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Practical Time Series Analysis by Dr. PKS Prakash, Dr. Avishek Pal

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Modeling higher-order exponential smoothing

The concept can be further extended to higher-order exponential smoothing with an nth order polynomial model:

Here, error εt ∼ N(0,σ2) is normally distributed with 0 mean and σ2 variance. The exponential smoothers used for higher order are as follows:

...

Here, is weights for smoothers. Usually, higher-order ...

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