Fuzzy seasonal time series for forecasting the production value of the mechanical industry in Taiwan

The production value of the mechanical industry in Taiwan was forecasted using fuzzy seasonal time series. A potential benefit of the study was providing enterprises with a method to conduct short-term predictions that will serve as an aid to accurate planning. The fuzzy seasonal time series method included interval models with interval parameters which makes the distribution of future value a possibility. The results of the application of the method showed that the method can be relied on to make good forecasts.