نتایج جستجو برای: exponential smoothing

تعداد نتایج: 84563  

Journal: :Journal of Economic Dynamics and Control 2003

2006
Baki Billah Maxwell L. King Ralph D. Snyder Anne B. Koehler

Applications of exponential smoothing to forecasting time series usually rely on three basic methods: simple exponential smoothing, trend corrected exponential smoothing and a seasonal variation thereof. A common approach to selecting the method appropriate to a particular time series is based on prediction validation on a withheld part of the sample using criteria such as the mean absolute per...

Journal: :JAMBURA JOURNAL OF PROBABILITY AND STATISTICS 2023

The aim of study is to forecast global tourist visits and compare the forecasting methods determine best method using random forest, single exponential smoothing double smoothing, respectively. These are applied in visit data West Nusa Tenggara Province. Random familiar frequently utilized forecasting. In addition, three have great accuracy for time series data, such as visits. used this from 2...

2008
Ralph D. Snyder Anne B. Koehler

Damped trend exponential smoothing has previously been established as an important forecasting method. Here, it is shown to have close links to simple exponential smoothing with a smoothed error tracking signal. A special case of damped trend exponential smoothing emerges from our analysis, one that is more parsimonious because it effectively relies on one less parameter. This special case is c...

2004
Ralph D Snyder Ralph D. Snyder

In the exponential smoothing approach to forecasting, restrictions are often imposed on the smoothing parameters which ensure that certain components are exponentially weighted averages. In this paper, a new general restriction is derived on the basis that the one-step ahead prediction error can be decomposed into permanent and transient components. It is found that this general restriction red...

2009
James W. Taylor Ralph D Snyder Ralph D. Snyder

This paper concerns the forecasting of seasonal intraday time series. An extension of Holt-Winters exponential smoothing has been proposed that smoothes an intraday cycle and an intraweek cycle. A recently proposed exponential smoothing method involves smoothing a different intraday cycle for each distinct type of day of the week. Similar days are allocated identical intraday cycles. A limitati...

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