Question

Which time-series model uses past forecasts?

Answer 1

It is used to forecast a constant model or level data.smoothing is used as a forecasting model. Here Ft represents the forecast for period t, Dt is the known demand for period t and α is the smoothing constant.

Answer 2

$\textbf \red{ARIMA, SARIMA}$

As for exponential smoothing, also ARIMA models are among the most widely used approaches for time series forecasting. The name is an acronym for AutoRegressive Integrated Moving Average. In an AutoRegressive model the forecasts correspond to a linear combination of past values of the variable.

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