A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/9794 |
Resumo: | Methods for the detection and inference of irregularly shaped geographic clusters with count data are important tools in disease surveillance and epidemiology. Recently, several methods were developed which combine Kulldorff’s Spatial Scan Statistic with some penalty function to control the excessive freedom of shape of spatial clusters. Different penalty functions were conceived based on the cluster geometric shape or on the adjacency structure and non-connectivity of the cluster associated graph. Those penalty function were also implemented using the framework of multi-objective optimization methods. In particular, the non-connectivity penalty was shown to be very effective in cluster detection. Basically, the non-connectivity penalty function relies on the adjacency structure of the cluster’s associated graph but it does not take into account the population distribution within the cluster. Here we introduce a modification of the non-connectivity penalty function, introducing weights in the components of the penalty function according to the cluster population distribution. Our methods is able to identify multiple clusters in the study area. We show through numerical simulations that our weighted non-connectivity penalty function outperforms the original non-connectivity function in terms of power of detection, sensitivity and positive predictive value, also being computationally fast. Both single-objective and multi-objective versions of the algorithm are implemented and compared. |
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Duarte, Anderson RibeiroSilva, Spencer Barbosa daOliveira, Fernando Luiz Pereira deRibeiro, Marcelo CarlosCançado, André Luiz FernandesMoura, Flávio dos Reis2018-04-02T14:24:37Z2018-04-02T14:24:37Z2017DUARTE, A. R. et al. A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. Revista Brasileira de Biometria, v. 35, p. 160-173, n. 2017. Disponível em: <http://www.biometria.ufla.br/index.php/BBJ/article/view/124>. Acesso em: 16 jan. 2018.19830823http://www.repositorio.ufop.br/handle/123456789/9794Methods for the detection and inference of irregularly shaped geographic clusters with count data are important tools in disease surveillance and epidemiology. Recently, several methods were developed which combine Kulldorff’s Spatial Scan Statistic with some penalty function to control the excessive freedom of shape of spatial clusters. Different penalty functions were conceived based on the cluster geometric shape or on the adjacency structure and non-connectivity of the cluster associated graph. Those penalty function were also implemented using the framework of multi-objective optimization methods. In particular, the non-connectivity penalty was shown to be very effective in cluster detection. Basically, the non-connectivity penalty function relies on the adjacency structure of the cluster’s associated graph but it does not take into account the population distribution within the cluster. Here we introduce a modification of the non-connectivity penalty function, introducing weights in the components of the penalty function according to the cluster population distribution. Our methods is able to identify multiple clusters in the study area. We show through numerical simulations that our weighted non-connectivity penalty function outperforms the original non-connectivity function in terms of power of detection, sensitivity and positive predictive value, also being computationally fast. Both single-objective and multi-objective versions of the algorithm are implemented and compared.All content of Revista Brasileira de Biometria - UFLA, except where noted, is licensed under a Creative Commons 4.0 International. The journal uses for licensing the transfer of rights Creative commons attribution 3.0 to open access journals Open Archives Iniciative - OAI -, categoria green road. Fonte: Revista Brasileira de Biometria - UFLA <http://www.biometria.ufla.br/index.php/BBJ/about>. Acesso em: 10 jan. 2018.info:eu-repo/semantics/openAccessSpatial scan statisticIrregular clustersMulti-objective algorithmsCompactness FunctionA weighted non-connectivity penalty for detection and inference of irregularly shaped clusters.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/9794/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_WeightedNonConnectivity.pdfARTIGO_WeightedNonConnectivity.pdfapplication/pdf291984http://www.repositorio.ufop.br/bitstream/123456789/9794/1/ARTIGO_WeightedNonConnectivity.pdfc7632934f222c3e22ea1622ecf04aa4cMD51123456789/97942018-04-02 10:24:37.607oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332018-04-02T14:24:37Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
title |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
spellingShingle |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. Duarte, Anderson Ribeiro Spatial scan statistic Irregular clusters Multi-objective algorithms Compactness Function |
title_short |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
title_full |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
title_fullStr |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
title_full_unstemmed |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
title_sort |
A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. |
author |
Duarte, Anderson Ribeiro |
author_facet |
Duarte, Anderson Ribeiro Silva, Spencer Barbosa da Oliveira, Fernando Luiz Pereira de Ribeiro, Marcelo Carlos Cançado, André Luiz Fernandes Moura, Flávio dos Reis |
author_role |
author |
author2 |
Silva, Spencer Barbosa da Oliveira, Fernando Luiz Pereira de Ribeiro, Marcelo Carlos Cançado, André Luiz Fernandes Moura, Flávio dos Reis |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Duarte, Anderson Ribeiro Silva, Spencer Barbosa da Oliveira, Fernando Luiz Pereira de Ribeiro, Marcelo Carlos Cançado, André Luiz Fernandes Moura, Flávio dos Reis |
dc.subject.por.fl_str_mv |
Spatial scan statistic Irregular clusters Multi-objective algorithms Compactness Function |
topic |
Spatial scan statistic Irregular clusters Multi-objective algorithms Compactness Function |
description |
Methods for the detection and inference of irregularly shaped geographic clusters with count data are important tools in disease surveillance and epidemiology. Recently, several methods were developed which combine Kulldorff’s Spatial Scan Statistic with some penalty function to control the excessive freedom of shape of spatial clusters. Different penalty functions were conceived based on the cluster geometric shape or on the adjacency structure and non-connectivity of the cluster associated graph. Those penalty function were also implemented using the framework of multi-objective optimization methods. In particular, the non-connectivity penalty was shown to be very effective in cluster detection. Basically, the non-connectivity penalty function relies on the adjacency structure of the cluster’s associated graph but it does not take into account the population distribution within the cluster. Here we introduce a modification of the non-connectivity penalty function, introducing weights in the components of the penalty function according to the cluster population distribution. Our methods is able to identify multiple clusters in the study area. We show through numerical simulations that our weighted non-connectivity penalty function outperforms the original non-connectivity function in terms of power of detection, sensitivity and positive predictive value, also being computationally fast. Both single-objective and multi-objective versions of the algorithm are implemented and compared. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2018-04-02T14:24:37Z |
dc.date.available.fl_str_mv |
2018-04-02T14:24:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
DUARTE, A. R. et al. A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. Revista Brasileira de Biometria, v. 35, p. 160-173, n. 2017. Disponível em: <http://www.biometria.ufla.br/index.php/BBJ/article/view/124>. Acesso em: 16 jan. 2018. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/9794 |
dc.identifier.issn.none.fl_str_mv |
19830823 |
identifier_str_mv |
DUARTE, A. R. et al. A weighted non-connectivity penalty for detection and inference of irregularly shaped clusters. Revista Brasileira de Biometria, v. 35, p. 160-173, n. 2017. Disponível em: <http://www.biometria.ufla.br/index.php/BBJ/article/view/124>. Acesso em: 16 jan. 2018. 19830823 |
url |
http://www.repositorio.ufop.br/handle/123456789/9794 |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
instname_str |
Universidade Federal de Ouro Preto (UFOP) |
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UFOP |
institution |
UFOP |
reponame_str |
Repositório Institucional da UFOP |
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Repositório Institucional da UFOP |
bitstream.url.fl_str_mv |
http://www.repositorio.ufop.br/bitstream/123456789/9794/2/license.txt http://www.repositorio.ufop.br/bitstream/123456789/9794/1/ARTIGO_WeightedNonConnectivity.pdf |
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Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
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repositorio@ufop.edu.br |
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