Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| MCMC para Séries Temporais× | Amostragem de Gibbs× | |
|---|---|---|
| Área | Bayesiano | Bayesiano |
| Família | Bayesian methods | Bayesian methods |
| Ano de origem≠ | 1994–1997 | 1984 |
| Autor original≠ | Carter & Kohn; West & Harrison | Stuart Geman & Donald Geman |
| Tipo≠ | Bayesian posterior sampling for time-ordered data | MCMC sampling algorithm |
| Fonte seminal≠ | Carter, C. K. & Kohn, R. (1994). On Gibbs sampling for state space models. Biometrika, 81(3), 541–553. DOI ↗ | Geman, S. & Geman, D. (1984). Stochastic relaxation, Gibbs distributions, and the Bayesian restoration of images. IEEE Transactions on Pattern Analysis and Machine Intelligence, 6(6), 721-741. DOI ↗ |
| Outros nomes | MCMC time series, Bayesian time series MCMC, time series posterior sampling, sequential Bayesian MCMC | Gibbs sampler, coordinate-wise MCMC, systematic scan Gibbs, blocked Gibbs sampling |
| Relacionados≠ | 6 | 5 |
| Resumo≠ | Time series MCMC applies Markov chain Monte Carlo methods to Bayesian inference over time-ordered data. Rather than optimising a single parameter estimate, it draws samples from the full joint posterior of parameters and latent states, yielding probability distributions that honestly reflect uncertainty about dynamics, trends, and seasonal patterns across every time point. | Gibbs sampling is a Markov chain Monte Carlo algorithm that approximates a high-dimensional posterior distribution by repeatedly drawing each parameter from its full conditional distribution given all other parameters and the data. Because each draw is exact from a conditional — not a proposal that may be rejected — the sampler is efficient when those conditionals are available in closed form. |
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