactivity, as commonly proposed in the literature. Finally, we defined a metric, called Level of Maintenance Activity (LMA), to assess the risks of projects become unmaintained. We provided evidence on the applicability of this metric, by investigating its usage in 2,927 active projects.BrasilPrograma de Pós-Graduação em Ciência da ComputaçãoUFMGORIGINALThesis-JailtonCoelho.pdfapplication/pdf2689428https://repositorio.ufmg.br//bitstreams/f154f9a2-d7dc-45cb-a9cc-9c3eccd85e67/downloada34a6ea35bc593271a5f34f188caf84bMD51trueAnonymousREADLICENSElicense.txttext/plain2119https://repositorio.ufmg.br//bitstreams/92223676-3e34-4cec-bbfd-c28c380687fe/download34badce4be7e31e3adb4575ae96af679MD52falseAnonymousREADTEXTThesis-JailtonCoelho.pdf.txttext/plain235643https://repositorio.ufmg.br//bitstreams/23cb4e42-abb6-4b24-9f00-d2115a3d75cd/downloadd4eba14dc95f6c71cd0e77a36f4957f4MD53falseAnonymousREAD1843/312302025-09-08 21:30:07.598open.accessoai:repositorio.ufmg.br:1843/31230https://repositorio.ufmg.br/Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oairepositorio@ufmg.bropendoar:2025-09-09T00:30:07Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)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
dc.title.none.fl_str_mv Identifying and characterizing unmaintained projects in GitHub
dc.title.alternative.none.fl_str_mv Identifying and characterizing unmaintained projects in GitHub
title Identifying and characterizing unmaintained projects in GitHub
spellingShingle Identifying and characterizing unmaintained projects in GitHub
Jailton Junior de Sousa Coelho
Unmaintained Projects
GitHub
Open Source Software
title_short Identifying and characterizing unmaintained projects in GitHub
title_full Identifying and characterizing unmaintained projects in GitHub
title_fullStr Identifying and characterizing unmaintained projects in GitHub
title_full_unstemmed Identifying and characterizing unmaintained projects in GitHub
title_sort Identifying and characterizing unmaintained projects in GitHub
author Jailton Junior de Sousa Coelho
author_facet Jailton Junior de Sousa Coelho
author_role author
dc.contributor.author.fl_str_mv Jailton Junior de Sousa Coelho
dc.subject.other.none.fl_str_mv Unmaintained Projects
GitHub
Open Source Software
topic Unmaintained Projects
GitHub
Open Source Software
description CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-11-22T18:18:10Z
2025-09-09T00:30:07Z
dc.date.available.fl_str_mv 2019-11-22T18:18:10Z
dc.date.issued.fl_str_mv 2019-08-30
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1843/31230
url https://hdl.handle.net/1843/31230
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.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
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reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
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