13.1.4 Exponential Smoothing Methods Methodology for exponential smoothing is based on intuitive ideas a set of 'custom and practice methods rather than having a well defined underlying theoretical structure Exponential smoothing model simple exponential smoothing model model to deal with time-series that contain a trend Model to deal with time-series that contain both trend and seasonality13.1.4 Exponential Smoothing Methods: • Methodology for exponential smoothing is based on intuitive ideas, – a set of 'custom and practice methods' rather than having a well defined underlying theoretical structure. • Exponential smoothing model – simple exponential smoothing model – model to deal with time-series that contain a trend – Model to deal with time-series that contain both trend and seasonality