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| 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
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.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Quinlan, Jose J. | Hombre |
Pontificia Universidad Católica de Chile - Chile
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| 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 |
| 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 CientÃfica y Tecnológica |
| Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
| FONDECYT grant |
| Ministry of Economy, Development, and Tourism |
| CONICYT through Fondecyt Grant |
| CONACyT Grant |
| Consejo Nacional de Ciencia y TecnologÃa, 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" |
| 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?. |