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| Tidsserie Bayesiansk Hierarkisk Modell× | Dynamiskt Bayesianskt Nätverk× | |
|---|---|---|
| Ämnesområde | Bayesiansk statistik | Bayesiansk statistik |
| Familj | Bayesian methods | Bayesian methods |
| Ursprungsår≠ | 1989–1997 | 1989 |
| Upphovsperson≠ | West & Harrison (dynamic models); Gelman et al. (hierarchical Bayesian framework) | Thomas Dean & Keiji Kanazawa |
| Typ≠ | Bayesian hierarchical model for time series | probabilistic graphical model for sequences |
| Ursprungskälla≠ | West, M. & Harrison, J. (1997). Bayesian Forecasting and Dynamic Models (2nd ed.). Springer. ISBN: 978-0387947259 | Dean, T. & Kanazawa, K. (1989). A model for reasoning about persistence and causation. Computational Intelligence, 5(3), 142–150. DOI ↗ |
| Alias | TSBHM, Bayesian hierarchical time series, hierarchical dynamic Bayesian model, multilevel Bayesian time series | DBN, temporal Bayesian network, dynamic probabilistic graphical model, two-slice temporal Bayesian network |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | A time series Bayesian hierarchical model combines the hierarchical (multilevel) Bayesian framework with a dynamic state-space structure to analyse temporal data collected on multiple units or groups. Priors encode beliefs about both within-unit dynamics and cross-unit variation, and the posterior is obtained via MCMC or sequential Monte Carlo, yielding full probabilistic forecasts with calibrated uncertainty. | A Dynamic Bayesian Network (DBN) extends a standard Bayesian network over time by representing how a set of random variables evolve across discrete time steps. It captures both the conditional independence structure among variables at each instant and the probabilistic dependencies between consecutive time slices, enabling principled reasoning about temporal processes under uncertainty. |
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