Browsing by Author "Gamal"

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    METODE PERAMALAN HOLT-WINTER UNTUK MEMPREDIKSI JUMLAH PENGUNJUNG PERPUSTAKAAN UNIVERSITAS RIAU
    (2016-02-04) Rosalina, Encik; Sugiarto, Sigit; Gamal
    This article discusses the use of numerically Holt-Winter method in predicting the number of visitors to University of Riau library. This method is divided into two, additive and multiplicative Holt-Winter methods. Furthermore, the identi cation of the seasonal variance is carried out to select an appropriate Holt-Winter method and to measure the forecasting error numerically based on the mean absolute percentage error.
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    METODE PERAMALAN HOLT-WINTERS DENGAN MEMPERHATIKAN EFEK LEBARAN
    (2016-02-04) Irawansyah, Hadi; Gamal; Bustami
    This article discusses the Holt-Winters forecasting method that takes into account the effect of Eid. This method is used to predict total domestic passenggers departing in 5 major ports in Indonesia. Then a comparison is carried out between the method of Holt-Winters and Holt-Winters methods that take into account the effect of Eid. The comparison is done by comparing the mean square error obtained by both methods of forecasting.