haku: @author Aldrin, M. / yhteensä: 1
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| Tekijä: | Aldrin, M. Damsleth, E. |
| Otsikko: | Forecasting non-seasonal time series with missing observations. |
| Lehti: | Journal of Forecasting
1989 : APR-JUN, VOL. 8:2, p. 97-116 |
| Asiasana: | FORECASTING TECHNIQUES TIME SERIES |
| Kieli: | eng |
| Tiivistelmä: | Most forecasting methods are based on equally spaced data. In the case of missing observations the methods have to be modified. Three smoothing methods are considered: 1. simple exponential smoothing; 2. double exponential smoothing; 3. the Holt's method. A new, unified approach is also presented to handle missing data within the smoothing methods. This approach is compared with previously suggested modifications. The comparison is done on 12 real, non-seasonal time series. It is shown that the smoothing methods, properly modified, usually perform well if the time series have a moderate number of missing observations. |
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