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| ベイジアン構造時系列モデル× | 状態空間モデル（カルマンフィルタ）× | |
|---|---|---|
| 分野≠ | ベイズ | 計量経済学 |
| 系統≠ | Bayesian methods | Regression model |
| 提唱年≠ | 2014 | 1990 |
| 提唱者≠ | Scott & Varian (2014); Brodersen et al. (2015) | Harvey; Durbin & Koopman (state space treatment); Kalman filter |
| 種類≠ | State-space model / Bayesian structural model | State space time series model |
| 原典≠ | Scott, S. L. & Varian, H. R. (2014). Predicting the Present with Bayesian Structural Time Series. International Journal of Mathematical Modelling and Numerical Optimisation, 5(1/2), 4–23. DOI ↗ | Harvey, A. C. (1990). Forecasting, Structural Time Series Models and the Kalman Filter. Cambridge University Press. DOI ↗ |
| 別名 | BSTS, Bayesian Yapısal Zaman Serisi (BSTS), bayesian state-space model, causal impact model | state space, Kalman filter, unobserved components model, Durum Uzayı Modeli (State Space / Kalman Filter) |
| 関連≠ | 5 | 4 |
| 概要≠ | Bayesian Structural Time Series (BSTS) is a state-space modelling framework, introduced by Scott and Varian (2014), that decomposes a time series into additive components — trend, seasonality, and regression — and estimates them jointly through Bayesian inference. It underpins Google's CausalImpact library and is a powerful tool for both forecasting and counterfactual causal analysis of interventions. | A state space model is a general time series framework that describes a series through unobserved (latent) state variables linked by a measurement equation and a transition equation, with the states estimated in real time by the Kalman filter. Developed in the state space tradition of Harvey (1990) and Durbin & Koopman (2012), it nests ARIMA and exponential smoothing as special cases. |
| ScholarGateデータセット ↗ |
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