Showing 1 - 10 of 137
assumed to be Gaussian, the resulting prediction distribution may have an infinite variance beyond a certain forecasting … approximation causes no serious problems for parameter estimation or for forecasting one or two steps ahead. However, for longer …. The performance of the Gaussian approximation is compared with those of two lognormal models for short-term forecasting …
Persistent link: https://www.econbiz.de/10005125278
forecasting. The parameter space for SSOE models may be specified to match that of the corresponding ARIMA scheme, or it may be … that underlies the Holt-Winters forecasting method. Conditionally heteroscedastic models may be developed in a similar …
Persistent link: https://www.econbiz.de/10005427626
to be forecast. The EIC provides a data-driven model selection tool that can be tuned to the particular forecasting task …'s Bayesian Information Criterion (BIC). The comparisons show that for the M3 forecasting competition data, the EIC outperforms …
Persistent link: https://www.econbiz.de/10005427642
-term forecasting and also produce sensible long-term forecasts. The forecasts are compared with the official Australian government …
Persistent link: https://www.econbiz.de/10005149064
The application of traditional forecasting methods to discrete count data yields forecasts that are non-coherent. That …
Persistent link: https://www.econbiz.de/10005149090
the other periods. Croston's method is a widely used procedure for intermittent demand forecasting. However, it is an ad …
Persistent link: https://www.econbiz.de/10005087603
We describe some fast algorithms for reconciling large collections of time series forecasts with aggregation constraints. The constraints arise due to the need for forecasts of collections of time series with hierarchical or grouped structures to add up in the same manner as the observed time...
Persistent link: https://www.econbiz.de/10010958941
hierarchical forecasting which provides optimal forecasts that are better than forecasts produced by either a top-down or a bottom …-up approach. Our method is based on independently forecasting all series at all levels of the hierarchy and then using a … also allows us to construct prediction intervals for the resultant forecasts. Finally, we apply the method to forecasting …
Persistent link: https://www.econbiz.de/10005087592
Realized volatility of stock returns is often decomposed into two distinct components that are attributed to continuous price variation and jumps. This paper proposes a tobit multivariate factor model for the jumps coupled with a standard multivariate factor model for the continuous sample path...
Persistent link: https://www.econbiz.de/10008467332
A new class of models for data showing trend and multiplicative seasonality is presented. The models allow the forecast error variance to depend on the trend and/ or the seasonality. It can be shown that each of these models has the same updating equations and forecast functions as the...
Persistent link: https://www.econbiz.de/10005149041