Examlex
Identify and describe three symbols (other than those shown above) you might include in the systems flowchart.
Exponential Smoothing Model
A time series forecasting technique that applies weighting factors which decrease exponentially to past observations.
Mean Absolute Percentage Error
A measure used in statistics to assess the accuracy of a forecast or prediction, calculated as the average of absolute percentages of errors between predicted and observed values.
Smoothing Constant
A smoothing constant is a parameter in exponential smoothing used to control the level of smoothing applied to a time series.
Holt-Winters Additive Model
A forecasting technique that applies weighted averages and seasonality to predict future data points.
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