השוואת שיטות
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| מודל SARIMA עם פרמטרים משתנים בזמן (TVP-SARIMA)× | מודל SARIMA× | |
|---|---|---|
| תחום | אקונומטריקה | אקונומטריקה |
| משפחה | Regression model | Regression model |
| שנת המקור≠ | 1990s | 1970 (first edition); 1976 (revised) |
| הוגה השיטה≠ | Harvey, A. C.; Durbin, J. & Koopman, S. J. (state-space framework) | Box, Jenkins, and Reinsel |
| סוג≠ | Time-varying state-space model | Seasonal time series model |
| מקור מכונן≠ | Harvey, A. C. (1990). Forecasting, Structural Time Series Models and the Kalman Filter. Cambridge University Press. ISBN: 9780521321969 | Box, G. E. P., Jenkins, G. M., & Reinsel, G. C. (1976). Time Series Analysis: Forecasting and Control (revised ed.). Holden-Day. ISBN: 978-0130607744 |
| כינויים | TVP-SARIMA, time-varying SARIMA, state-space SARIMA, adaptive SARIMA | SARIMA, seasonal ARIMA, Box-Jenkins seasonal model, ARIMA with seasonal component |
| קשורות≠ | 4 | 5 |
| תקציר≠ | The Time-Varying Parameter SARIMA model extends the classical SARIMA framework by allowing autoregressive and moving-average coefficients to evolve over time. Cast as a state-space system and estimated with the Kalman filter, it captures both seasonal patterns and structural change within a single unified model. | SARIMA extends ARIMA by adding seasonal autoregressive and moving-average operators to capture repeating patterns at fixed intervals — such as monthly, quarterly, or annual cycles. Denoted SARIMA(p,d,q)(P,D,Q)s, it is the standard workhorse for univariate seasonal time series forecasting in econometrics, economics, and official statistics. |
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