Which classical baseline model handles weekly seasonality and upward trend?
Tests matching model structure to data characteristics. Name Holt-Winters triple exponential smoothing; map its level, trend, and seasonal equations to weekly period. Red flag: jumping to SARIMA without explaining why ETS is the natural baseline.
Tests whether you can select a classical baseline that decomposes a series into interpretable components. Name Holt-Winters triple exponential smoothing and describe its three update equations: level smoothing the baseline, trend capturing the upward slope, and seasonal learning the weekly deviation pattern with period m=7. Mention additive seasonality for constant week-over-week swings and multiplicative for swings scaling with level.
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- #forecasting
- #time-series
- #holt-winters
- #exponential-smoothing
- #seasonality
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