Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Variační inference pro časové řady× | MCMC pro časové řady× | |
|---|---|---|
| Obor | Bayesovská statistika | Bayesovská statistika |
| Rodina | Bayesian methods | Bayesian methods |
| Rok vzniku≠ | 1999–2017 | 1994–1997 |
| Tvůrce≠ | Jordan, Ghahramani, Jaakkola, Saul; extended by Blei and colleagues | Carter & Kohn; West & Harrison |
| Typ≠ | Approximate Bayesian inference | Bayesian posterior sampling for time-ordered data |
| Původní zdroj≠ | Blei, D. M., Kucukelbir, A. & McAuliffe, J. D. (2017). Variational inference: A review for statisticians. Journal of the American Statistical Association, 112(518), 859-877. DOI ↗ | Carter, C. K. & Kohn, R. (1994). On Gibbs sampling for state space models. Biometrika, 81(3), 541–553. DOI ↗ |
| Další názvy | time-series VI, variational Bayes for time series, TSVI, sequential variational inference | MCMC time series, Bayesian time series MCMC, time series posterior sampling, sequential Bayesian MCMC |
| Příbuzné | 6 | 6 |
| Shrnutí≠ | Time series variational inference applies variational Bayes to sequential data, approximating the intractable posterior over latent states and parameters with a tractable family of distributions. By maximising the evidence lower bound (ELBO), it delivers fast, scalable Bayesian inference for state-space models, dynamic latent variable models, and other time-ordered probabilistic systems. | 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. |
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