Exponential smoothing techniques enjoy a wide range of applications to problems in signal detection, inventory and production control, financial planning, and many other areas of business and engineering. One of the most useful models used to explain the theoretical structure of the process is a cha
A new Bayesian formulation for Holt's exponential smoothing
β Scribed by Robert R. Andrawis; Amir F. Atiya
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 212 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0277-6693
- DOI
- 10.1002/for.1094
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β¦ Synopsis
Abstract
In this paper we propose a Bayesian forecasting approach for Holt's additive exponential smoothing method. Starting from the state space formulation, a formula for the forecast is derived and reduced to a twoβdimensional integration that can be computed numerically in a straightforward way. In contrast to much of the work for exponential smoothing, this method produces the forecast density and, in addition, it considers the initial level and initial trend as part of the parameters to be evaluated. Another contribution of this paper is that we have derived a way to reduce the computation of the maximum likelihood parameter estimation procedure to that of evaluating a twoβdimensional grid, rather than applying a fiveβvariable optimization procedure. Simulation experiments confirm that both proposed methods give favorable performance compared to other approaches.βCopyright Β© 2008 John Wiley & Sons, Ltd.
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