Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| MCMC s chybějícími daty× | Bayesovský hierarchický model× | |
|---|---|---|
| Obor | Bayesovská statistika | Bayesovská statistika |
| Rodina | Bayesian methods | Bayesian methods |
| Rok vzniku≠ | 1987 | 2006 |
| Tvůrce≠ | Tanner & Wong (data augmentation); extended by Gelfand & Smith, Rubin | Gelman & Hill (2006); Bayesian multilevel tradition |
| Typ≠ | Bayesian computational method | hierarchical probabilistic model |
| Původní zdroj≠ | Little, R. J. A. & Rubin, D. B. (2002). Statistical Analysis with Missing Data (2nd ed.). Wiley. ISBN: 978-0471183860 | Gelman, A. & Hill, J. (2006). Data Analysis Using Regression and Multilevel/Hierarchical Models. Cambridge University Press. DOI ↗ |
| Další názvy≠ | MCMC missing data, data augmentation MCMC, Bayesian multiple imputation, MCMC imputation | multilevel Bayes, Bayesian multilevel model, Bayesian HLM, partial pooling model |
| Příbuzné≠ | 6 | 4 |
| Shrnutí≠ | MCMC with missing data is a Bayesian computational strategy that treats unobserved values as additional unknown parameters. By alternating between sampling the missing values from their predictive distribution and sampling the model parameters from their posterior, the algorithm produces a valid joint posterior that fully accounts for uncertainty introduced by the missingness. | Bayesian hierarchical modelling, popularised by Gelman and Hill (2006), is a Bayesian approach to nested data structures — such as students within schools within districts — that estimates separate parameters at each level while allowing those levels to share statistical strength through a mechanism called partial pooling. Where a classical hierarchical linear model treats group means as fixed unknown quantities, the Bayesian version places hyperprior distributions on those group means so that information flows freely across levels, producing more reliable group-level estimates whenever any individual group has few observations. |
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