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On a class of repulsive mixture models
Indexado
WoS WOS:000551400200001
Scopus SCOPUS_ID:85088459446
DOI 10.1007/S11749-020-00726-Y
Año 2021
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Finite or infinite mixture models are routinely used in Bayesian statistical practice for tasks such as clustering or density estimation. Such models are very attractive due to their flexibility and tractability. However, a common problem in fitting these or other discrete models to data is that they tend to produce a large number of overlapping clusters. Some attention has been given in the statistical literature to models that include a repulsive feature, i.e., that encourage separation of mixture components. We study here a method that has been shown to achieve this goal without sacrificing flexibility or model fit. The model is a special case of Gibbs measures, with a parameter that controls the level of repulsion that allows construction ofd-dimensional probability densities whose coordinates tend to repel each other. This approach was successfully used for density regression in Quinlan et al. (J Stat Comput Simul 88(15):2931-2947, 2018). We detail some of the global properties of the repulsive family of distributions and offer some further insight by means of a small simulation study.

Revista



Revista ISSN
Test 1133-0686

Métricas Externas



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Disciplinas de Investigación



WOS
Statistics & Probability
Scopus
Statistics And Probability
Statistics, Probability And Uncertainty
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Quinlan, Jose J. Hombre Pontificia Universidad Católica de Chile - Chile
2 QUINTANA-OSORIO, FRANCISCO JAVIER Hombre Pontificia Universidad Católica de Chile - Chile
Millennium Nucleus Ctr Discovery Struct Complex D - Chile
Núcleo Milenio Centro para el Descubrimiento de Estructuras en Datos Complejos - Chile
Millennium Nucleus Center for the Discovery of Structures in Complex Data - Chile
3 Page, Garritt L. - Brigham Young Univ - Estados Unidos
Brigham Young University - Estados Unidos

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Financiamiento



Fuente
Consejo Nacional de Ciencia y Tecnología
Ministerio de Economía, Fomento y Turismo
Fondo Nacional de Desarrollo Científico y Tecnológico
Comisión Nacional de Investigación Científica y Tecnológica
Comisión Nacional de Investigación Científica y Tecnológica
Fondo Nacional de Desarrollo Científico y Tecnológico
FONDECYT grant
Ministry of Economy, Development, and Tourism
CONICYT through Fondecyt Grant
CONACyT Grant
Consejo Nacional de Ciencia y Tecnología, Paraguay
Millenium Nucleus Center
Millennium Science Initiative of the Ministry of Economy, Development, and Tourism, grant "Millenium Nucleus Center for the Discovery of Structures in Complex Data"

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
We thank the anonymous referees and the associated editor for valuable comments that greatly improved this work. Also, we'd like to thank Gregorio Moreno and Duvan Henao for helpful conversations and comments. Jose J. Quinlan gratefully recognizes the support provided by CONICYT through Fondecyt Grant 3190324 and CONACyT Grant 241195. Fernando A. Quintana was supported by Fondecyt Grant 1180034. This work was supported by Millennium Science Initiative of the Ministry of Economy, Development, and Tourism, grant "Millenium Nucleus Center for the Discovery of Structures in Complex Data".
We thank the anonymous referees and the associated editor for valuable comments that greatly improved this work. Also, we?d like to thank Gregorio Moreno and Duvan Henao for helpful conversations and comments. Jos? J. Quinlan gratefully recognizes the support provided by CONICYT through Fondecyt Grant 3190324 and CONACyT Grant 241195. Fernando A. Quintana was supported by Fondecyt Grant 1180034. This work was supported by Millennium Science Initiative of the Ministry of Economy, Development, and Tourism, grant ?Millenium Nucleus Center for the Discovery of Structures in Complex Data?.

Muestra la fuente de financiamiento declarada en la publicación.